ВВ-KES-2500

A vacuum circuit breaker is a high-voltage circuit breaker where the arc extinguishing medium is vacuum. These circuit breakers are designed to switch on and off electric current, and they can be under load or short-circuit currents can flow through them. The main advantage of vacuum circuit breakers over oil circuit breakers is their switching life, high reliability and explosion and fire safety.

Vacuum circuit breakers type VV - AE- 6 ÷ 35 kV.

Switches of the VV-AE type are intended for switching electric circuits, in normal and emergency modes, in three-phase alternating current networks with a frequency of 50 Hz and a rated voltage from 6 to 35 kV. Switches of the VV-AE type are used in switchgear.
In all cases, installation of switches of the VV-AE type is permitted only upon agreement with the manufacturer.

At the customer's request, the switches can be equipped with drives with controls, such as: a closing solenoid (YAC) and a closing solenoid (YAT) for a voltage of 220V (110V) direct or 230V (120V) alternating current and an additional set of electromagnets with built-in releases:

• electromagnet with power supply from an independent source (YAV), rated
  voltage 220V DC or 230V, 120V and 100V AC;
• current releases for bypass circuits (YAA) of 3 A or 5 A.

Main parameters of BB-AE:

Nominal voltage, kV: 10

Rated current, A: 630 1250 1600 2000 2500 3150 4000

Rated breaking current, kA: 20 25 31.5 40 50

Rated switching currents, kA:

• effective value of the periodic component 125

Proper turn-on time, ms: no more than 50

Proper shutdown time, ms: 30

Current consumption of the shutdown electromagnet, A no more than: at ~230 V - 1.5, at =220 V - 1.0

Current consumption of the winding motor of the closing spring, A, no more than:

• launcher-1.5
• worker-1.0

Independent power supply (YAV) cut-off solenoid on request

Current releases for circuits with bypass for 3A or 5A (YAA): on request

Winding time of the closing spring, s: no more than 15

Resource for mechanical and switching resistance, cycles ВО: 10000

Structurally, the switch module consists of:

• a base that includes a welded frame with a switch shaft, a trip
  spring and an oil buffer;
• three poles;
• spring-motor drive.

By the nature of the structural connection with the drive, the switches have a separate drive connected by a mechanical transmission. The switches have a high degree of unification in design.