LBS, VCB Switch Controller

brief introduction

RWK□T Switch controller is a monitoring unit coupled to its pole-mounted switch in medium-voltage overhead line power networks, it has the functions of remote-control and automatic reclosing management. The Microprocessor Control unit is installed in close proximity to the pole-mounted switch outdoors and is used for voltages ranging up to 38kV.

RWK□T Microprocessor Control is a comprehensive outdoor automation metering and control device which integrates the functions of line protection, control, metering and signal monitoring. It possesses all functions for long-distance operation in dealing with single overhead line switch.

designed to switch

power supply

1.

Rated operation power supply

AC220V

2.

Nominal voltage tolerance

-20%～+20%

3.

Stand-by power supply

2 lead-acid free of maintenance batteries of 7Ah

4.

Power consumption

≤10W

5.

Rated frequency

50Hz

6.

Wave-shape distortion

≤5%

Rated Metering

1.

Current transformer

5A, power consumption <1.0VA/phase

2.

Potential transformer

220V, power consumption <0.5VA/phase.

3.

Frequency

50Hz

Metering Range & Accuracy

1.

Current

(10%～2000%)ⅹIn ≤±3.0℅

2.

Voltage

(10%～150%)ⅹUn ≤±0.5℅

3.

Frequency

45HZ～65HZ ≤±0.1%

Protective Performance Parameter

1.

SOE Resolution

2ms

2.

Instantaneous overcurrent trip time

Operation time≤40ms under 1.2In

3.

Protection trip time error

≤1%

Output of Outlet Relay

1.

Resistivity

16A/250VAC，16A/30VDC

2.

Electric life

100,000 times

Digital Input

1.

digital input voltage

DC24V

2.

Input resolution

2ms

EMC Characteristic

1.

Insulation impedance

≥10MΩ

2.

Insulation intensity

2.5kV，1min

3.

Voltage abrupt drop & interruption

100%，0.5s

4.

High-frequency interference Series mode

1.5kVP，1min

5.

Common mode

2.5kVP，1min

6.

Instantaneous pulse cluster

4.0kVP，1min

7.

Surge current interference

4.0kVP，1.2/50μs

8.

Static discharge

8kV

9.

Power frequency magnetic field

100A/m

10.

Damp Shock

100A/m

11.

Pulse voltage

5kV，1.2/50μs

Standard compliance: IEC 60870-2-2：1996

Communication Interface

1.

Main communication interface

1 RS485 interface（9600bps）

Work Condition

1.

Operating temperature

-40oC～+70oC

2.

Storage temperature

-40oC～+85oC

3.

Humidity

5%～100% including condensed dew

4.

Temperature variability

<25oC/h

5.

Atmospheric pressure

70～106KPa

6.

Ambient environment

Out of reach to explosive & corrosive gas and conductive dust, enzyme bacteria and heavy vibration

Other Technical Data

1.

Total weight

≤25kg

2.

Enclosure protection class

≥IP54

3.

Mean time between faults

≥50,000h

All rights Reserved to Rockwill Electric Company