Transient Classes

The copper loss of a single phase transformer at full load is 1000 W. What is the copper loss at half load?

________ gate is referred as inverter.

There are no transients in _______.

The boolean expression of an OR gate is ________.

A 3-phase induction motor can be considered as a __________ as per its working principle.

The scale of PMMC instrument is ________.

The load resistance in a 240 V DC circuit is 80 ohms. The magnitude of load current will be _______.

The value of X + X.Y using boolean algebra is _______.

A Schering bridge can be used for ________.

When maximum power is transferred from source to load of any circuit, the efficiency will be _______.

Maxwell inductance bridge is used for coils of Q value ______.

A 4-pole, 3-phase, 440 V induction motor runs at 960 rpm when the slip is 4%. The supply frequency is ______.

If the full load copper loss of a transformer is 600 W, then the copper loss at half load is ______.

The span of a zero centered voltmeter having a scale from -10 V to +10V is _________.

Three delta connected resistors absorb 60 kW when connected to a three phase line. If the resistors are connected in star, then thepower absorbed is _____.

MOSFET can be used as a _______.

A 30 kVA, single phase transformer has 250 turns on the primary and 40 turns on the secondary winding. The primary is connected to1500 V, 50 Hz mains. On full-load, the primary and secondary currents are ______ and _______ respectively.

A series RLC circuit has R = 2Ω, L=1H and C =1F respectively. If V m = 230V, the current I m at resonance is______.

A 12-bus power system has a slack bus and 4 - voltage controlled buses. For the load flow analysis using Newton-Raphson method inpolar coordinates, the size of the Jacobian matrix is _______.