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1 Phase Earthing Switches


1 Phase Earthing Switches

Earthing switches are mechanical switching devices used for earthing parts of high voltage power systems. Earthing switches are capable of withstanding short-time current, but not required to carry line current under normal conditions of the power system.

EMEK Earthing Switches are;

Three or single phase

Designed for use in open-air high voltage substations.

Vertical opening single break

Supplied as either manual or motor operated

Suitable for local and remote control

Rated short-time current: up to 40kA/3 sec

Brown or gray porcelain or polymer insulator.

Rated Voltage
Highest System Voltage72,5123145 kV170 kV245 kV
One minute power frequency voltage140230275kV rms325kV rms460 kV rms
Withstand Voltage
Lightning impulse voltage325 kV Peak550 kV Peak650 kV Peak750 kV Peak1050 kV Peak
Withstand Voltage
Rated frequency50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz
Short time thermal current40kA/1sec40kA/1sec40kA/1sec40kA/1sec40kA/1sec
Technical Details
Type Tests
Balıkhisar Mahallesi, Köyiçi Kümeevleri No: 574, Akyurt, 06750 Ankara - Türkiye
(+90) -312 -398 -0181
(+90) -312 -398 -0474
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About Us

Emek is a labor-independent, internationally operating manufacturer of instrument transformers.

Its reliable and high quality products have been repeatedly tested in local and international laboratories. Its experience has been strengthened with transformers working in the system for half a century, it has improved and renewed itself every day.

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