Power station outdoor HV vacuum circuit breaker

Outdoor high vacuum circuit breaker phase AC 50Hz, rated voltage of 40.5kV outdoor high-voltage electrical equipment.Spring mechanism attached to or electromagnetic actuator can remote control electrical sub-, sub-gate can also be storage place
manually,manually opening and closing. design performance meet GB1984-2003AC voltage circuit breaker as the national standard, and meet IEC-56high voltage AC circuit breakers IEC standards.

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General:

Vacuum circuit breaker is mainly used for outdoor 35kV power transmission system control and protection also applies to urban and rural power distribution networks and industrial and mining enterprises in the normal operation and short circuit protection purposes. The product overall structure of the pillars for the vase style; on insulator mounted within the vacuum interrupter, the main column under the porcelain vase porcelain vase. for frequent operation place. and have good sealing, anti-aging, high pressure, no burning, no explosion, long service life, installation and maintenance and convenient.

Service Environment

  • Ambient Temperature:-30℃~+40℃

  • Altitude:≤1000m (if the altitude increased, then the insulation must be higher)

  • Wind Pressure: no more than 700Pa (equal to 34m/s wind speed)

  • Earthquake Level: no greater than 8

  • Pollution Level: IV

  • Maximum Temperature Drop: no more than 25℃

Key Feature

  • Porcelain pillar structure, waterproof transmission box, new type vacuum arc extinguishing chamber

  • 2-3 current transformers, four coils per phase, according to user needs to choose changes

  • Can be equipped with CD10 electromagnetic mechanism or CT19 spring mechanism

  • Good breaking performance, high reliability, long life, small maintenance workload

  • No oil, no gasification, economic and environmental protection;

Technical Data


Name

Unit

Data

Rated Voltage

kV

40.5

Rated Insulation Level

1Min Power Frequency withstand Voltage

Dry

95

Wet

80

Lightning Impulse withstand Voltage(Peak)


185

Rated Current

A

630;1250;1600;2000

Rated Short-circuit Breaking Current

kA

20;25;31.5;40

Rated Operating Sequence


0-0.3s-CO-180s-CO

Rated Short-circuit Opening Times

times

20

Rated Short-circuit Closing Current(Peak)

kA

50:63:80

Rated Peak withstand Current

20;25;31.5

Rated Short Time withstand Current

kA

31.5

Rated Short-circuit Duration

s

4

Average Closing Speed

m/s

0.7±0.2

Average Opening Speed

1.5±0.2

Closing Time

≤150

Opening Time

≤60

Mechanical Life

times

10000

Rated Operating Voltage and Auxiliary Circuit Rated Voltage

V

AC/DC110/220

DC Current Resistance of Each Phase (Without transformer)

μΩ

≤100

Weight

KG

1100

Drawing

ZW7-40.5 Vacuum Circuit Breaker.pngZW7-40.5 Vacuum Circuit Breaker11.png


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