FLN36-12D Indoor High Voltage AC Load Switch

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Product Detail

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Overview

FLN36-12D indoor high-voltage AC load switch is a medium-voltage switchgear developed by our company with reference to international new technologies and according to the relevant standards of my country’s power system. 2004 “3.6kV-40.5kV High Voltage AC Load Switch”, GB1985-2004 “High Voltage AC Isolation Switch and Earthing Switch”, GB/T11022-1999 “Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards”, is the standard of ring network cabinet. main switching element. The load switch is a multi-functional medium-voltage switchgear integrating gate, opening and grounding. It is filled with SF6 gas of 0.05MPa in a fully sealed epoxy resin shell with reinforced structure, and the above is achieved with the least parts. Three functions ensure product quality and improve reliability. Maintenance-free, safe operation for more than 20 years under normal conditions.

Use Environmental Conditions

a) The altitude does not exceed 1000m;
b) Ambient air temperature: upper limit +40, lower limit -25ºC;
c) Relative humidity: the daily average is not more than 95%, and the monthly average is not more than 90%;
d) The surrounding air is not obviously polluted by corrosive gas or combustible gas, water vapor, etc.;
e) No frequent violent vibrations.

The Main Technical Parameters

Project

Units

Data

Rated voltage

kV

12

Rated frequency

Hz

50

Rated current

A

630

Rated peak withstand current

kA

50

4s rated short-time withstand current

20

Rated making current

50

Rated breaking current

Active load breaking current

A

630

Closed-loop breaking current

630

Cable charging breaking current

10

Power frequency withstand voltage 1min alternately, to ground/fracture

kV

42/48

Lightning impulse withstand voltage phase-to-phase, to ground/fracture

75/85

SF6 gas relative pressure (20℃ gauge pressure)

MPa

≤0.04

Rated operating voltage (electric)

v

AC/DC220

Shunt release rated voltage

AC/DC220

Average opening speed

m/s

3.5±1.5

Average closing speed

m/s

3.5±1.5

Three-phase opening and closing synchronization

ms

≤3

Main circuit resistance

uQ

≤120

Manual operation maximum torque

N.m

160

Phase center distance

mm

210±0.5


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