Question

1. a) Draw the circuit diagram using BIS symbols to measure the power and energy in single
phase AC circuit with unity power facctor​

Answer 1

Answer:

BIS

Explanation:

symbols to measure the power and energy in single

phase AC circuit with unity power facctor

Answer 2

Answer:The simplest single phase ac power connection requires two wires. In low voltage circuits, voltage can be measured directly with an appropriately scaled ac voltmeter. Current is usually measured by inserting a current transformer in the line side and monitoring the output with a 5A full scale ac ammeter

Explanation:

The simplest single phase ac power connection requires two

wires. In low voltage circuits, voltage can be measured

directly with an appropriately scaled ac voltmeter. Current is

usually measured by inserting a current transformer in the

line side and monitoring the output with a 5A full scale ac

ammeter . Where the circuit cannot be broken to

insert the current transformer, a split core or clamp-on

current transducer can be used. In higher voltage circuits, a

potential transformer may be added to step down the source

voltage to a lower level .Depending on voltage levels, frequency meters can be directly connected in the same manner as the ac voltmeter, or operated through a potential transformer. Some wattmeters, power factor meters and watt-hour meters are directly connected to the power source. In higher energy circuits, or situations where the meter is located far from the power circuit, a CT and PT are used .

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