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Appliation:
The ZnO arrester is mainly used to protect distribution transformer, cable connector and electric equipment from being damaged by lightning impulse voltage and operated over-voltage.

Keystone:
The zinc oxide arrester is the most advanced over-voltage protector in the world, due to make the resistor disc of core component mainly adopt zine oxide arrester, compared with the conventional siliconcarbide arrester, this presciption of the product improves greatly the volt-Ampere charateristics of the resistor disc and increased through-current capability at over-voltage so as to bring a radical changes for the characteristics of the arresters.
Under the circumstance of normal operating voltage, the current through the arrester is just on micro ampere degree. When suffered from over-voltage, the arrester’s excellent nonlinear characteristics will make the current through the arrester increase to several thousand amperes, while the arrester will be under the circulating state and release over-voltage energy so as to protecting the power transmission equipments against the damage caused by the over-voltage.

Normal service conditions:
The ambient air temperarture is no higher than +40 degree. no lower than -40 degree.
The altitude above sea level does not exceed 1000~2000m (the altiplanoarea should be indicated when order).
AC system frequency 50~60HZ.
Industrial frequency voltage brought to bear on arrester for a long time does not exceed arrester’s sustained operation voltage.
Maximum wind speed not exceed 35m/s.
The earthquake intensity does not exceed 7 degrees.
The filthy area should be given clear indication.

Technical performance:
The technical performance of the product is in confirm to IEC60099-4, IEC37-199/CDV, standard technical requirements.

Type instruction

Polymeric housed metal-oxide surge
Arrester without gaps
Nominal discharge current 5 kA (export)

Type	MOA Rated Voltage	MCOV	Current impulse Residual Voltage			2ms rectangular Current impulse withstand	4/10µs high Current impulse withstand
Type	MOA Rated Voltage	MCOV	1/10µs steep Current impulse	8/20µs lightning current impulse	30/60µs swiching current impulse	2ms rectangular Current impulse withstand	4/10µs high Current impulse withstand
	kV(rms)	kV(rms)	kV(crest)	kV(crest)	kV(crest)	A(crest)	kA(crest)
YH5W-3	3	2.55	11.3	9	8.9	150	65
YH5W-6	6	5.1	22.6	18	16.8	150	65
YH5W-9	9	7.65	33.7	27	23.8	150	65
YH5W-10	10	8.4	36	30	23	150	65
YH5W-11	11	9.4	40	33	30	150	65
YH5W-12	12	10.2	42.2	36	27	150	65
YH5W-15	15	12.7	51	45	38.5	150	65
YH5W-18	18	15.3	61.5	54	46.2	150	65
HY5W-21	21	17.0	71.8	63	54.2	150	65
YH5W-24	24	19.5	82	72	62	150	65
YH5W-27	27	22.0	92	81	69.8	150	65
YH5W-30	30	24.4	102	90	79	150	65
YH5W-33	33	27.5	112	99	86.7	150	65
YH5W-36	36	29.0	123	108	92.4	150	65
YH5W-39	39	31.5	117	103	94	400	100
YH5W-42	42	33.6	126	111	101	400	100
YH5W-45	45	36.5	128	119	102	400	100
YH5W-48	48	39	139	127	110	400	100
YH5W-51	51	40.8	151	135	115	400	100
YH5W-54	54	42	160	143	119	400	100
YH5W-60	60	48	178	159	132	400	100
YH5W-66	66	52.8	196	175	145	400	100
YH5W-69	69	55.2	205	183	152	400	100
YH5W-72	72	57	214	191	158	400	100
YH5W-75	75	60	223	199	165	400	100
YH5W-84	84	67.2	244	218	181	400	100
YH5W-90	90	70	249	222	184	600	100
YH5W-96	96	76	265	237	197	600	100
YH5W-108	108	84	298	266	221	600	100
YH5W-120	120	98	330	295	245	600	100

Polymeric housed metal-oxide surge
Arrester without gaps
Nominal discharge current 10 kA (export)

Type	MOA Rated Voltage	MCOV	Current impulse Residual Voltage			2ms rectangular Current impulse withstand	4/10µs high Current impulse withstand
Type	MOA Rated Voltage	MCOV	1/10µs steep Current impulse	8/20µs lightning current impulse	30/60µs swiching current impulse	2ms rectangular Current impulse withstand	4/10µs high Current impulse withstand
	kV(rms)	kV(rms)	kV(crest)	kV(crest)	kV(crest)	A(crest)	kA(crest)
YH10W-3	3	2.55	11.3	9	8.9	250	100
YH10W-6	6	5.1	22.6	18	16.8	250	100
YH10W-9	9	7.65	33.7	27	23.8	250	100
YH10W-10	10	8.4	36	30	23	250	100
YH10W-11	11	9.4	40	33	30	250	100
YH10W-12	12	10.2	42.2	36	27	250	100
YH10W-15	15	12.7	51	45	38.5	250	100
YH10W-18	18	15.3	61.5	54	46.2	250	100
YH10W-21	21	17.0	71.8	63	54.2	250	100
YH10W-24	24	19.5	82	72	62	250	100
YH10W-27	27	22.0	92	81	69.8	250	100
YH10W-30	30	24.4	102	90	79	250	100
YH10W-33	33	27.5	112	99	86.7	250	100
YH10W-36	36	29.0	123	108	92.4	250	100
YH10W-39	39	31.5	117	103	94	400	100
YH10W-42	42	33.6	126	111	101	400	100
YH10W-45	45	36.5	128	119	102	400	100
YH10W-48	48	39	139	127	110	400	100
YH10W-51	51	40.8	151	135	115	400	100
YH10W-54	54	42	160	143	119	400	100
HY10W-60	60	48	178	159	132	400	100
YH10W-66	66	52.8	196	175	145	400	100
YH10W-69	69	55.2	205	183	152	400	100
YH10W-72	72	57	214	191	158	400	100
YH10W-75	75	60	223	199	165	400	100
YH10W-84	84	67.2	244	218	181	400	100
YH10W-90	90	70	249	222	184	600	100
YH10W-96	96	76	265	237	197	600	100
YH10W-108	108	84	298	266	221	600	100
YH10W-120	120	98	330	295	245	600	100

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