introduction to substation Flashcards
A distribution substation will typically ? the incoming voltage.
step down
A converter is not one of the types of substations that are downstream from a generating station.
false
Of the types of substations that are downstream from a generating station, the one closest to the generating station would be a ? substation.
step-up transmission
A rural substation is normally more complex in construction than an urban substation.
false
The ? circuit breaker has been the most common type found in substations.
oil
A substation yard is one large equipotential zone.
true
In a substation, a re-closer is used to protect a ? feeder.
distribution
Substations without transformers are referred to as ?
switchyards
SF6 gas is not used as an arc-quenching medium in circuit breakers because it is highly toxic in its normal state.
false
A substation ground grid is connected to the substation fence and is extended about ? outside the fence.
3’
The voltage supplied by substations found near end users is normally in the 2.4 kV to ? range.
34.5kV
There are ? pieces of equipment used in a substation to adjust the voltage.
4
Capacitors used in substations do not help adjust the voltage.
false
Electricity is transmitted at high voltages to substations ? .
to reduce the losses
Electrical power is transmitted over long distances at low currents and high voltages.
true
