what is electricial and mechnical interlock.
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Answer Posted / orlando rodriguez orense
Electrical and Mechanical Interlock are used when there two
or more source of power supply to a common load.
For example a Power Utility Electric supply and a standby
Generator power supply. Of course we do not want this two
supply to be connected to the load, not unless properly
synchronize, as the smaller Power supply will get motorize
and eventually be burnt. Usually in the case of smaller size
of Standby generator which is being normally protected by a
electrical and mechanical interlocking device.
Electrical interlocking device like (ACB) Air Circuit or
Breaker and Mechanical Interlocking device is a mechanical
way, bolt or metal strips, design so as not to switch on the
two ACB power supply source at the same time. You can only
switch on one breaker at a time. This will avoid the
Electrical Fault cause by two power source simultaneously
supplying common load.
The safest way is to use both Electrical and Mechanical
interlock on multi source op power supply.
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