Indoor Electric Earthing Switch

The Sangao durable Indoor Electric Earthing Switch is an assembled product that meets the requirements of GB1985-2004 "High Voltage AC Isolating Switches and Grounding Switches" and IEC62271-102:2002 standards in terms of performance. This product is suitable for 24kV, three-phase AC, 50 (60) Hz power systems; Capable of short-circuit closure, protecting electrical equipment from damage, suitable for grounding protection during maintenance of high-voltage switchgear.

The grounding switch of Sangao Indoor Electric Earthing Switch with fault closing capability can reliably close short-circuit currents, thereby protecting operators and switchgear in case of misoperation.

There are two types of grounding switches:

-Independent grounding switch

-Grounding switch with combined current transformer.

The combination current transformer forms the installation base for the grounding switch contacts, thereby reducing the space requirements inside the cabinet.

Each grounding switch is equipped with a spring operated device, which ensures that the closing ability is independent of the operating speed.

Except for a few models equipped with combined current transformers, the control side and current direction of the grounding switch can usually be selected without restrictions.

Why choose Sangao?

Famous Chinese brands

Global service network provides support for customers

Continuous development to meet ever-changing customer needs

Conditions of Use

Environmental temperature: upper limit+45 ° C, lower limit -25 ° C

Altitude not exceeding 1000m

Daily average relative humidity: ≤ 95%. Monthly average relative humidity: ≤ 90%

Earthquake intensity not exceeding 8 degrees

Pollution level: Level II

Special circumstances: Please specify when placing an order.

Ordering Information

When ordering an Indoor Electric Earthing Switch, please indicate the product model, left and right operation, distance, and whether the indicator is live (please indicate the indicator model).

Does the flexible connection length need to be extended (standard length L=400mm).

If you have any special requirements, please contact Green Power to develop detailed specifications.

Main parameters:

Rated voltage: 24KV

Rated short-time withstand current: 31.5KA

Rated short-circuit duration: 4S

Rated short-circuit current: 80KA

Rated peak withstand current: 80KA

Rated insulation level:

Rated short-time power frequency withstand voltage: 65KV (relative phase)

Rated lightning impulse withstand voltage: 125KV

Mechanical lifespan: 2000 cycles