Summary

KYN28A-12 Type indoor AC metal armored medium switchgear. It is suitable for three-phase AC rated voltage 12kV and rated frequency 50Hz power system, which is used to accept and distribute electric energy and control, protect and monitor the circuit.

Compliance criteria

GB3906 3.6 ~ 40.5kV AC metal enclosed switchgear and controlgear

GB 11022-89 general specification for high voltage switchgear

IEC298 "AC metal enclosed switchgear and control equipment with rated voltage above 1kV and below 50kV"

Dl404-97 technical conditions for ordering indoor AC high voltage switchgear

Model meaning

Product features

The switchgear is designed according to the armored metal enclosed switchgear in gb3906-91. The whole is composed of cabinet body and central extractable parts (i.e. handcart) (see Figure). The cabinet is divided into four separate compartments. The protection level of the enclosure is IP4X, and the protection level of each compartment and circuit breaker room is IP2X when the door is opened. It has overhead incoming and outgoing lines, cable incoming and outgoing lines and other functional schemes, and forms a complete set of power distribution system device after arrangement and combination. The switchgear can be installed, debugged and maintained from the front, so it can be back-to-back, double arranged and installed against the wall, which improves the safety, flexibility and reduces the floor area of the switchgear.

Normal service conditions

Ambient air temperature: high temperature + 40 ℃. Low temperature - 15 ° C.

Relative humidity: daily average relative humidity: ≤ 95%; daily average steam pressure: ≤ 2.2kpa; monthly average relative humidity: ≤ 90%; monthly average steam power: ≤ 1.8kpa

Altitude: below 1000m.

Seismic intensity: no more than 8 degrees.

The surrounding air shall not be obviously polluted by corrosive or combustible gas, water vapor, etc

No severe vibration place

When it is used beyond the normal conditions specified in GB3906, it shall be negotiated between the user and the company.

Installation dimension