B3 8.1

Tap changers are used to regulate the                 voltage of the bank

What are the two types of Tap Changers

What Tap Changers are most commonly used on distributing
station banks

True/False

No Load Tap Changers require that the bank be cleared up and grounded to change the taps.
True False

True/False

These tap changers require that the bank be cleared up
to change the taps.
True False

True/False

LRC (Load Ratio Control) banks are used in place of voltage regulators on the feeders
True False

What are three major components to a tap changer

The tap changer assembly consists of a:

Control power for the Tap Changer Assembly system is supplied from                 

Regarding LTCs, the                    simulates the
impedance of the circuit

True/False

In LTCs, the simulated line-drop from the compensator is subtracted from the potential transformer secondary voltage, the results are applied to the voltage sensor
True False

The Operator Control Panel typically contains

How does the indicator receive tap position information

                  assure that the drive motor does not travel past
predetermined limits

True/False

Tap changers can be operated automatically, manually as a group (all three phases of the transformer), or manually at each individual phase
True False

The bandwidths used are between                volts on a 120-volt scale.

The time delay is adjustable from 10 through 90 seconds. The time delay is typically set for           

What do you do if a loss-of-vacuum alarm occurs