Susol VCB for Generator Applications

Susol VCB for Generator Applications

The Susol Vacuum Circuit Breaker (VCB) for Generator Applications is designed with high dielectric strength, superior interrupting performance, and a durable operating mechanism for reliable generator protection. Rated at 17.5 kV, with current ratings up to 5000 A (fixed) and 4000 A (withdrawable), it provides interrupting capabilities of 50 kA for system-source faults and 25 kA for generator-source faults. Compliant with IEC/IEEE 62271-37-013:2015 and backed by KEMA short-circuit certification, it delivers reliable protection between generators and transformers.


Rated Voltage
17.5 kV
Rated Current
4000 - 5000 A
Fault Interrupting Current
50 kA System-Source 25 kA Generator-Source

Key Features

01

Protection

The breaker provides interrupting capabilities of 50 kA for system-source faults and 25 kA for generator-source faults. It complies with IEC/IEEE 62271-37-013:2015 and holds KEMA short-circuit certification for generator protection applications.

02

Convenience

Fixed and withdrawable configurations accommodate different installation requirements. Various AC/DC control voltages and accessories, including position switches, support flexible system configuration.

03

Reliability

An optimized natural-cooling airflow structure reduces concerns about overheating caused by cooling fan failure. An operating mechanism rated for 10000 no-load mechanical operations provides durability for repeated operation.

04

Safety

Insulation performance includes a power-frequency withstand voltage of 50 kV and a lightning impulse withstand voltage of 110 kV. Options such as an under-voltage trip device (UVT), keylocks, and plug interlocks support safe operation.

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Lineup

P Type

H Type

Model

VH-17P50D50

VH-17H50D40

Rated Voltage

17.5 kV

17.5 kV

Rated Current

5000 A

4000 A

System-Source Fault Interrupting Current

50 kA

50 kA

Generator-Source Fault Interrupting Current

25 kA

25 kA

Installation Type

Fixed

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