Surge Arresters

IEEE Normal Duty Surge Arrester

IEEE overvoltage load surge arresters are suitable for outdoor AC 48-62Hz and meet the requirements of power distribution systems of different voltage levels under IEEE standards.

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Product Overview

IEEE overvoltage load surge arresters are connected in parallel with the protected electrical equipment to limit lightning overvoltages, switching overvoltages, etc., thereby protecting the high-voltage electrical equipment from overvoltage damage.

The surge arrester is a composite-jacketed metal oxide surge arrester, which has advantages such as large current capacity, large protection margin, strong pollution resistance, small size, light weight, and convenient installation.

Note: Product parameters and related illustrations are for reference only. The actual delivered product shall prevail.

Technical Specifications

Serial Number	project				unit	9kV	12kV	15kV	18kV	21kV	24kV	27kV	30kV	36kV
1	Rated voltage				kV	9	12	15	18	twenty one	twenty four	27	30	36
2	Continuous operating voltage				kV	7.65	10.2	12.7	15.3	17	19.5	twenty two	24.4	29
3	Nominal discharge current				kA	10	10	10	10	10	10	10	10	10
4	DC reference voltage (1mA)				kV	13-14.1	17.2-18.9	21.5-23	24.5-27.5	28.7-31	33-36	37.2-40.5	43-46	51.6-55
5	Residual pressure ≤	Residual voltage under steep wave impulse current		10kA	kVp	29.3	39.1	48.9	56	66	76	85	95.7	114
		Residual voltage under lightning impulse current		10kA		25.5	34	42.5	52	58	67	74	85	102
		Residual voltage under operating inrush current		500A		21.4	29	36.9	43.5	49	51.7	58	64.5	76.9
6	2ms square wave inrush current				A	400	400	400	400	400	400	400	400	400
7	4/10 High Current Impulse Withstand Current				kA	100	100	100	100	100	100	100	100	100
8	outer insulation withstand strength		Lightning impulse withstand voltage		kV	47	63	78	94	110	125	141	156	188
8	outer insulation withstand strength		Short-time AC moisture withstand voltage		kV	twenty four	32	39	47	55	63	71	78	94
9	Partial discharge ≤				pC	10	10	10	10	10	10	10	10	10
10	creepage distance				mm	371	476	628	628	742	905	1019	1120	1265
11	Surge arrester size		Insulator height L		mm	124	135	194	194	214	284	304	316	377
			Umbrella diameter D/d		mm	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94	Φ124/Φ94
			Number of umbrellas		indivual	5	7	9	9	11	13	15	17	19
12	resistor diameter				mm	Φ44	Φ44	Φ44	Φ44	Φ44	Φ44	Φ44	Φ44	Φ44