Description
Model VH7 vacuum breakers are outdoor high-voltage switchgears used in
three phase AC 50Hz electric systems with rated voltage of 40.5kV.
These products feature anti-condensation, anti-fouling, aging resistance,
high temperature resistance, long service life, and stable, reliable,
maintenance free operation. This model is primarily used for protection
and control in industrial, mining and power facilities, particularly in
locations that receive heavy use.
A knob insulation method is used, employing high performance insulating
cement to seal the quenching pot in a common porcelain bushing. The phase
pole is airtight and has a drier inside to ensure highly reliable
insulation. Designed to be used at an altitude of 2500m, it may also be
used in dirty areas of class IV.
With outdoor CT able to be attached on lower outgoing terminals of the
breaker, the spring actuator was independently developed according to
international outdoor modular design construction principles.
Additionally, with movement and speed able to be effectively controlled
with an omni-range buffer, the breaker and support frame are split for
greater operational performance.
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