Gas Insulated Load Break Switch

General

LW3F type pole-mounted SF6 load break switch was used in 12kV,24kV,33kV rated voltage, rated current 400/630A; 50/60HZ with the load current; over load current of power line open circuit and opening and closing electric systems.

The switch can equiped with a conttoller with most advanced technical parameter.

LW3F-A type LW3F is manaully LBS for choice.

LW3F-M type LW3F is a intelligent type LBS for choice. 

It can automatically disconnect when the distribution line was break down. 

It could operated by handle; Implementt electromotion and distant. The electric controller was installed in stainless steel cabinet. So it could use in any conditions.

Service Condition

a) Air temperature:

    Maximum temperature: +40 ; Minimum temperature:-20 

b) Humidity:

    Monthly average humidity 95%; Daily average humidity 90% . 

c) Altitude above sea level:

    Maximum installation altitude: 2500m

d) Ambient air not apparently polluted by corrosive and ammable gas, vapor etc. 

e) No frequent violent shake

Technical Data

Product Structure

① Operation Handle

② 0N/OFF Indication

③ Installation Bracket

④ Operating Mechanism

⑤ Interrupter

⑥ Hanging Lug

⑦ Cable Bus hing

Product Characters:

●High quality porcelain or Rubber bushing

●Full comply with IEC std

●Guarantee 4000 times operations

●Environment friendly

●Suitable for both Pole mounted or Hanging mounted

●Reliable and Enhanced Life Expectancy

●Ambient Temp:-40℃~+ 80℃

Contrller

Description

Voltlogic series line sectionalizing load break controller is 

medium voltage overhead line grid monitoring unit, It can combined with load break switch for achieve of measure monitoring, fault analysis and event records. It gives us a safety power grid for cutting line fault and automatic recovery operation and power automation.

The controller is gathering with line protection, control, measurement and monitoring of voltage and current signals integrated automation and control devices outdoors.

The controller is a automatic management unit for single way/multi ways/ring network/two power sourcing, provided with all voltage and current signals and all functions.

The controller column switch intelligent controller supports:Wireless (GSM/GPRS/CDMA), Ethernet mode, WIFI, optical fiber, power line carrier, RS232/485, RJ45 and other forms of communication, and can access other station premises equipment (such as TTU, FTU, DTU, etc.).

Protection Functions

Metering

● Phase current IA, IB, IC RMS, Zero Sequency

● Voltage Uab, Ubc, Uca, U0

● Active power, reactive power and power factor

● Frequency

Control and Monitoring

Switch control : 94

Lockout Relay : 86

Features

● Protection configuration is complete, and all protection functions can be switched on and off flexibly.

● 13 channels digital signal input.

● 4 channels current measure.

● 6 channels voltage measure.

● Large capacity flash memory can record at least 100 times of historical events and no data will loss even the power is off.

Records

● Trip logs

● SOE logs

● Alarm Logs

Communication

● RS485, RS232 port and Ethernet

● Protocols -IEC60870-5-101, IEC60870-5-104

● IEC61850 or Modbus RTU,DNP3.0

HMI Software

Dimensions

15kV SF6 Load Break Switch 

24kV SF6 Load Break Switch

36kV SF6 Load B Reak Switch

Install Ation

① Power Cable

② Load Break Switch

③ PT

④ Controller

⑤ Ground cable