Indoor Disconnector Switch

The SYHF indoor isolation switch is designed specifically for medium voltage indoor switchgear systems, typically operating at 12kV/24kV, and is used to isolate circuits during maintenance or faults. It has visible breakpoints, reliable interlocking mechanisms, and high dielectric strength, ensuring the safe operation and system reliability of substations, industrial control rooms, and distribution cabinets.

Our indoor isolators comply with IEC 62271-102 and GB 1985 standards, making them ideal for high voltage environments that require safe and frequent no load switching.

Interior disconnect switch application:

The interior disconnect switch is a device for connecting, disconnecting and grounding circuits without load. The device is suitable for traction substation and industry. The disconnector is installed in the gate room to complete various functions, such as isolating the positive and negative ends of the transformer/rectifier assembly, isolating the feeder and power supply, coupling and disconnecting various traction sections. Due to its modular design, the interior disconnect switch can provide a variety of different combinations.

The interior disconnect switch has two configurations:

With a motor driver for disconnectors and earthing switches

With two independent motor drivers: one for disconnector and one for grounding switch

Indoor Disconnector Switch Advantages:

High short circuit resistance

Silver plated contact

Self cleaning contact

Motor or manual operation

Compact structure

Standards: pn-en 50123-2:2013, pn-en 50123-3:2003