Porcelain Surge Arrester for Distribution

Best Price High Voltage Equipment Porcelain Metal Oxide Surge Arrester ZnO Gapless Lightning Arrester 21kv 10ka

Best Price High Voltage Equipment Porcelain Metal Oxide Surge Arrester ZnO Gapless Lightning Arrester 21kv 10ka

Zinc Oxide Varistor
Wet Process Porcelain Housing
3-36kV Reating
Nominal Discharge Current: 10kA | 5kA
Product description: Wortai Electric is a China manufacturer & Supplier of Porcelain Surge Arrester for Distribution, the voltage rating from 3kV to 36kV, the nominal Discharge Current is available for both 10kA and 5kA,
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Production Description

Wortai Electric is a China manufacturer & Supplier of Porcelain Surge Arrester for Distribution with with over 10 years experience, the voltage rating from 3kV to 36kV, the nominal Discharge Current is available for both 10kA and 5kA, OEM and ODM services are welcome.

M.V. Surge Arresters are used to protect transformers and other equipments in station and distribution systems against the damage by atmospheric (especially lightning effects) and operational conditions.Metal oxides surge arresters without gaps are designed to prevent probable damages in the case of typical surges in energy systems while it has no negative effect on energy systems in normal operation voltage. This special feature of gapless arresters originating from non-linear characteristics of metal-oxide varistors between voltage and current scales. The non-linear feature is much higher compared to SiC surge arresters.

Product Parameters

Heavy duty -10kA Series

Arrester type	Rated voltage Ur (kV)	Max. continues operating voltage		Residual Voltage (kV)
		as per IEC	as per ANSI/IEEE	1/10 μs Steep current impuse	8/20μs Lightning current impulse	30/60μs Switching current impulse
		Uc (kV)	MCOV (kV)	1/10 μs Steep current impuse	8/20μs Lightning current impulse	30/60μs Switching current impulse
Y10W-3/9	3	2.4	2.6	11.3	9	8.9
Y10W-6/18	6	4.8	5.1	20.5	18	16
Y10W-9/27	9	7.2	7.65	31	27	24
Y10W-10/30	10	8.0	8.4	34.1	30	26.6
Y10W-11/33	11	8.8	9.3	38	33	29
Y10W-12/36	12	9.6	10.2	41.5	36	30.6
Y10W-15/45	15	12.0	12.7	52	45	38.3
Y10W-18/54	18	14.4	15.3	62	54	46
Y10W-21/63	21	16.8	17.0	72.5	63	53.5
Y10W-24/72	24	19.2	19.5	82.5	72	61.2
Y10W-27/81	27	21.6	22.0	93.2	81	69
Y10W-30/90	30	24.0	24.4	104	90	80
Y10W-33/99	33	26.4	28.0	113.8	99	84.2
Y10W-36/108	36	28.8	29.0	124.2	108	91.8

Normal duty -5kA Series

Arrester type	Rated voltage Ur (kV)	Max. continues operating voltage		Residual Voltage (kV)
		as per IEC	as per ANSI/IEEE	1/10 μs Steep current impuse	8/20μs Lightning current impulse	30/60μs Switching current impulse
		Uc (kV)	MCOV (kV)	1/10 μs Steep current impuse	8/20μs Lightning current impulse	30/60μs Switching current impulse
Y5W-3/9	3	2.4	2.6	11.3	9	8.9
Y5W-6/18	6	4.8	5.1	20.5	18	16
Y5W-9/27	9	7.2	7.65	31	27	24
Y5W-10/30	10	8.0	8.4	34.1	30	26.6
Y5W-11/33	11	8.8	9.3	38	33	29
Y5W-12/36	12	9.6	10.2	41.5	36	30.6
Y5W-15/45	15	12.0	12.7	52	45	38.3
Y5W-18/54	18	14.4	15.3	62	54	46
Y5W-21/63	21	16.8	17.0	72.5	63	53.5
Y5W-24/72	24	19.2	19.5	82.5	72	61.2
Y5W-27/81	27	21.6	22.0	93.2	81	69
Y5W-30/90	30	24.0	24.4	104	90	80
Y5W-33/99	33	26.4	28.0	113.8	99	84.2
Y5W-36/108	36	28.8	29.0	124.2	108	91.8

※ YH*W type surge arresters are normally equipped with an arrester disconnector connected in series: In case of failure of the arrester due to discharges above rated values, it disconnects the failed arrester from the system, thereby preventing its being a continuous source of fault, besides, enabling the site people to easily find the failed arrester.
※The continuous operating voltages Uc (as per IEC) and MCOV (as per ANSI) differ only due to deviations in type test procedures.
※ For Specification or application beyond the range listed here,please contact us for detail.