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Yangzhou Ke Yu Electric Power Co., Ltd.

Address: No. 97, Zhongxin Road, Automobile Industrial Park, Yizheng City, Yangzhou City
Phone: 0514-87520111

E-mali:keyudl09@126.com
Website: www.keyudl.com

KW32-12 type household high voltage intelligent spring air circuit breaker

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General introduction
KW32-12 outdoor high-voltage smart spring vacuum circuit breaker is a rated voltage of 12kV, 50Hz frequency three-phase AC circuit breakers, the product is the company developed an intelligent spring mechanism vacuum circuit breakers, mainly for investment Cut a variety of different types of load and frequent operation occasions, and has repeatedly broken short-circuit current capacity for substation and industrial and mining enterprises in the power distribution system for protection and control of the more applicable to the power sector transformation of the power grid.
 

Reference Standard                                                                                                          

GB1984
GB/T 11022
GB/T 311.1 
GB/T 3309
DL/T 593 
DL/T 402
AC high voltage circuit breaker
High-voltage switchgear and control equipment standard common technical requirements
High-voltage power transmission equipment with insulation
High-voltage switchgear at room temperature mechanical test
Common high-voltage switchgear ordering technical guidance
AC high voltage vacuum circuit breaker ordering technical conditions
 




 

 

The use of environmental conditions
◆Working temperature:-40~+70℃
◆Work environment humidity:0~95%
◆Place of work elevation:≤3000 m
◆Wind pressure:≤ 700 Pa
◆Ice thickness:≤10mm
◆External insulation contamination level:Ⅳ
◆seismic intensity:≤ 8°

Note: This product is not suitable for fire, explosion hazard, chemical corrosion and severe vibration and other places.

 

Model Description
Product model and meaning:

 

 

Features
◆Adopting three-phase strut structure, vacuum arc extinguishing, reliable breaking, contact wear small, maintenance-free;
◆Epoxy resin and silicone rubber composite insulation material, pressure and weather resistance, oil-free, SF6-free, environmentally friendly non-polluting;
◆The operating mechanism adopts the miniaturized spring operating mechanism, the power of the storage motor is small, the energy consumption of the closing and closing is low, and the reliability is high;
◆Can be configured with integrated isolation switch, with a clear visual disconnect, and with anti-error interlock.
 

 

Dimensions

 

 

Ontology technical parameter
Circuit breaker switch technical parameters 

number

Name

unit

Parameters

1

Rated voltage

kV

12

2

Rated current

A

630/1250

3

Rated frequency

Hz

50

4

Rated lightning impulse withstand voltage

kV

Ground 75 / fracture 85

5

Rated short-time power frequency withstand voltage(1min)

kV

Wet test 34, dry test 42 / fracture 48

6

Rated short-circuit breaking current

kA

20/25

7

Rated short circuit breaking times

Times

30

8

Rated thermal current(4s)

kA

20/25

9

Rated dynamic current stability

kA

50/63

10

Rated short-circuit current

kA

50/63

11

Mechanical life

Times

30000

12

Secondary circuit frequency withstand voltage(1min)

KV

2

13

Rated operating sequence

 

O-0.3S-CO-180S-CO

14

weight

KG

100

Mechanical characteristics parameters 

number

Name

unit

Parameters

1

stroke

mm

11±1

2

Contact distance

mm

9±1

3

Overtravel

mm

3±1

4

Closing time

ms

≤60

5

Opening time

ms

≤60

6

Closing different points

ms

≤2

7

Closing bounce

mm

≤2

8

Average opening speed

m/s

1.0±0.2

9

Average closing speed

m/s

0.6±0.2

10

Mechanical number

Times

30000

11

Main circuit resistance

μΩ

≤80

12

Main circuit resistance (with isolation switch)

μΩ

≤ 180

  

Features
Telemetry function: can detect voltage, current and other AC analog and battery voltage, temperature and other DC analog.
Remote signal function: can detect the switch status signal, switch energy storage signal, battery low voltage alarm and other status information, and with dual-position remote signal processing capabilities, support for remote transmission of variable bit priority transmission.
Remote control function: RF remote control can be closed and closed. With local / remote selector switch, you can access the remote control station master remote opening and closing.
Fault detection: configure single-phase ground, three phase phase protection, overload, protection against inrush current protection, and record the size of the protection current.
Communication function: with serial port and network communication interface, built-in 101,104 and other power industry standard communication protocol, the data can be uploaded to the master through optical fiber / Ethernet, GPRS / CDMA and other means.
Self-diagnosis, self-recovery function: Self-diagnostic function, when found that internal hardware and software anomalies, timely recording and reporting, and the software has a power-on self-recovery function.
Power management: support dual AC power backup power supply, the battery as a backup power supply, the use of soft-switching technology to seamlessly cut in the main power failure, the standby power supply can be automatically seamlessly into; with battery activation management capabilities that can be automatically and manually Charge and discharge the battery.

 

Control box technical parameters

Features

index

Function points the number and details

Current sampling

5A/1A

4 (3 phase current 1 channel zero sequence current)

Voltage sampling

AC220V/AC100V

4(2 route voltage or 3 route phase voltage 1 road zero sequence voltage)

Remote input

Empty node

7(Split location, storage location 7 Road, open)

AC input

AC165~265V

1(Normal configuration 1 Road can be configured 2 automatic switching)

With the switch

Pop-up switch

Divide the brake energy storage DC24V 300W

With the switch

Permanent magnet switch

Coil DC220V40A

Communication protocol

IEC101 Balanced, unbalanced IEC104  DNP3.0  ModBus

Control box performance parameters

Features

unit

index

AC current loop overload capability

 

2In,continuously working;10In,10s;20In,1s

AC voltage circuit overload

 

1.5Un continuously working

Remote letter resolution

ms

≤2ms

Software anti-shake time

ms

0~6000ms Can be set

Device power consumption

w

≤15w

measurement accuracy

%

Voltage, current 0.5%, active power, reactive power 1.0%

backup power

 

AC power loss to maintain normal work more than 8 hours

Control output node capacity

 

DC24V/16A,AC250V/10A

Insulation performance

≥5MΩ

Electromagnetic Compatibility

 

IV

Degree of protection

IP

IP54

Ambient temperature

 

-40℃~+70℃,The maximum temperature change rate,1.0℃/min

environment humidity

 

Relative humidity 10~100 %,Maximum absolute humidity,35g/㎥

 

Control box dimensions

 

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