(a) Neutral point
(b) Star point
(c) Both a and b
2. Current coil and pressure coil present in
3. Power is measured by
(b) Frequency meter
4. The value of cos6O° is
(c) None of them True and False 1. Poly-phase means the order in which 3-phase attain their minimum values. F
2. In poly-phase, the phases are 120° electrical degree apart each other. T
3. In 3-phase star connection has one neutral point. T
4. In 3-phase delta connection there are two neutral points. F
5. In star connection, IL = Iph. T
6. Static capacitor is power corrective equipment. T Fill in the blanks 1. In 3-phase star connection the line current, IL = Iph.
2. In 3-phase delta connection line current, IL = 3 Iph..
3. The value of power for delta or star connected, P = 3VL IL cosФ.
4. The value of 1.732.
5. Wattmeter is used to measure the power.