Lightning arrester

Surge arresters are the foundation of the insulation coordination of various electrical equipment in power systems (transformers, reactors, capacitors, generators, motors, PTs, CTs, circuit breakers, contactors, and all other medium and high-voltage electrical equipment). The protection performance of surge arresters determines the internal and external insulation indicators (short-time power frequency withstand voltage, lightning impulse withstand voltage, and switching impulse withstand voltage, etc.) of all electrical equipment in the power system. Metal Oxide surge Arresters (MOA) are advanced products among conventional surge arresters. The core working element uses zinc oxide-based multi-metal oxide powder sintering, which has excellent non-linear volt-ampere characteristics, fast steep wave response, and large current carrying capacity.

Commodity name： Lightning arrester

Product Details

Overview

Surge arresters are the foundation of the insulation coordination of various electrical equipment in power systems (transformers, reactors, capacitors, generators, motors, PTs, CTs, circuit breakers, contactors, and all other medium and high-voltage electrical equipment). The protection performance of surge arresters determines the internal and external insulation indicators (short-time power frequency withstand voltage, lightning impulse withstand voltage, and operating impulse withstand voltage, etc.) of all electrical equipment in the power system. Metal Oxide surge Arrester (hereinafter referred to as MOA) is an advanced product among conventional surge arresters. The core working element uses a multi-element metal oxide powder mainly made of zinc oxide, which has excellent nonlinear voltage-current characteristics, fast steep-wave response, and large current carrying capacity.

Model Description

Technical Parameters

Table 1 Electrical Characteristics of Conventional Surge Arresters 10kV and Below

Application Scenarios	System Nominal Voltage (kV)	Arrester Model	Arrester Rated Voltage (kV)	Arrester Continuous Operating Voltage (kV)	DC 1mA Reference Voltage (kV) ≥	Leakage Current at 0.75 DC Reference Voltage (μA) ≤	8/20 Lightning Impulse Residual Voltage (kV) ≤	30/60 Operating Impulse Residual Voltage (kV) ≤	1/4 Steep-wave Impulse Residual Voltage (kV) ≤	2000μs Square Wave Current Carrying Capacity (A)
Low Voltage	0.22	Y(H)1.5W-0.28/1.3	0.28	0.24	0.6	50	1.3	-	-	75
Low Voltage	0.38	Y(H)1.5W-0.5/2.6	0.5	0.42	1.5	50	2.6	-	-	75
Distribution	3	Y(H)5WS-5(3.8)/15	5(3.8)	4.0(2.0)	7.5	50	15.0	12.8	17.3	75
	6	Y(H)5WS-10(7.6)/30	10(7.6)	8.0(4.0)	15.0	50	30.0	25.6	34.6	75
	10	Y(H)5WS-17(12.7)/50	17(12.7)	13.6(6.6)	25.0	50	50.0	42.5	57.5	75
Power Station	3	Y(H)5WZ-5(3.8)/13.5	5(3.8)	4.0(2.0)	7.2	50	13.5	11.5	15.5	200
	6	Y(H)5WZ-10(7.6)/27	10(7.6)	8.0(4.0)	14.4	50	27.0	23.0	31.0	200
	10	Y(H)5WZ-17(12.7)/45	17(12.7)	13.6(6.6)	24.0	50	45.0	38.0	51.8	200
Capacitor	3.15	Y(H)5WR-5(3.8)/13.5	5(3.8)	4.0(2.0)	7.2	50	13.5	10.5	-	400
	6.3	Y(H)5WR-10(7.6)/27	10(7.6)	8.0(4.0)	14.4	50	27.0	21.0	-	400
	10.5	Y(H)5WR-17(12.7)/46	17(12.7)	13.6(6.6)	24.0	50	46.0	35.0	-	400
Motor	3.15	Y(H)2.5WD-4(3.8)/9.5	4(3.8)	3.15(2.0)	5.7	50	9.5	7.6	10.7	400
	6.3	Y(H)2.5WD-8(7.6)/18.7	8(7.6)	6.3(4.0)	11.2	50	18.7	15.0	21.0	200
	10.5	Y(H)2.5WD-13.5(12.7)/31	13.5(12.7)	10.5(6.6)	18.6	50	31.0	25.0	34.7	200
Generator	3.15	Y(H)5WD-4(3.8)/9.5	4(3.8)	3.15(2.0)	5.7	50	9.5	7.6	10.7	400
	6.3	Y(H)5WD-8(7.6)/18.7	8(7.6)	6.3(4.0)	11.2	50	18.7	15.0	21.0	400
	10.5	Y(H)5WD-13.5(12.7)/31	13.5(12.7)	10.5(6.6)	18.6	50	31.0	25.0	34.7	400
	13.8	Y(H)5WD-17.5/40	17.5	13.8	24.4	50	40.0	32.0	44.8	400
	15.75	Y(H)5WD-20/45	20	15.75	28	50	45.0	36.0	50.4	400
	18.0	Y(H)5WD-23/51	23.0	18.0	31.9	50	51.0	40.8	57.0	400
	20.0	Y(H)5WD-25/56.2	25.0	20.0	25.4	50	56.2	45.0	62.9	400

Table 2 Electrical Characteristics of Conventional Surge Arresters 35kV and Above

System Nominal Voltage (kV)	Application Scenarios	Arrester Model	Arrester Rated Voltage (kV)	Arrester Continuous Operating Voltage (kV)	DC 1mA Reference Voltage (kV) ≥	Leakage Current at 0.75 DC Reference Voltage (μA) ≤	8/20μs Impulse Current Residual Voltage (kV, Peak) ≤	30/60μs Operating Impulse Current Residual Voltage (kV, Peak) ≤	1/4 Steep-wave Impulse Current Residual Voltage (kV, Peak) ≤	2000μs Square Wave Current Carrying Capacity (A)
35	Power Station	Y(H)5WZ-51(42)/134	51(42)	40.8(23.4)	73	50	134	114	154	400
	Capacitor	Y(H)5WR-51(42)/134	51(42)	40.8(23.4)	73	50	134	105	-	400
	Line	Y(H)5WX-51(42)/134	51(42)	40.8(23.4)	73	50	134	114	154	400
		YHSWX-54/150	54(42)	40.8	77	50	150	128	169	400
	Line Suspension Type	HY5CX-42/120	42	70.0	240	-	120	-	138	400
66	Power Station	Y(H)5WZ-84/221	84	67.2	121	50	221	188	254	600
		Y(H)5WZ-90/235	90	72.5	130	50	235	201	270	600
		Y(H)10WZ-84/221	84	67.2	121	50	221	188	248	600
		Y(H)10WZ-90/235	90	72.5	130	50	235	201	264	600
	Line	YHSWX-96/250	96	75	140	50	250	213	288	600
	Line	YHSWX-96/275	96	75	154	50	275	234	316	600
110	Power Station	Y(H)5WZ-100/260	100	78	145	50	260	221	399	600
		Y(H)5WZ-102/266	102	79.6	148	50	266	226	305	600
		Y(H)5WZ-108/281	108	84	157	50	281	239	323	600
		Y(H)10WZ-100/260	100	78	145	50	260	221	291	600
		Y(H)10WZ-102/266	102	79.6	148	50	266	226	297	600
		Y(H)10WZ-108/281	108	84	157	50	281	239	315	600
	Line	YHSWX-108/281	108	84	157	50	281	239	323	600
		YHSWX-108/309	108	84	173	50	309	263	348	600
		YH10WX-108/281	108	84	157	50	281	239	315	600
		YH10WX-108/309	108	84	173	50	309	263	348	600
220	Power Station	Y(H)10WZ-192/500	192	150	280	50	500	426	560	600

Table 3 Electrical Characteristics Table of Conventional Neutral Point Arrester

Application Scenarios	System Nominal Voltage (kV)	Arrester Model	Arrester Rated Voltage (kV)	Arrester Continuous Operating Voltage (kV)	DC 1mA Reference Voltage (kV) ≥	Leakage Current at 0.75 DC Reference Voltage (μA) ≤	8/20μs Lightning Impulse Current Residual Voltage (kV, Peak) ≤	30/60μs Operating Impulse Current Residual Voltage (kV, Peak) ≤	2000μs Square Wave Current Carrying Capacity (A)
Motor	3.15	Y(H)1.5W-2.4/6	2.4	1.9	3.4	50	6.0	5.0	400
	6.3	Y(H)1.5W-4.5/12	4.8	3.8	6.8	50	12.0	10.0	400
	10.5	Y(H)1.5W-8/19	8.0	6.4	11.4	50	19.0	15.9	400
	13.8	Y(H)1.5W-10.5/23	10.5	8.4	14.9	50	23.0	19.2	400
	15.75	Y(H)1.5W-12/26	12	9.6	17.0	50	26.0	21.6	400
	18.0	Y(H)1.5W-13.7/29.2	13.7	11.0	19.5	50	29.2	24.3	400
	20.0	Y(H)1.5W-15.2/31.7	15.2	12.2	21.6	50	21.7	26.4	400
Transformer	35	Y(H)1.5W-30/80	30	24	44	50	80	67.5	400
	110	Y(H)1.5W-60/144	60	48	85	50	144	135	400
	110	Y(H)1.5W-72/186	72	58	103	50	186	174	400
	220	Y(H)1.5W-144/320	144	116	205	50	320	299	400
	330	Y(H)1.5W-207/440	207	167	208	50	440	411	400