CJBKP20 EN50181 11kV 12kV 15kV 24kV 25kV 33kV 35kV 36kV 630A 1250A Dead Break Separable Surge Arrester Connectors (Outside Cone Type)

Product Description

CJBKP20 Separable surge arrester conectors (outside cone type)

Surge arrester designed to protect medium voltage components, including transformers, equipment, cable and accessories from high voltage surges resulting from lightning or switching.
CJBKP20 application for coupling with 24kV separable T connector CJB20-630, CJB20-1250.

 

Technical Data

5kA Nominal discharge current

Test Item	Unit	CJBP20 / CJBKP20	CJBP20 / CJBKP20	CJBKP30	CJBKP30	CJBKP30
		YH5WZ-26/66	YH5W-30/85	YH5WZ-34/85	YH5W-36/121	YH5W-45/118
Rated voltage ( Ur)	kV	26	30	34	36	45
Continuous operating voltage (Uc)	kV	20.8	24	27.2	28.8	36
AC reference voltage (U1mA)	kV	U1mA AC≥ 26	U1mA AC≥ 30	U1mA AC≥ 34	U1mA AC≥ 36	U1mA AC≥ 45
DC reference voltage (U1mA)	kV	≥37	≥43	≥48	≥51.6	≥64.5
Leakage current under DC 0.75U1mA	μA	≤50	≤50	≤50	≤50	≤50
Nominal discharge current	kA	5	5	5	5	5
Steep current impulse residual voltage (Peak value)	kV	≤76	≤98	≤95	≤139	≤136
8/20μs Lightning impulse residual voltage (Peak value)	kV	≤66	≤85	≤85	≤121	≤118
Switching impulse residual voltage (Peak value)	kV	≤56	≤72.2	≤75	≤103	≤100
Long-duration current impulse, 2ms	A	150	250	150	400	250
4/10μs high current impulse	kA	65	65	65	65	65
Partial discharge	-	21.8kV, ≤10pC	25.2kV, ≤10pC	28.6kV, ≤10pC	30.3kV, ≤10pC	37.8kV, ≤10pC
Height (h)	mm	286	318	345	345	420

 

10kA Nominal discharge current

Test Item	Unit	CJBP20, CJBKP20	CJBP20, CJBKP20	CJBP20, CJBKP20	CJBKP30	CJBKP30	CJBKP30
		YH10WZ-26/72	YH10WZ-30/85	YH10W-30/91	YH10WZ-34/95	YH10W-36/121	YH10W-45/127.5
Rated voltage ( Ur)	kV	26	30	30kV	34	36	45
Continuous operating voltage( Uc)	kV	20.8	24	24kV	27.2	28.8	36
AC reference voltage (U1mA)	kV	U1mA AC≥ 26	U1mA AC≥ 30	U1mA AC≥	U1mA AC≥ 34	U1mA AC≥ 36	U1mA AC≥ 45
DC reference voltage (U1mA)	kV	≥37	≥43	43	≥48	≥51.6	≥64.5
Leakage current under DC 0.75U1mA	μA	≤ 50μA	≤50	≤ 20	≤50	≤50	≤50
Nominal discharge current	kA	10	10	10	10	10	10
Steep current impulse residual voltage (Peak value)	kV	≤ 85	≤98	≤104	≤105	≤139	≤146.5
8/20μs Lightning impulse residual voltage (Peak value)	kV	≤ 72	≤85	≤91	≤95	≤121	≤127.5
Switching impulse residual voltage (Peak value)	kV	≤ 65	≤64.9	≤77	≤85	≤103	≤108.5
Long-duration current impulse, 2ms	A	400	400	350	400	400	400
4/10μs high current impulse	kA	100	100	65	100	100	100
Partial discharge	-	21.8kV, ≤10pC	25.2kV, ≤10pC	25.2kV, ≤10pC	28.6kV, ≤10pC	30.3kV, ≤10pC	37.8kV, ≤10pC
Height (h)	mm	286	318	318	345	345	450