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ZW32-12/24
Standard Specification

Main application  
    ZW32-12/24 series outdoor high voltage vacuum circuit breaker£¨here in after referred to as¡°Circuit breaker¡±£©For alternating current 50Hz¡¢rated voltage 12/24kV in three phase power system£¬As opening and closing load current¡¢use of overload current and short circuit current¡£The circuit breaker configurable reclosing controller can identify the current characteristics andIsolation of multiple auto reclosers or permanent faults£»Self providedPT£¨Voltage transformer£©As a power source£¬Become an intelligent circuit breaker with voltage and current signal output and control£¬PT provides power and can complete three-stage compound protection of overcurrent delay, inrush delay and short-circuit quick break¡£
Functional characteristics:
   It can be equipped with spring operating mechanism£¬With on-off load current¡¢Overload current and other basic functions£¬is ZW32-12/24 series basic type¡£The combination of circuit breaker and disconnector can form "combined circuit breaker" with obvious fracture£¨Here in after referred to as combined circuit breaker£©¡£Users can choose to use silicone rubber insulating sheath on the disconnector£¬The sheath has resistance the characteristics of rain, snow, sand and dirt £¬It can effectively avoid the freezing and oxidation of the disconnector¡£
   The circuit breaker can be equipped with lightning arrester£¬The arrester can be installed on either side of the in &out line according to the user's requirements£»The circuit breaker can be equipped with inrush current controller£¬let It has the functions of avoiding inrush current and breaking over current£¬The circuit breaker is equipped with 2-3 measuring or measuring transformers¡£
   Can use reclosing controller Constitute recloser type intelligent circuit breaker¡£Basic type and reclosing controller are suitable for places with easy access to power supply£¬PT type and reclosing controller are suitable for places without power supply£¬Intelligent circuit breaker applicable to radiation power supply and ring network power supply system£¬Help the system eliminate the instantaneous fault and automatically restore the power supply£¬and also can Isolate permanent faults£¬Realize distribution net automation¡£
   Intelligent circuit breaker has 1-3 times reclosing functions£¬And recloser parameters can be adjusted¡£
   The intelligent circuit breaker has the functions of closing inrush current control, over-current protection and short-circuit quick break three section compound protection, and the reference data can be continuously adjusted
  The intelligent circuit breaker has the function of small current grounding protection, and the reference data can be continuously adjusted.  It can not only realize wired remote control, but also realize wireless remote control under the pole.
   It can be equipped with voltage transformer, which takes power from the high voltage side of the incoming line£¬It can be provided to itself or other control equipment 220V¡¢110V¡¢100V as required£¬The circuit breaker can be used for line voltage monitoring£¬When overvoltage or undervoltage occurs, the controller automatically disconnects the circuit breaker£¬It can be widely used in the grid connection and branch out of the main power grid to realize the network monitoring and automatic fault isolation£¬The circuit breaker (metering type) can output voltage and current signals with class 0.2 accuracy, which is an ideal choice for simple metering switch in rural power grid substation.  It can be equipped with PT to charge for the battery£¬In the state of voltage loss, it can store energy for many times, open and close, and provide the working voltage of external equipment£¬It has the functions of closing inrush current control, over-current protection and short-circuit quick break three section composite protection£¬The protection reference data can be continuously set by the user£¬let will do realize wired remote control or wireless remote control under the pole.

 

ZW32-12 technology reference data


Part No.

Project

unit

reference data

1

Rated voltage

kV

12

2

Rated current

A

630

3

Rated frequency

Hz

50

4

Rated short-circuit breaking current

kA

20

5

Rated peak withstand current£¨Peak value£©

kA

50

6

Rated short-time withstand current

kA

20

7

Rated short-circuit making current£¨Peak value£©

kA

50

8

Mechanical life

timesr

10000

9

Rated short circuit breaking current breaking times

times

30

10

Power frequency withstand voltage£¨1min£©£¬phase to phase/Right ground/Fracture

kV

42/48

11

Lightning impulse withstand voltage£¨Peak value£©phase to phase/Right ground/Fracture

kV

75/85

12

Two circuit 1min £¬Power frequency withstand voltage

kV

2

 

ZW32-24 technology reference data


Part No.

project

unit

Reference data

1

Rated voltage

kV

24

2

Rated current

A

630

3

Rated frequency

Hz

50

4

Rated short-circuit breaking current

kA

20

5

Rated peak withstand current£¨peak value£©

kA

50

6

Rated short-time withstand current

kA

20

7

Rated short-circuit on-off current£¨peak value£©

kA

50

8

Mechanical life

´Î

10000

9

Rated short circuit breaking current breaking times

´Î

30

10

Power frequency withstand voltage£¨1min£©,phase to phase/to ground/Fracture

kV

50/60

11

Lightning impulse withstand voltage£¨peak value£©phase to phase/to ground/Fracture

kV

125/145

12

Two circuit 1min Power frequency withstand voltage

kV

2

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