Description of KYN28-12 high voltage cabinet for induction melting furnace

1. The high voltage cabinet is a hand-held central switchgear

2. The high voltage cabinet is composed of VS1-12 vacuum circuit breaker, lightning arrester, high voltage isolation switch, voltage transformer, current transformer, transformer temperature display and gas protection.

3. The high-voltage cabinet is equipped with time-sharing meter, power factor meter, voltmeter and ammeter.

4. The switchgear should meet the requirements of five defenses:

Prevent mis-separation of circuit breakers

Prevent the load from pulling out the trolley

Prevent grounding knife from sending electricity

Prevent live grounding knife

Prevent accidental entry into the charging interval

5, control, measurement, protection

The control, measurement and protection adopt the microcomputer integrated protection device (using Beijing Sifang Lide products), and Party B is responsible for purchasing, designing the secondary schematic diagram and the microcomputer protection installation requirements to be installed in the switchgear (including wiring and debugging).

The intelligent display and control device is equipped on the switchgear. The intelligent display control device has dynamic analog display, voice anti-error prompt, temperature and humidity control, live display and lockout function, remote/local, split, energy storage and lighting operation.

6 control functions

The remote control operation can be performed by the remote control switch input command or communication mode. The switch cabinet input command can be used to operate the 10kV circuit breaker. The switch cabinet input command is defined as local operation. Remote control and local operation should have a switch switch.

7, switch cabinet structure

The switchgear cabinet should be an assembled frame structure with rivet joints, and has good interchangeability and sealing. The enclosure protection grade is not lower than IP4X. The protection level is IP2X when each small outdoor room and circuit breaker room door is open. The plate used for the switchgear shall be imported aluminum-zinc plate and high-quality cold-rolled steel plate. The cabinet shall be covered with aluminum-zinc plate not less than 2mm thick, and the thickness of the door plate and side seal plate shall be not less than 2.5mm cold-rolled steel plate. The switchgear is bent by a 2mm thick aluminum-zinc plate, not less than two folds. The bidder shall ensure that all components have sufficient strength to withstand the forces generated by short-circuit during transportation, installation and operation. damage.

8, wiring cabinet / outlet cabinet wiring

Cable down/out line