AC high voltage vacuum contactor

Unit: SET

Size: CKG3-7.2J/D

Price: FOB SHANGHAI

1. Product Introduction

This series of products is a national joint design model, suitable for direct or long-distance switching on and off of the main circuit and frequent control in power systems with AC 50~60Hz, main circuit rated voltage 12kV, and rated current 160~1250A respectively Capacitive loads, AC motors, transformers and other electrical equipment. Widely used in power grid reactive power compensation, petrochemical, metallurgy, water supply and drainage treatment, coal mine underground equipment and other occasions. The product is used at an altitude of no more than 1000 meters.

2. Main technical parameters

host

electricity

road

Rated working voltage (Ue)

kV

12

Rated operating current (Ie)

A

160~1250

Rated frequency (fr)

Hz

50~60

Rated making capacity

A

10 Yes (AC-4)

Rated breaking capacity

A

8 Yes (AC-4)

Rated short-time withstand current

A

10 Ie

Rated peak withstand current

A

25 Ie

Rated short circuit duration

s

4

Ultimate breaking capacity

6.3kA, 3 times

Power frequency withstand voltage

Alternately, relatively

kV

42

vacuum fracture

kV

42

Lightning impulse withstand voltage

kV

75

Rated breaking current of a capacitor bank (category C2)

A

160

Control circuit

Rated voltage1 ( Us)

IN

AC or DC.110/220/380

Rated power (Ps)

electric hold

AND

≤1000/100 (pull in/hold)

mechanical hold

≤900/600 (closing/opening)

auxiliary circuit

form

Three openings and three closings to six openings and five closings

rated value

AC380V/5A、DC380V/1A

Power frequency withstand voltage of control circuit and auxiliary circuit to ground

kV

2

Rated operating frequency

long-term or mechanically maintained

times/h

300

short term

times/h

600

Mechanical Life 2

Ten thousand times

100

Electrical life

Ten thousand times

25(AC-3)、10(AC-4)

mechanical

characteristic

Closing time

ms

≤200

Intrinsic opening time

ms

≤100 electrical hold, ≤60 mechanical hold

Three phases out of phase

ms

≤2

Closing bounce

ms

≤5

Note: 1. The rated control voltage can also be customized according to user needs.

      2. For the mechanical holding type, the locking device needs to be replaced every 100,000 times.

      3. The product can be customized to 1250A