Verified Questions and Study Guide
switching - ANSWER One of the primary tasks of the Electric Station Operator is the
__________ of high voltage circuits.
50 100 - ANSWER Electrical current may flow across the contacts of ____ to ____ electrical
switches before it reaches the consumer.
improper - ANSWER 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 - ANSWER Electrical __________ are installed in the path from the generator to
the consumer to provide reliability, flexibility, and safeguards for the electrical power system.
emergency - ANSWER Operators use electrical switches to perform routine, automatic, and
____________ switching operations on the electrical system.
,Routine - ANSWER ___________ switching is for maintenance, construction, cleaning,
testing, etc.
Automatic - ANSWER ___________ switching operations include automatic reclosers
(ARs), Voltage Pickup Unit (VPUs), and Automatic Transfer Switching (ATSs).
Emergency - ANSWER ___________ switching operations include insolate trouble,
restoration, 4.8kV Ground Search, etc.
Automatic - ANSWER The placement of ___________ electrical switches in the power
system makes it possible to limit both the duration and the extent of power outages.
Emergency - ANSWER __________ switching performed by Operators in usually in
response to power outages and abnormal conditions such as overloads.
manipulation - ANSWER 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 - ANSWER __________ 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 - ANSWER Transformers and voltage regulators must be energized and de-
energized using __________.
Circuit breakers - ANSWER __________ are designed to open, close, energize, de-energize,
and interrupt normal and abnormal values of current flow in electrical circuits
Disconnects - ANSWER __________ are provided as a method of visually confirming that a
circuit has been "disconnected" from specified sources of electrical energy.
Disconnects - ANSWER __________ are used to energize or de-energize short sections of
conductor such as leads connecting a circuit breaker to its associated disconnects.
Disconnects - ANSWER __________ are not designed to interrupts current flow, open or
close circuits, or energize and de-energize circuits other than short sections.