Outdoor AC Vacuum Circuit Breaker

Functions and technical parameters of intelligent terminal controller

General introduction

1)Circuitbreaker adopts MGK magneticcontroller.It’sconvenient to realize openingand closingof pole magnetic switch,protect lines and devoidover current during closing.

2)Closing and opening operation of magnetic mechanism

3)Protection function of lines

4)Function of anti rush current

5)Function of communicating with control center

6)Continuous power supply of all parts

7)Signalsupervision

8)System electricity measuring

9)Remotecontrol

10)Wireless data transmission (optional)

11)History operation memory

Closing and opening management of magnetic mechanism

1)Manual operation

2)Controller(within 30m)

3)Remote communication operation

4)Wireless datacommunication operation(within 200m)

Function of line protection

1)Instant breaking protection

2)Timing over-current limitation protection

3)Closing rush current protection

4)Switchsignal collection and special non-electricity protection

5)All sections of protection value can be adjusted on panel digital tube

Signal supervision

1)Supervise operating condition of circuit breaker

2)Supervise voltage of control loop,alarm and lock closing and opening operation under LV

3)Optical isolation,anti-interference ability

4)6 lines of switching signal input

Measuring function

1)Statistics of switch operation

2)Measured value will show on panel digital tube.

Memory of history operation

1)SOE record:record operation information,with time scale,2ms minimumresolution;circularlymemorize 32 groups of SOE event.

2)Record the current valueof the line protection,witha time scale

3)SOE records call via PC RS232 port;also available through wireless data transmission call.

Man-machine interface function

Wireless data transmission(optional):using wirelessnetworkcard of the machine parts within200meters,the computer can easily query and set data as well as query all information of devicewithout operation.

Self-diagnostic protection

1)Deviceself-test:periodic self-test such as RAM,FLASH,UART,A/D,such as voltagecontrol loop.Any failure is shown through the alarmpanel and lock the correspondingoperation.

2)Receiving the time correcting request frommasteror sub-station to keep pacewith the system clockand enhance the comparabilityof time records.

High reliability

AI EMC targetscan complywith the fourth class criteria of DL/T721-2000,the failure rate is low.

High degree of protection

Thecontroller box is made of high qualitystainless steel,surface brushed,nice shape.Topreventcorrosion,accidental damage,UV damageand high-frequency attenuation.Outdoor wall mountedwith good protection.Protection is not less than IP54.

Main technical parameters of controller

The configuration of curren transformer

Two standard current transformers with circuit breaker body,current transformer ratio is selectedas 50/5～1250/5(circuit breaker rated at 630A,the current transformer ratio selection up to

630/5).To improve the mechanical strength,epoxy cast transformer body iswhole and adoptssolidsiliconrubber insulation.

Voltage transformer configuration

Circuit breaker canbe equipped with two external voltagetransformer,variable ratio 10000/100/220V,capacity of 500VA,partial discharge is less than 20pC.Permanent magnetic actuator and controldeviceoperating powerand low voltagecomponent power supply components are provided bythe secondary voltage transformer.

Overall and Installation Dimension

Installation dimension of circuit breaker

Outline dimension of intelligent terminal controller

Installation diagram of circuit breaker and controller