Voltage Transformers Match High Voltage Switchgears
The voltage transformers are match 35~1000kV GIS or PASS high voltage switchgears. Their dimensions,
technical parameters and service environments can be designed according to the requirements of the clients.
The enclosures of the voltage transformers are made by metal which is steel or aluminium, there are two kinds
of the technics for the enclosures: casted or welded.
a. Ambient air temperature: -60 ~ 50℃.
b. Altitude: ≤3000 m.
c. Atmospheric conditions: Atmospheres which are not heavily polluted by dust, smoke, aggressive gases, vapors or salt spray and explosive medium.
d. Installation site: Indoor, outdoor or the special service conditions products can be provided according to theclients’ requirements.
e. Installation method: there are several kinds of the installation methods, such as standing, upending or thespecial installation method products can be provided according to the clients’ requirements.
f. Earthing system: Neutral point effective ground system.
Note: If there is any different from the service conditions of the above, we can design according to the requirements of the clients.
Main Technical Parameters
Rated primary voltage: 35kV, 66kV, 110kV, 132kV, 150kV, 220kV, 330kV, 380kV, 500kV, 750kV and 1000kV and so on.
Rated secondary voltage: 0.1 / 3 kV, 0.11 / 3 kV or 0.115/ 3 kV.
Rated voltage of residual voltage winding: 0.1kV, 0.11kV or 0.115kV.
Rated frequency: 50 Hz or 60Hz.
Voltage ratios, maximum rated outputs and corresponding accuracy classes please see below table.
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