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Surge Arrester for Transmission Line 12kV Parallel Arrester

Surge Arrester Series

1. Ratings:0.22~500KV (porcelain),0.22~220KV(composite)

2. Application:for protection of power transmission & distribution system from over-voltage.

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Overview

The Surge Arrester is a high-performance protective device designed to safeguard electrical and electronic systems from transient voltage surges caused by lightning strikes, switching operations, or grid faults. Suitable for diverse environments—from power grids to renewable energy installations—this arrester combines durability, compliance with international standards, and ease of installation for comprehensive protection.

Application Scenarios

1.Power Systems

Protects transformers, switchgear, and substations from lightning strikes.

2.Renewable Energy

Safeguards solar inverters and wind turbine controllers.

3.Telecommunications

Shields base stations and data centers from voltage spikes.

4.Industrial Equipment

Ensures reliability for motors, and automation systems.

Working Condition

1. Ambient air temperature:-40ºC ~+40ºC ;

2. Altitude:<=2000m;

3. Frequency: 48Hz~62Hz;

4. Power frequency voltage applied between terminals of surge arrester must not exceed continuous operating voltage of surge arrerter;

5. Earthquake intensity is less than 8 degree;

6. Max. Wind speed is 35m/s

Technical Parameter

1. Metal oxide Polymer Housing (Gapless) type Surge Arrester for A.C System(5kA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s)	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
YH-5W-6	6	5.1	18		320	150	65
YH-5W-9	9	7.65	27		430	150	65
YH-5W-12	12	10.2	36		430	150	65
YH-5W-15	15	12.75	45		530	150	65
YH-5W-18	18	15.3	54		530	150	65
YH-5W-21	21	16.8	63		640	150	65
YH-5W-24	24	19.2	72		640	150	65
YH-5W-27	27	21.6	81		740	150	65
YH-5W-30	30	24	90		890	150	65
YH-5W-33	33	26.4	99		890	150	65
YH-5W-36	36	28.8	108		1115	150	65

2. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (10KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s)	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
YH-10W-6	6	5.1	18	1	320	250	100
YH-10W-9	9	7.65	27	1	430	250	100
YH-10W-12	12	10.2	36	1	430	250	100
YH-10W-15	15	12.75	45	1	530	250	100
YH-10W-18	18	15.3	54	1	530	250	100
YH-10W-21	21	16.8	63	1	640	250	100
YH-10W-24	24	19.2	72	1	740	250	100
YH-10W-27	27	21.6	81	1	740	250	100
YH-10W-30	30	24	90	1	890	250	100
YH-10W-33	33	26.4	99	1	890	250	100
YH-10W-36	36	28.8	108	1	1115	250	100
YH-10W-42	42	33.6	126	2	1260	400	100
YH-10W-48	48	39	139	2	1260	400	100
YH-10W-54	54	42	160	2	1260	400	100
YH-10W-60	60	48	178	2	1465	400	100
YH-10W-66	66	52.8	196	2	1465	400	100
YH-10W-72	72	57	214	2	2255	400	100
YH-10W-84	84	67.2	244	2	2255	400	100
YH-10W-90	90	72.5	249	2	2255	400	100
YH-10W-96	96	75	265	3	3555	800	100
YH-10W-108	108	84	281	3	3555	800	100
YH-10W-120	120	96	300	3	4153	800	100
YH-10W-150	150	120	416	3	5040	800	100
YH-10W-200	200	156	520	3	7110	800	100

3. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (20KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s)	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
YH-20W-108	108	84	281	3	3555	800	100
YH-20W-120	120	96	300	3	4153	800	100
YH-20W-150	150	120	416	3	5040	800	100
YH-20W-200	200	156	520	3	7110	800	100

4. Metal Oxide Porcelain Housing (Gapless) type Surge Arrester for A.C. System (5KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s)	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
Y5W-6	6	5.1	18		280	150	65
Y5W-9	9	7.65	27		320	150	65
Y5W-12	12	10.2	36		320	150	65
Y5W-15	15	12.75	45		450	150	65
Y5W-18	18	15.3	54		450	150	65
Y5W-21	21	16.8	63		450	150	65
Y5W-24	24	19.2	72		510	150	65
Y5W-27	27	21.6	81		510	150	65
Y5W-30	30	24	90		890	150	65
Y5W-33	33	26.4	99		890	150	65
Y5W-36	36	28.8	108		890	150	65

5. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (10KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s)	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
Y10W-6	6	5.1	18	1	280	250	100
Y10W-9	9	7.65	27	1	320	250	100
Y10W-12	12	10.2	36	1	320	250	100
Y10W-15	15	12.75	45	1	450	250	100
Y10W-18	18	15.3	54	1	450	250	100
Y10W-21	21	16.8	63	1	450	250	100
Y10W-24	24	19.2	72	1	510	250	100
Y10W-27	27	21.6	81	1	510	250	100
Y10W-30	30	24	90	1	890	250	100
Y10W-33	33	26.4	99	1	890	250	100
Y10W-36	36	28.8	108	1	890	250	100
Y10W-42	42	33.6	126	2	1256	400	100
Y10W-48	48	39	139	2	1256	400	100
Y10W-54	54	42	160	2	1256	400	100
Y10W-60	60	48	178	2	1440	400	100
Y10W-66	66	52.8	196	2	1440	400	100
Y10W-72	72	57	214	2	1440	400	100
Y10W-84	84	67.2	244	2	2200	400	100
Y10W-90	90	72.5	249	2	2200	400	100
Y10W-96	96	75	265	3	3350	800	100
Y10W-108	108	84	281	3	3350	800	100
Y10W-120	120	96	300	3	3948	800	100
Y10W-150	150	120	416	3	4400	800	100
Y10W-200	200	156	520	3	6700	800	100

6. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (20KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s)	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
Y20W-108	108	84	281	3	3555	800	100
Y20W-120	120	96	300	3	4106	800	100
Y20W-150	150	120	416	3	4400	800	100
Y20W-200	200	156	520	3	6700	800	100
Y20W-444	444	324	1106	4	17052	2000	100

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Surge Arrester for Transmission Line 12kV Parallel Arrester

Technical Parameter

Technical Parameter

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