Breakers, Disconnects, Transformers).
2025/2026. 100%.
switching
One of the primary tasks of the Electric Station Operator is the __________ of high voltage
circuits.
50 100
Electrical current may flow across the contacts of ____ to ____ electrical switches before it
reaches the consumer.
improper
The __________ operation of these electrical switches can pose a serious hazard to personnel,
can cause destruction of expensive power system equipment, and can cause unnecessary
interruption of electrical service to consumers.
switches
Electrical __________ are installed in the path from the generator to the consumer to provide
reliability, flexibility, and safeguards for the electrical power system.
emergency
Operators use electrical switches to perform routine, automatic, and ____________ switching
operations on the electrical system.
Routine
___________ switching is for maintenance, construction, cleaning, testing, etc.
Automatic
___________ switching operations include automatic reclosers (ARs), Voltage Pickup Unit
(VPUs), and Automatic Transfer Switching (ATSs).
Emergency
___________ switching operations include insolate trouble, restoration, 4.8kV Ground Search,
etc.
, Automatic
The placement of ___________ electrical switches in the power system makes it possible to
limit both the duration and the extent of power outages.
Emergency
__________ switching performed by Operators in usually in response to power outages and
abnormal conditions such as overloads.
manipulation
The electrical function of switches falls into two categories; ___________ of relatively high
values of current and voltage under load AND the switching of circuits to provide a visual
confirmation of de-energization.
Circuit breakers
__________ are electrical switches that are used to manipulate high values of current and
voltage in circuits that are carrying current or will be carrying current following the operation.
Circuit breakers
Transformers and voltage regulators must be energized and de-energized using __________.
Circuit breakers
__________ are designed to open, close, energize, de-energize, and interrupt normal and
abnormal values of current flow in electrical circuits
Disconnects
__________ are provided as a method of visually confirming that a circuit has been
"disconnected" from specified sources of electrical energy.
Disconnects
__________ are used to energize or de-energize short sections of conductor such as leads
connecting a circuit breaker to its associated disconnects.
Disconnects
__________ are not designed to interrupts current flow, open or close circuits, or energize and
de-energize circuits other than short sections.
10 20