High Voltage Automatic Vacuum Circuit Breaker 12kv

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Quick Details

Product Name:

High Voltage Automatic Vacuum Circuit Breaker 12kv

Model NO.:

JG-120

Certification:

ISO9001-2000

Function:

Circuit-Breaker Failure Protection

Type:

Circuit Breaker

Poles Number:

Structure:

ACB

Installation:

Fixed

Arc-extinguishing Medium:

Vacuum

Speed:

High-Speed Circuit Breaker

Operation:

Automatic

Breaking Capacity:

High Voltage Circuit Breakers

Transport Package:

Wooden Craft

Origin:

China

Product Details

VACUUM INTERRUPTER

High current vacuum breaker element
630 or 1250A continuous line load
20 or 25kA fault current in max 3 sec
Bushings of epoxy with silicone surface
Integrated and synchronized air break switch
Attachment points for down pole mounted airbreak switch handle
Visible open points on all 3-phases
Integrated 3x phase current transformers
Integrated 1x core balance CT for low earth faults

DESCRIPTION	JG-120	JG-120
Rated maximum voltage	12 kV	12 kV
Rated basic impulse level, P>P	85 kV	85 kV
Rated basic impulse level, P>E	75 kV	75 kV
Power frequency withstand, Dry	50 kV	50 kV
Power frequency withstand, Wet	45kV	45kV

DESCRIPTION	12	12
Rated continuous current	630 A	1250 A
Rated fault making current	50 kA	50 kA
Rated fault breaking current	20 kA	25kA
Cable charging current	20 A	40 A
Line charging current	5 A	10 A
Rated fault duration time	3 s	3 s
Contact resistance, VCB	< 35 µΩ	< 35 µΩ
Contact resistance,ABI	< 60 µΩ	< 60 µΩ
Network frequency	50/60 Hz	50/60 Hz

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