SAP Unit 2

____ Relay Uses solid state components like transistors and diodes.

• Electromechanical type

• Numerical type

• static type

• Microprocessor type

_____ Compares the magnitude of two input quantities irrespective of the angle.

• Phase comparator

• Magnitude comparator

• Circulating current comparator

• None of the above

What is the main function of a microprocessor type relay?

• Control phase angle

• Compare magnitudes

• Use solid state components

• None of the above

What is the function of phase shifter?

• To achieve max output

• to shift the phases

• to minimize the output

• None of the above

What is the purpose of a phase comparator?

• To compare phase angles

• To compare magnitudes

• To control phase shift

• None of the above

What is the primary function of a circulating current comparator?

• To compare phase angles

• To compare magnitudes

• To detect circulating currents

• None of the above

Which component is connected next to rectifier in Microprocessor based relay?

• Phase shifter

• Zero detector

• Multiplexer

• ADC Converter

Which type of Gate is used in Phase comparator?

• AND

• OR

• NOT

• NOR

AC voltage is converted into DC using _______ Circuit.

• Comparator

• Rectifier

• I to V Converter

• Inverter

The value of the predetermined current above which the overcurrent relay operates is known as ______.

• Preset value

• Pickup Value

• Set Point

• Setting Multiplier