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ZW7-40.5 1250A Outdoor Vacuum Circuit Breaker Power Station Type

Categories MCCB Circuit Breaker
Brand Name: Baikong
Model Number: ZW7-40.5
Certification: IEC,GB
Place of Origin: Sichuan,China
MOQ: 10 Pieces(MOQ)
Price: $5000-$10000/ Piece
Payment Terms: T/T,, L/C, Western Union
Supply Ability: 50000 Pieces/per Week
Delivery Time: 5...15Days OR To be negotiated
Packaging Details: wooden box/standard exporting carton
Product name: ZW7-40.5/1250A outdoor vacuum circuit breaker power station type
Arc extinguishing method: vacuum circuit breaker
Leakage protector type: 3P
Rated current: 630A
Color: customizable
Working pressure: to ground/relative 42/48
Rated frequency: 50Hz
Mechanical life: 20000 times
weight: 800kg
Number of poles: 1P 3P
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ZW7-40.5 1250A Outdoor Vacuum Circuit Breaker Power Station Type

ZW7-40.5/1250A outdoor vacuum circuit breaker power station type


product information


Product name: ZW7-40.5 outdoor vacuum circuit breaker

Category: high voltage components

Product introduction: ZN7-40.5 outdoor high-voltage true master circuit breaker is used in AC 50Hz, voltage 40.5kV three-phase power system, as a function of breaking and closing load current, overload current and short-circuit current.


Overview of ZW7-40.5 outdoor vacuum circuit breaker


The ZN7-40.5 outdoor high-voltage true master circuit breaker is used in a three-phase power system with an AC 50Hz and a voltage of 40.5kV. It is used for breaking and closing load currents, overload currents and short-circuit currents.


Main functions of ZW7-40.5 outdoor vacuum circuit breaker


a. Using vacuum arc extinguishing, strong breaking capacity, long electrical life, and mechanical life of 10,000 times;

b. Simple structure, rabbit maintenance, long period of non-overhaul

c. Good insulation performance, strong anti-fouling tree;

d. It can be equipped with spring or electromagnetic operating mechanism, with reliable mechanical performance and frequent operation; no fire and explosion hazards;

e. Built-in current transformer, the instructor's accuracy can reach 0.2 level, which can realize three mutual protection;

f. Condensation controller is included, which can keep the circuit breaker running reliably at a certain temperature and humidity.


Environmental conditions for use of ZW7-40.5 outdoor vacuum circuit breaker


a. Ambient air temperature: upper limit +40℃, lower limit -30℃;

b. Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level will be increased accordingly);

c. Wind pressure: no more than 700Pa (equivalent to a wind speed of 34m/s);

d. Amplitude: earthquake intensity 8 degrees;

e. Pollution level: Level III;

f. Daily temperature difference: no more than 25℃


The main technical parameters


Serial numberprojectunitdata
1Rated voltagekV40.5
2Rated insulation levelPower frequency withstand voltageDry95
Wet80
Lightning impulse withstand voltage (peak value)185
3Rated currentA1250,1600,2000
4Rated short-circuit breaking currentKA20,25,31.5
5Rated operating sequenceSplit -0.3s combined -180s combined
6Rated short-circuit current breaking timestimcs12
7Rated short-circuit making current (peak value)KA50,63,80
8Rated peak withstand current
9Rated short-time withstand currentKA20,25,31.5
10Rated short-circuit continuous currentS4
11Average opening speedm/s1.5±0.2
12Average closing speed0.7±0.2
13Bounce time of contact closingS≤2
14Three-phase combination (opening) gate synchronization time difference≤2
15Closing time≤150
16Opening time≤60
17Mechanical lifetimcs10000
18Rated operating voltage and rated voltage of auxiliary circuitVDC220,110,24
AC220,110,24
19DC resistance of each phase loop (without transformer)μΩ≤100
20Allowable wear thickness of dynamic and static contactsmm3
21weightkg800

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