Power Distribution

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Pole Transformer (Normal & Salinity-Tolerant)

PRODUCTS

APPLICATION

Pole transformer is applied on 22.9kV 3-phase 4 wires
multi-point grounding system with singlephase silicone steel plate metal pin

Pole transformer is applied on 22.9kV 3-phase 4 wires multi-point grounding system with singlephase silicone steel plate metal pin

CHARACTERISTIC

Minimized power loss
High temperature rise limitation (radiator not required)
Eco-friendly material (plant oil, fire retardant)

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Type	Enclosing Box	Capacity (kVA)	Efficiency (100%)	Voltage regulation (%)	No-load current (%)	No-load loss (W)	Load loss (W-100% load)	Dimension W / D / H (mm)	Weight
Normal	Steel	30	Min 98.71	Max 1.5	Max 1.0	Max 62	Max 327	480(W)/610(D)/1,160(H)	235
		50	Min 98.83	Max 1.4	Max 0.8	Max 89	Max 501	595(W)/660(D)/1,210(H)	310
		75	Min 98.92	Max 1.4	Max 0.8	Max 132	Max 681	595(W)/720(D)/1,240(H)	380
		100	Min 98.99	Max 1.3	Max 0.7	Max 165	Max 851	645(W)/730(D)/1,260(H)	450
Salinity-tolerant	Stainless	30	Min 98.71	Max 1.5	Max 1.0	Max 62	Max 327	480(W)/610(D)/1,160(H)	230
		50	Min 98.83	Max 1.4	Max 0.8	Max 89	Max 501	595(W)/660(D)/1,220(H)	305
		75	Min 98.92	Max 1.4	Max 0.8	Max 132	Max 681	595(W)/720(D)/1,250(H)	370
		100	Min 98.99	Max 1.3	Max 0.7	Max 165	Max 851	645(W)/730(D)/1,270(H)	435

Amorphous Transformer (Normal & Salinity-Tolerant)

PRODUCTS

APPLICATION

Amorphous transformer is applied on 22.9kV 3-phase 4 wires multi-point grounding system with
amorphous metal pin. (Less no-load loss)

CHARACTERISTIC

Minimized power loss
High temperature rise limitation (radiator not required)
Eco-friendly material (plant oil, fire retardant)

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Type	Enclosing Box	Capacity (kVA)	Efficiency (100%)	Voltage regulation (%)	No-load current (%)	No-load loss (W)	Load loss (W-100% load)	Dimension W / D / H (mm)	Weight
Normal	Steel	10	Min 98.51	Max 2.0	Max 1.2	10	141	420(W)/550(D)/1,050(H)	142
		20	Min 98.78	Max 1.7	Max 1.2	15	230	470(W)/600(D)/1,120(H)	204
		30	Min 98.88	Max 1.5	Max 1.0	20	309	490(W)/660(D)/1,200(H)	245
		50	Min 99.05	Max 1.4	Max 0.8	27	498	595(W)/660(D)/1,220(H)	330
		75	Min 99.05	Max 1.4	Max 0.8	38	678	635(W)/720(D)/1,250(H)	430
		100	Min 99.09	Max 1.3	Max 0.7	52	754	645(W)/730(D)/1,360(H)	505
		167	Min 99.20	Max 1.3	Max 0.7	59	1,140	820(W)/760(D)/1,280(H)	515
Salinity-tolerant	Stainless	10	Min 98.51	Max 2.0	Max 1.2	10	141	420(W)/550(D)/1,050(H)	138
		20	Min 98.78	Max 1.7	Max 1.2	15	230	470(W)/600(D)/1,120(H)	198
		30	Min 98.88	Max 1.5	Max 1.0	20	309	490(W)/660(D)/1,200(H)	225
		50	Min 98.96	Max 1.4	Max 0.8	27	498	595(W)/660(D)/1,220(H)	315
		75	Min 99.05	Max 1.4	Max 0.8	38	678	635(W)/720(D)/1,250(H)	420
		100	Min 99.20	Max 1.3	Max 0.7	52	754	645(W)/730(D)/1,360(H)	500
		167	Min 98.70	Max 1.3	Max 0.7	59	1,140	820(W)/760(D)/1,280(H)	515

Pad Mounted Transformer (Compact type)

PRODUCTS

APPLICATION

Pad mounted transformer is applied on underground distribution line. (Urban, industrial area)

CHARACTERISTIC

Protected power source side
Electrical safety device applied (protection fuse)
Compact size and easy installation

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Phase (Φ)	Capacity (kVA)	Efficiency (100%)	Voltage regulation (%)	No-load current (%)	No-load loss (W)	Load loss (W-100% load)	Dimension W / D / H (mm)	Weight
Single 1Φ	50	Min 98.60	Max 1.4	Max 0.8	Max 105	Max 590	1,000(W)/1,000(D)/950(H)	620
	100	Min 98.90	Max 1.4	Max 0.7	Max 175	Max 920	1,000(W)/1,000(D)/950(H)	800
	200	Min 98.90	Max 1.3	Max 0.6	Max 300	Max 1920	1,000(W)/1,400(D)/1,050(H)	1310
Triple 3Φ	75	Min 98.50	Max 1.8	Max 1.7	Max 210	Max 930	1,500(W)/1,000(D)/1,150(H)	1310
	150	Min 98.60	Max 1.5	Max 1.6	Max 300	Max 1820	1,500(W)/1,100(D)/1,150(H)	1480
	300	Min 98.70	Max 1.4	Max 1.0	Max 510	Max 3400	1,500(W)/1,100(D)/1,150(H)	1780
	500	Min 98.80	Max 1.3	Max 0.8	Max 750	Max 5320	1,500(W)/1,250(D)/1,150(H)	2300

Distribution Transformer

PRODUCTS

APPLICATION

Distribution transformer is insulating oil cooling type and able to be installed both indoor and outdoor.

CHARACTERISTIC

Phase : 3Ø
Frequency : 60Hz,50Hz
Primary voltage : 22.9Kv
Secondary voltage : 220, 380, 440, 208y/127, 380y/220, 400y/230, 440y/254
TAP voltage : 23.9 – R22.9 – 21.9 – 20.9 – 19.9Kv
Vector : Ddo, Dyn11. etc.

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Capacity (kVA)	Exciting Current (lo%)	Voltage Regulation	Efficiency (100%)	Efficiency (50%)	W (mm)	D (mm)	H (mm)
200	2.0	1.5	98.80	99.10	1270	820	1390
300	2.0	1.5	98.90	99.20	1320	870	1500
500	1.8	1.4	98.90	99.25	1370	950	1500
750	1.7	1.3	99.05	99.30	1420	1120	1550
1000	1.7	1.3	99.10	99.35	1570	1150	1730
2000	1.5	1.1	99.20	99.45	2030	1450	2200
2500	1.4	1.0	99.30	99.50	2520	1500	2460
3000	1.3	1.0	99.30	99.50	2550	1500	2500

Molded Transformer / Dry Type Transformer

PRODUCTS

APPLICATION

Molded transformer is high-efficient and low noise design product.
It used steel plate metal pin which applied grain refining treatment so that improve the energy loss.

CHARACTERISTIC

Phase : 3Ø
Frequency : 60Hz,50Hz
Primary voltage : 22.9Kv
Secondary voltage : 220, 380, 440, 208y/127, 380y/220, 400y/230, 440y/254
TAP voltage : 23.9 – R22.9 – 21.9 – 20.9 – 19.9Kv
Vector : Ddo, Dyn11. etc.

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Capacity (kVA)	Exciting Current (lo%)	Voltage Regulation	Efficiency (100%)	W (mm)	D (mm)	H (mm)
200	5.5	2.0	99.0	1235	790	1440
300	4.5	1.7	99.10	1330	795	1435
500	3.0	1.5	99.30	1375	840	1500
750	2.5	1.4	99.30	1445	840	1640
1000	2.5	1.3	99.40	1660	1020	1800
2000	2.0	1.1	99.50	2070	1150	2250
2500	2.0	1.1	99.50	2200	1250	2250
3000	2.0	1.0	99.50	2370	1250	2325

Power Transformer

PRODUCTS

APPLICATION

Power transformer adjusts high voltage from power plant to distribution line.
It is widely applied to high-power accepting system.

CHARACTERISTIC

hase : 3Ø
Frequency : 60Hz,50Hz
Primary voltage : 22.9Kv
Secondary voltage : 6.6/3.3kV
TAP voltage : 23.9 – R22.9 – 21.9 – 20.9 – 19.9Kv
Vector : Ddo, Dyn11. etc.

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Capacity (kVA)	Exciting Current (lo%)	Voltage Regulation	Efficiency (100%)	W (mm)	D (mm)	H (mm)
1000	4.5	1.3	98.4	2200	1950	1700
1500	4.5	1.25	98.5	2600	2100	2600
2000	4.5	1.2	98.5	2900	2200	2800
2500	4.0	1.2	98.7	3100	2500	2900
3000	4.0	1.2	98.7	3100	2600	3050
5000	4.0	1.21	98.9	3200	3000	3100
7500	3.5	1.0	99.1	3400	3400	3300
10000	3.5	1.0	99.2	3600	3800	4000

Hybrid / Polymer Bushing for Pole Transformer

PRODUCTS

APPLICATION

Protects high voltage and low voltage side terminal of pole transformer

CHARACTERISTIC

Excellent impact resistance
Prevent oil leakage
High water repellency
Light weight & Easy installation

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	High	Low
Rated current	A	40	500
Material	–	Porcelain / Silicone	Porcelain-FRP / Silicone
Power frequency withstand voltage (dry)	kV	42	15
Power frequency withstand voltage (wet)	kV	36	15
Lightning impulse withstand voltage (1.2 × 50μs)	kV	125	–
Leakage distance	mm	770 ±40	–

Bushing, Bushingwell for PAD Transformers

PRODUCTS

APPLICATION

Connects underground power cables and transformers.

CHARACTERISTIC

Excellent tightening
Excellent endurance and insulation

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Bushing	Bushing well
Rated voltage	V	400	25,800
Voltage(Max) Phase-ground	kV	–	15.2
Voltage(Max) Phase-phase	kV	–	26
Lightning impulse withstand voltage	kV	30	125
Power frequency withstand voltage (1 min)	kV	10	40
Direct current withstand voltage (15 min)	kV	–	78
Partial Discharge	pC	–	3

View Switchgears catalog

Cubicle Type Switchgear (Dry-Air & SF6 Gas insulated)

PRODUCTS

APPLICATION

Cubicle type switchgear is designed for stable power distribution in substations.
With its cubicle structure and highly reliable control system, it provides best solution for service
in private utility network such as substation in industrial and public buildings.

CHARACTERISTIC

Easy maintenance and reliable operation
Digitally controlled system with protection features
Ensured safety to operating person
Requires minimum installation space
Expandable modular system
Three-phase enclosure of functional compartments

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	SF6 Gas Type	Dry-Air Type
Rated voltage	kV	25.8	25.8
Rated short time withstand current	(kA/1sec, RMS)	25	25
Rated current	A	Busbar: 2,000 Feeder: 630	Busbar: 2,000 Feeder: 630
Power frequency withstand voltage	kV	70	60
Impulse withstand voltage	kV	150	150
Rated interrupting current	kA	25	25
Standard operation obligation	–	O-0.3sec-CO-15sec-CO	O-0.3sec-CO-15sec-CO
Protection degree	–	IP65 / IP4X	IP65 / IP4X
Mechanical endurance	times	10,000	10,000
Applied Standard	–	IEC 62271-100, KEPCO std.	IEC 62271-100, KEPCO std.

SF6 Gas insulated Pad mounted Load Break Switch

PRODUCTS

APPLICATION

SF6 gas insulated pad mounted load break switch is designed to achieve optimum performance and reliability
with low maintenance cost and long lifespan.
It can be installed for underground distribution lines to perform current breaking and data gathering.

CHARACTERISTIC

Easy maintenance and reliable operation
Light weight and easy installation
Safety mechanism (low pressure interlocking, pressure relief and safety locks)
Automation applied (Remote controllable with RTU and modem)
Voltage measuring, status monitoring

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Value
Rated voltage	kV	15 / 24 (25.8) / 35 (40.5)
Rated current	A	600
Rated short time withstand current	kA, RMS	12.5
Rated short circuit making current	kA, peak	32.5
Power frequency withstand voltage	kV	50 / 60 / 95
Impulse withstand voltage	kV	125 / 125 / 195
Rated load switching performance	times	200
Mechanical endurance	times	5,000
Weight (Automatic / Manual)	kg	450 / 320
Applied Standard	–	IEC 62271-103, KEPCO std.

SF6 Gas insulated Pole mounted Load Break Switch

PRODUCTS

APPLICATION

Pole mounted SF6-Gas insulated load break switch is designed to achieve optimum performance and reliability
with low maintenance cost and long lifespan.
The integrated type controller includes RTU (remote control, status monitoring), metering (current, voltage,
power factor, frequency, counter) & recording (events, fault current waveforms, data logging).

CHARACTERISTIC

Easy maintenance and reliable operation
Compact design and easy installation
Safety mechanism (low pressure interlocking, pressure relief and safety locks)
Automation applied (Remote controllable with RTU and modem)
Voltage measuring, status monitoring

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Value
Rated voltage	kV	12 (max.15) / 24 (max.27) / 36 (max.38)
Rated current	A	400 / 630 / 800
Rated short time withstand current	kA, RMS	12.5 / 16 / 20
Rated short circuit making current	kA, peak	32.5 / 40.5
Power frequency withstand voltage	kV	50 / 60 / 70
Impulse withstand voltage	kV	125 / 150 / 170
Manual / Automatic	–	Manual / Automatic
Mechanical endurance	times	5,000
Weight	kg	130, 145
Applied Standard	–	IEC 60265-1, IEC 62271-103, KEPCO std.

Eco Load Break Switch

PRODUCTS

APPLICATION

ECO Load Break Switch is a eco-friendly product which is designed to use epoxy molded bushings.
The integrated type controller includes RTU (remote control, status monitoring), metering (current, voltage,
power factor, frequency, counter) & recording (events, fault current waveforms, data logging).

CHARACTERISTIC

maintenance and reliable operation
Compact design and easy installation
Automation applied (Remote controllable with RTU and modem)
Voltage measuring, status monitoring

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Value
Rated voltage	kV	12 (max. 15) / 24 (max. 27)
Rated active load interrupting current	A	400 / 630
Rated short-time current	kA, RMS	12.5
Rated short circuit making current	kA, peak	32.5
Rated power frequency withstand voltage	kV	50 / 60
Impulse withstand voltage	kV	125 / 150
Manual / Automatic	–	Manual / Automatic
Mechanical endurance	times	5,000
Weight	kg	110
Applied Standard	–	IEC 62271-103, KEPCO std.

SF6 Gas Insulated Sectionalizer

PRODUCTS

APPLICATION

SF6 gas insulated sectionalizer is designed for a self-contained circuit-opening device used in junction with
source-side protective devices such as reclosers and circuit breakers.
It automatically isolate faulted sections of electrical distribution systems.

SF6 gas insulated sectionalizer is designed for a self-contained circuit-opening device used in junction with source-side protective devices such as reclosers and circuit breakers.
It automatically isolate faulted sections of electrical distribution systems.

The sectionalizer has distinct application advantages

It can be applied between two protective devices having operating curves, which are close together.
This is a vital feature in a location where an additional step in coordination is not practical or possible.
It can be used on close-in taps where fault current is highly frequent, coordinating with fuses.
It has fault close and latch capability for any fault-closing operations.

CHARACTERISTIC

Easy maintenance and reliable operation
Compact design and easy installation
Safety devices (low pressure interlocking, pressure relief, and safety locks)

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Value
Rated voltage	kV	12 (max.15) / 24 (max.27) / 36 (max.38)
Rated current	A	400 / 630
Power frequency withstand voltage	kV	50 / 60 / 70
Impulse withstand voltage	kV	125 / 150 / 170
Rated short time withstand current	kA, RMS	10 / 12.5 / 16
Rated short circuit making current	kA, peak	26 / 32.5 / 40
Minimum running current	A (Phase)	50, 70, 100, 140, 200, 300, 400A (Block)
Minimum running current	A (Ground)	25, 35, 50, 70, 100, 150, 200A (By Pass)
Rated short circuit breaking current	A	900
Applied Standard	–	IEEE Std 37.63 / IEC60265-1, KEPCO std.

SF6 Gas Insulated Vacuum Recloser

PRODUCTS

APPLICATION

SF6 gas insulated vacuum recloser is designed to use on overhead distribution lines as well as distribution
substation applications.
The magnetic actuator provides highly efficient and reliable performance while consuming very little energy.
It has a microprocessor based controller that provides the protection, data logging and communication functions.

SF6 gas insulated vacuum recloser is designed to use on overhead distribution lines as well as distribution substation applications.
The magnetic actuator provides highly efficient and reliable performance while consuming very little energy.
It has a microprocessor based controller that provides the protection, data logging and communication functions.

CHARACTERISTIC

Fault detection & protection.
Self-diagnosis control & status monitoring
Adjusting T-C curve
Sequence operational test (trip, reclosing, resetting)
Recording (events, fault current waveforms, data logging)

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Value
Rated voltage	kV	12 (max.15) / 24 (max.27) / 36 (max.38)
Rated current	A	400 / 630 / 800
Rated short circuit making current	kA, peak	32.5 / 40
Minimum running current	A (Phase)	10–1600A (step: 1A)
Minimum running current	A (Ground)	2–1600A (step: 1A)
Rated short circuit breaking current	kA	12.5 / 16
Power frequency withstand voltage	kV	50 / 60 / 70
Impulse withstand voltage	kV	125 / 150 / 170 (200)
Manual / Automatic	–	Magnetic Actuator
Mechanical endurance	times	5,000 / 10,000
Weight	kg	160 / 160 / 300
Applied Standard	–	ANSI C37.60, IEC62271-111, KEPCO std.

Pole Mounted Epoxy-Molded Vacuum Recloser

PRODUCTS

APPLICATION

Mold Epoxy-Molded recloser combines the high reliability of vacuum interruption and high dielectric strength
of encapsulated with cycloaliphatic epoxy resin.
The magnetic actuator provides consistent performance for automated distribution applications.
It has a microprocessor based controller that provides the protection, data gathering and communication function.

CHARACTERISTIC

Solid insulation (eco-friendly)
Self-diagnosis control & status monitoring
Permanently sealed enclosure with stainless steel
Built-in integrated sensors
Fast auto-reclosing capability
Recording (events, fault current waveforms, data logging)

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Value
Rated voltage	kV	12 (max.15) / 24 (max.27) / 36 (max.38)
Rated current	A	400 / 630 / 800
Power frequency withstand voltage	kV	50 / 60 / 70
Impulse withstand voltage	kV	125 / 150 / 70
Rated short circuit breaking current	kA	12.5 / 16
Rated short circuit making current	kA, peak	32.5 / 40
Minimum running current	A (Phase)	10–1600A (step: 1A)
Minimum running current	A (Ground)	2–1600A (step: 1A)
Manual / Automatic	–	Magnetic Actuator
Mechanical endurance	time	5,000 / 10,000
Weight	kg	190 / 190 / 280
Applied Standard	–	ANSI C37.60, IEC 62271-111

Polymer Bushing for Switchgear

PRODUCTS

APPLICATION

Bushings are used to provide the essential insulation when a high voltage line passes through a metal sheet or
frame that is at ground potential. Primary Disconnect Bushings are the key components of the switchgear
that serve as the connection points to energize the network downstream of the switchgear.

Bushings are used to provide the essential insulation when a high voltage line passes through a metal sheet or frame that is at ground potential.
Primary Disconnect Bushings are the key components of the switchgear that serve as the connection points to energize the network downstream of the switchgear.

CHARACTERISTIC

Switchgear and power apparatus installations
Designed for extreme environmental conditions
Cast in high dielectric strength grey silicone

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	17.5	27	36
Rated voltage	kV	17.5	27	36
Rated normal current	A	≤630
Power frequency withstand voltage (Dry)	kV	50	60	80
Power frequency withstand voltage (Wet)	kV	38	50	70
Lightning impulse flashover voltage	kV	125	150	180
Leakage distance	mm	770	910	1320
Arcing distance	mm	310	360	490
PD (1.5 Um /√3)	pC	≤10	≤10	≤10
Flammability grade (UL 94)	–	V-0

View Other Distribution Products catalog

Composite Dead-end/Suspension Insulators

PRODUCTS

APPLICATION

Used in distribution lines and supports insulation of wires, having good electrical properties and high reliability
compared to porcelain insulator.

Used in distribution lines and supports insulation of wires, having good electrical properties and high reliability compared to porcelain insulator.

CHARACTERISTIC

Easy installation and light weight
Excellent mechanical strength
Excellent insulation in polluted environment
High water repellency by using silicone
Registered on KEPCO qualified supplier list

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	36kV (A)	25kV (B)	15kV (C)
Power frequency flashover voltage (Dry)	kV	145	130	95
Power frequency flashover voltage (Wet)	kV	130	110	70
Lightning impulse flashover voltage (1.2×50μs, Positive)	kV	230	175	155
Lightning impulse flashover voltage (1.2×50μs, Negative)	kV	253	212	175
Specified mechanical load (SML)	kN	70	70	70
Section length	mm	525±25	430±20	330±15
Leakage distance	mm	760	580	425
Dry arcing distance	mm	320	280	210

Composite Line post Insulators

PRODUCTS

APPLICATION

Line post insulators are designed to provide rigid support of conducting cable
while offering the maximum resistance to damage from electrical or mechanical events

Line post insulators are designed to provide rigid support of conducting cable while offering the maximum resistance to damage from electrical or mechanical events

CHARACTERISTIC

Excellent water repellency and ozone-proof
Safety by excellent mechanical strength
Easy installation and light weight

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Units	Characteristics
Power frequency withstand voltage (Dry)	kV	110
Power frequency withstand voltage (Wet)	kV	85
Lightning impulse flashover voltage (1.2×50μs, Positive)	kV	166
Lightning impulse flashover voltage (1.2×50μs, Negative)	kV	189
Specified cantilever load (SCL)	kN	12
Specified mechanical load (SML)	kN	12
Leakage distance	mm	712
Dry arcing distance	mm	264

Composite Coupling Insulator

PRODUCTS

APPLICATION

Coupling insulator is used to reinforce the insulation performance of COS or lightning arrestor

CHARACTERISTIC

Light weight
Excellent mechanical strength
High water repellency

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Units	Characteristics
Pollution-withstand voltage (ESDD 3.5 g/m²)	kV	min 7
Power frequency withstand voltage (dry 1min)	kV	42
Lightning impulse withstand voltage (1.2×50μs)	kV	125
Specified mechanical load (for Bending)	kN	9.8
Specified mechanical load (SML)	kN	9.8
Leakage distance	mm	min 420

Composite Bus Support Insulator

PRODUCTS

APPLICATION

This insulator is mainly used for low voltage power distribution cabinets, frequency converters, and other products.

CHARACTERISTIC

Light weight
High water repellency

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Units	PIH64₄	PIG20B₄
Item	–	PIH64₄	PIG20B₄
Nominal voltage / Rated voltage	kV	6.6 / 7.2	22 / 24
Power frequency flashover voltage (Wet)	kV	22	50
Lightning impulse flashover voltage	kN	70	150
Leakage distance	mm	770	1320

Elbow Connector (25kV, 200A Loadbreak)

PRODUCTS

APPLICATION

Connects 25kV underground distribution line cables and transformers

CHARACTERISTIC

Applicable to both cable types (Cu / Al)
Designed for electric field distribution
Excellent shielding function

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristics
Rated voltage	kV	25.8
Maximum voltage – Phase-Ground	kV	15.2
Maximum voltage – Phase-Phase	kV	26
Lightning impulse withstand voltage (1.2×50μs)	kV	125
Power frequency withstand voltage (1min)	kV	40
Direct current withstand voltage (15 min)	kV	78
Short time withstand current – 0.17 seconds	A	10,000
Short time withstand current – 3 seconds	A	3,500
Partial discharge	pC	Max. 3

Elbow Connector (25kV, 600A Deadbreak)

PRODUCTS

APPLICATION

Connects 25kV underground distribution line cables and switches

CHARACTERISTIC

Applicable to both cable types (Cu / Al)
Designed for electric field distribution
Excellent shielding function

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristics
Rated voltage	kV	25.8
Maximum voltage	Phase-ground (kV)	15.2
Maximum voltage	Phase-phase (kV)	26.3
Lightning impulse withstand voltage (1.2×50μs)	kV	125
Power frequency withstand voltage (1 min)	kV	40
Direct current withstand voltage (15 min)	kV	78
Short time withstand current	0.17 seconds (A)	25,000
Short time withstand current	3 seconds (A)	10,000
Partial discharge	pC	Max. 3

23kV Class Cable Termination

PRODUCTS

APPLICATION

Used for terminal connection processing of power cable end of 23kV underground distribution line

CHARACTERISTIC

Designed for electric field distribution
Excellent shielding function
Cast in high dielectric strength grey silicone

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Units	Characteristics
Rated voltage	kV	23
Lightning impulse withstand voltage (1.2×50μs)	kV	150
Power frequency withstand voltage (1 min)	kV	65
Direct current withstand voltage (15 min)	kV	100
Partial discharge	pC	Max. 3

23kV Class Cable Joint

PRODUCTS

APPLICATION

Used for terminal connection processing of power cable end of 23kV underground distribution line.

CHARACTERISTIC

Designed for electric field distribution
Excellent shielding function
Cast in high dielectric strength grey silicone

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Units	Characteristics
Rated voltage	kV	23
Lightning impulse withstand voltage (1.2×50μs)	kV	150
Power frequency withstand voltage (1 min)	kV	52
Direct current withstand voltage (15 min)	kV	100
Partial discharge	pC	Max. 3

Polymer Cut out Switch (125BIL, 150BIL)

PRODUCTS

APPLICATION

Protects equipment from overcurrent due to short circuit or ground accidents or overload.

CHARACTERISTIC

Excellent insulation and mechanical properties
Excellent water repellency
Ligiht weight and easy installation
125BIL, 150 BIL 2-Types

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristic Value	Characteristic Value
Rated voltage	kV	25.8	25.8
Maximum design voltage	kV	27	27
Rated current	A	100	100
Rated breaking current	kA	Sym 7.1 Asym 10	Sym 8 Asym 12
Power frequency withstand voltage (Dry)	kV	42	70
Power frequency withstand voltage (Wet)	kV	36	60
Lightning impulse withstand voltage (1.2×50μs)	kV	125	150
Leakage distance	mm	400	645

Polymer Surge Arrester

PRODUCTS

APPLICATION

Protects the rear end facilities in case of lightning and abnormal voltage intrusion into the processing power line.
It also limits overvoltage by switching circuits and is used to block the flow

CHARACTERISTIC

Moisture-proof by direct molded unit
Optimal structure and high durability
Applicated zinc oxide block to ensure safety

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Characteristics
Rated voltage	kV	18
Max. continuous operating voltage (MCOV)	kV	15.3
Nominal discharge current	A	2,500 / 5,000
Reference voltage	kV	min 22.9
Residual voltage – Steep voltage	kV	66
Residual voltage – Lightning impulse voltage	kV	60
Partial discharge	pC	Max. 10
Leakage distance	mm	min 645

Polymer Surge Arrester with Lead wire

PRODUCTS

APPLICATION

Protects the rear end facilities in case of lightning and abnormal voltage intrusion into the processing power line.
Also limits overvoltage by switching circuits and is used to block the flow.
This product has a lead wire connected to a polymer lightning arrestor.

CHARACTERISTIC

Moisture-proof by direct molded unit
Optimal structure and high durability
Applicated zinc oxide block to ensure safety

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Characteristics
Rated voltage	kV	18
Max. continuous operating voltage (MCOV)	kV	15.3
Nominal discharge current	A	2,500 / 5,000
Reference voltage	kV	min 22.9
Residual voltage – Steep voltage	kV	66
Residual voltage – Lightning impulse voltage	kV	60
Partial discharge	pC	Max. 10
Leakage distance	mm	min 645

Polymer Arrester (Gap Type)

PRODUCTS

APPLICATION

Gap type arrester protects LP insulators and other applications from lightning and surge.

CHARACTERISTIC

Moisture-proof by direct molded unit
Optimal structure and high durability
Light weight and miniaturized design

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristics
Rated voltage	kV	18
Nominal discharge current	kA	2.5
Residual voltage	kV	max. 55
Power frequency withstand voltage (Dry)	kV	42 (1 min)
Power frequency withstand voltage (Wet)	kV	36 (10 seconds)
Lightning impulse flashover voltage (Pos)	kV	95–150
Lightning impulse flashover voltage (Neg)	kV	105–160
Partial discharge	pC	Max. 10

View Insulators for Railways catalog

Composite Suspension Insulator for Railways (T-s)

PRODUCTS

APPLICATION

It is used for classifying 69kV transmission line and railway line, suspention feeder lines,
and has excellent insulation and mechanical properties.

CHARACTERISTIC

Excellent mechanical characteristics and insulation
High water repellency by using silicon
Easy installation by light weight
Excellent insulation in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Unit	Characteristics No.1	Characteristics No.2 & 3
Section length	mm	750 ±5	760 ±5
Leakage distance	mm	min 1,725	min 1,725
Dry arcing distance	mm	min 570	min 570
Specified mechanical load (SML)	kN	137.2	137.2
Rated tensile load (RTL)	kN	68.6	68.6
Torsion load (1 min)	N·m	50	50
Power frequency withstand voltage (dry)	kV	230	230
Power frequency withstand voltage (wet)	kV	185	185
Lightning impulse flashover voltage (1.2×50μs, Positive)	kV	380	380
Lightning impulse flashover voltage (1.2×50μs, Negative)	kV	380	380

Composite Suspension Insulator for High-speed Railways (T-sx)

PRODUCTS

APPLICATION

It is used to distinguish 25kV high-speed railway tram lines and to suspend feeder lines,
and has excellent insulation and mechanical properties.

CHARACTERISTIC

Excellent insulation and mechanical properties
High water repellency of polymer material
Convenient construction with light weight
Excellent insulation performance in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristics
Leakage distance	mm	min 1,300
Specified mechanical load (SML)	kN	110
Rated tensile load (RTL)	kN	55 (10 second)
Power-frequency withstand voltage (wet)	kV	95
Lightning impulse withstand voltage (1.2×50μs)	kV	250
Radio interference voltage	kV	27.5
Radio interference voltage	μV at 1000kHz	10

Insulators for Railway / T-m / T-ms

PRODUCTS

APPLICATION

Used for operating bracket of 25kV high-speed rail tracks and has excellent insulation and mechanical features

CHARACTERISTIC

Composite insulator using for 25kV railway tensioning position
Excellent insulation and mechanical properties
High water repellency
Light weight & easy installation
Excellent insulation performance in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION / T-m

Specifications	Unit	Characteristics
Leakage distance	mm	A-B: min 1,250 / C-D: min 230
Specified cantilever load (SCL)	N·m	min 3,430
Rated tensile load (RTL, 1 min)	N	58,800
Power frequency flashover voltage (dry)	kV	A-B: min 230 / C-D: min 70
Power frequency flashover voltage (wet)	kV	A-B: min 180 / C-D: min 50
Lightning impulse flashover voltage (1.2×50μs)	kV	A-B: min 380 / C-D: min 100
Radio Interference Voltage	r.m.s kV	25
Radio Interference Voltage	μV at 1000kHz	10

SPECIFICATION / T-ms

Specifications	Unit	Characteristics
Leakage distance	mm	min 1,250
Specified cantilever load (SCL)	N·m	min 3,430
Rated tensile load (RTL, 1 min)	N	58,800
Power frequency flashover voltage (dry)	kV	min 230
Power frequency flashover voltage (wet)	kV	min 180
Lightning impulse flashover voltage (1.2×50μs)	kV	min 380
Radio interference voltage	r.m.s kV	25
Radio interference voltage	μV at 1000kHz	10

Composite Long Rod Insulator for High-speed Railways (T-mx)

PRODUCTS

APPLICATION

Composite insulator applied to 25kV High-speed railway (T-mx).

CHARACTERISTIC

Excellent insulating and mechanical properties
High water repellency
Light weight and easy installation
Excellent insulation performance in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specification	Units	Characteristics
Leakage distance	mm	min 1,300
Specified cantilever load (SCL)	N·m	min 4,000
Specified mechanical load (SML)	kN	90
Rated tensile load (RTL)	kN	45 (for ten seconds)
Power-frequency withstand voltage (wet)	kV	95
Lightning impulse withstand voltage (1.2×50μs)	kV	250
Radio Interference Voltage	kV	27.5
Radio Interference Voltage	μV at 1000kHz	10

Composite Tension Insulator for Railways (N-a)

PRODUCTS

APPLICATION

It is used for Dead-and line and division point of 25kV tram lines,
and has excellent insulation and mechanical properties.

It is used for Dead-and line and division point of 25kV tram lines, and has excellent insulation and mechanical properties.

CHARACTERISTIC

Composite insulator using for 25kV railway tensioning position
Excellent insulation and mechanical properties
High water repellency
Excellent insulation performance in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Unit	Rating
Leakage distance	mm	A·B: min 1,400 / C·D: min 240
Specified cantilever load (SCL)	N	min 1,863
Rated tensile load (RTL, 1 min)	N	54,917
Power frequency flashover voltage (dry)	kV	A·B: min 250 / C·D: min 80
Power frequency flashover voltage (wet)	kV	A·B: min 200 / C·D: min 55
Lightning impulse withstand voltage (1.2×50μs)	kV	A·B: min 400 / C·D: min 110

Insulators for Railway / NSP-40

PRODUCTS

APPLICATION

Insulators used to support AT feeders and conductors in underground sections, tunnels,
and bridges of railroad tracks (general and high-speed railways)

CHARACTERISTIC

High water repellency
Excellent insulating and mechanical properties
Light weight and convenient construction by applying aluminum fitting
Excellent insulation performance in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristics
Leakage distance	mm	min 1,300
Specified cantilever load (SCL)	N	min 5,000
Rated tensile load (RTL)	kN	40
Specified Mechanical Load (SML)	kN	80
Power-frequency flashover voltage (wet)	kV	95
Lightning impulse withstand voltage (1.2×50μs)	kV	250
Radio interference voltage	r.m.s kV	27.5
Radio interference voltage	μV at 1000kHz	10

Insulators for Railway / NSP-50

PRODUCTS

APPLICATION

Insulators used to support AT feeders and conductors in underground sections, tunnels,
and bridges of railroad tracks (general and high-speed railways)

CHARACTERISTIC

High water repellency
Excellent insulating and mechanical properties
Light weight and convenient construction by applying aluminum fitting
Excellent insulation performance in contaminated environment

Specifications shown below can be adjusted, without notice, to improve its performance.

The product can be customized to fit customer’s requirements.

Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.

SPECIFICATION

Specifications	Units	Characteristics
Leakage distance	mm	min 1,100
Specified cantilever load (SCL)	N	min 6,963
Rated tensile load (RTL)	N	39,227
Power-frequency flashover voltage (dry)	kV	200
Power-frequency flashover voltage (wet)	kV	150
Lightning impulse withstand voltage (1.2×50μs)	kV	min 320
Radio interference voltage	r.m.s kV	25
Radio interference voltage	μV at 1000kHz	10