LADWP ELECTRIC STATION OPERATOR (CIRCUIT BREAKERS,
DISCONNECTS, TRANSFORMERS)
09/04/2026
LADWP Electric Station Operator (Circuit Breakers,
Disconnects, Transformers) Questions and Verified
Answers | 100% Correct
Transformers and voltage regulators must be energized and de-energized using __________.
Circuit breakers
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.
improper
Electrical current may flow across the contacts of ____ to ____ electrical switches before it reaches the
consumer.
50 100
Electrical __________ are installed in the path from the generator to the consumer to provide reliability,
flexibility, and safeguards for the electrical power system.
switches
Operators use electrical switches to perform routine, automatic, and ____________ switching
operations on the electrical system.
9/4/2026
emergency
1
, LADWP ELECTRIC STATION OPERATOR (CIRCUIT BREAKERS,
DISCONNECTS, TRANSFORMERS)
09/04/2026
___________ switching is for maintenance, construction, cleaning, testing, etc.
Routine
___________ switching operations include automatic reclosers (ARs), Voltage Pickup Unit (VPUs), and
Automatic Transfer Switching (ATSs).
Automatic
___________ switching operations include insolate trouble, restoration, 4.8kV Ground Search, etc.
Emergency
The placement of ___________ electrical switches in the power system makes it possible to limit both
the duration and the extent of power outages.
Automatic
__________ switching performed by Operators in usually in response to power outages and abnormal
conditions such as overloads.
Emergency
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.
9/4/2026
manipulation
2
, LADWP ELECTRIC STATION OPERATOR (CIRCUIT BREAKERS,
DISCONNECTS, TRANSFORMERS)
09/04/2026
One of the primary tasks of the Electric Station Operator is the __________ of high voltage circuits.
switching
__________ 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
__________ are designed to open, close, energize, de-energize, and interrupt normal and abnormal
values of current flow in electrical circuits
Circuit breakers
__________ 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.
Disconnects
9/4/2026
3
DISCONNECTS, TRANSFORMERS)
09/04/2026
LADWP Electric Station Operator (Circuit Breakers,
Disconnects, Transformers) Questions and Verified
Answers | 100% Correct
Transformers and voltage regulators must be energized and de-energized using __________.
Circuit breakers
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.
improper
Electrical current may flow across the contacts of ____ to ____ electrical switches before it reaches the
consumer.
50 100
Electrical __________ are installed in the path from the generator to the consumer to provide reliability,
flexibility, and safeguards for the electrical power system.
switches
Operators use electrical switches to perform routine, automatic, and ____________ switching
operations on the electrical system.
9/4/2026
emergency
1
, LADWP ELECTRIC STATION OPERATOR (CIRCUIT BREAKERS,
DISCONNECTS, TRANSFORMERS)
09/04/2026
___________ switching is for maintenance, construction, cleaning, testing, etc.
Routine
___________ switching operations include automatic reclosers (ARs), Voltage Pickup Unit (VPUs), and
Automatic Transfer Switching (ATSs).
Automatic
___________ switching operations include insolate trouble, restoration, 4.8kV Ground Search, etc.
Emergency
The placement of ___________ electrical switches in the power system makes it possible to limit both
the duration and the extent of power outages.
Automatic
__________ switching performed by Operators in usually in response to power outages and abnormal
conditions such as overloads.
Emergency
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.
9/4/2026
manipulation
2
, LADWP ELECTRIC STATION OPERATOR (CIRCUIT BREAKERS,
DISCONNECTS, TRANSFORMERS)
09/04/2026
One of the primary tasks of the Electric Station Operator is the __________ of high voltage circuits.
switching
__________ 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
__________ are designed to open, close, energize, de-energize, and interrupt normal and abnormal
values of current flow in electrical circuits
Circuit breakers
__________ 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.
Disconnects
9/4/2026
3
