21kv Polymer Surge Arrester, Lightning Arrester, Surge Protection

21kv Polymer Surge Arrester, Lightning Arrester, Surge Protection image

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Quick Details

Product Name:

21kv Polymer Surge Arrester, Lightning Arrester, Surge Protection

Model NO.:

21kv Polymer Surge Arreste

Brand:

Vicj

Material:

ZnO

Shape:

Cuboid

Operation Voltage:

High Voltage

Size:

Meidum

Application:

Power Plants

Installation:

Tandem Arrester

Structure:

Zinc Oxide Arrester

Type:

Power Source Arrester

Trademark:

vicj

Transport Package:

Origin:

China

HS Code:

85354000

Product Details

1. Small size and light

2. High square wave current impulse
3. Have a good inner management for electric potential
4. Good inner insulation lever to absorb lightning impulse and operation impulse

Type		5W-3	5W-6	5W-9	5W-20	5W-30	10W-3	10W-6	10W-9	10W-20	10W-30
Highest nominal system voltage (kV, r.m.s)		3.3/3.6	6.6/7.25	11/12.0	22/24.2	33/36	3.3/3.6	6.6/7.25	11/12.0	22/24	33/36
Rated voltage of Surge Arrester (kV)		3	6	9	20	30	3	6	9	20	30
Min. continuous operating voltage (kV)		2.55	5.1	7.65	19.5	24.4	2.55	5.1	7.65	17	24.4
AC reference voltage ≥kV		5	8	18	35	65	5	8	18	35	65
Max. residual	Under operating impulse current	7.7	15.4	23.1	53.9	76.5	7.7	15.4	≤29	53.9	≤90
voltage of	Under operating impulse current	7.7	15.4	23.1	53.9	76.5	7.7	15.4	≤29	53.9	≤90
discharge	Under 8/20μs lightning impulse current	9	18	27	63	90	9	18	30.5	63	95
(peak, kV)	Under steep impulse current	9.5	19	28.5	66.5	95	9.5	19	≤32	66.5	≤99
2ms rectangular impulse withstand current (A)		100					100
4/10μs highest impulse withstand current (kA)		65					65
Min. power frequency	Wet	20	30	≤50	60	80	20	≤50	30	60	90
withstand voltage (kV, rms)	Dry	24	35	≤70	80	90	24	35	≤70	80	95
Impulse withstand voltage (kV, crest)		48	70	95	125	170	48	70	95	125	170
Pressure relief	Highest current for 0.2s	16					16
class (kA, Crest)	Lowest current for 0.5s	0.8					0.8
Creepage distance (mm)			250	390	550	900	180	250	390	550	900

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