0
outdoor vacuum circuit breaker

10kV MV Outdoor Vacuum Circuit Breaker/VCB Switch on Pole, HZW-12/630

EXHZW-12/630
Delivery:
FOB
minimum order:
1 piece
Quantity:
Contact Now
add to cart

1. General description

EXHZW 12/630 type outdoor high voltage double power supply automatic switching device is composed of two parts of a high voltage vacuum circuit breaker and intelligent controller. Applicable to AC 50Hz, rated voltage 12kV, rated current 630A, dual power supply system. When a power supply power failure or undervoltage automatic switching to another normal power supply, reliable guarantee the continuity of electricity. At the same time has the short circuit and transition interlock functions such as protection, effectively avoid the unnecessary power supply shock again when load failure. Power failure occurs in the normal power supply, automatic switching device can complete the standby power supply, to ensure safety and reliability. Also can choose to switch between two powers according to the needs of load. Particularly suitable for the important places do not allow failure, as important to ensure continuous power supply of the electric control device. As a new generation of new design, perfect in performance, safe and reliable, high degree of automation, wide range of use of the cast from the replace dual power automatic switch products. Products to ensure the complete isolation of two high voltage power supplies in the design, the mechanical and electrical interlocking perfect and reliable, so it has very high security and reliability. The product is suitable for power supply reliability and safety requirements of high-power electric power users, as a dual power supply system of control and protection devices.

Products are widely used in oil fields, mines, metallurgy, chemical industry, railways, communications, machinery and so on 12kV distribution line, industrial and mining enterprises 12kV line.

2. Product picture of double power supply automatic switching device

3. Main technical parameter

Item

Unit

Data

Rated voltage

kV

13,12,10,6

Rated insulation level 1min P.F. withstand voltage

kV

dry, isolating fracture 42/48,  wet, 34

Rated insulation level lightning impulse withstand voltage(peak)

kV

75/78 isolating fracture

Rated frequency

Hz

50/60

Rated current

A

630, 1000, 1250

Rated short-circuit breaking current

kA

12.5, 16, 20, 25

Rated operating sequence

O-0.3s-CO-180s-CO

Rated short-circuit breaking current breaking times

time

30

Rated short-circuit making current

kA

31.5, 40, 50, 63

Rated peak withstand current

kA

31.5, 40, 50, 63

Rated short time withstand current

kA

12.5, 16, 20, 25

Rated short circuit duration

s

5 (spring), 4 (permanent-magnet)

Opening time the highest operating voltage

ms

30-80

Opening time rated operating voltage

ms

30-80

Opening time the lowest operating voltage

ms

40-100

Closing time

ms

40-100

Full-breaking time

ms

≤100

Mechanical life time

time

10000 (spring), 30000 (permanent-magnet)

Closing power

J

≤8

Rated input efficiency of energy-stored motor

W

≤70

Energy-stored time under rated voltage

ms

≤40

Rated operating voltage and rated voltage of auxiliary circuit

V

DC,AC220

Over-current release rated current

A

5

Over-current release release current accurancy

%

±10

N.W.

kg

254 (spring), 235 (permanent-magnet)

Send Message