19 views
in Transformer by

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

1 Answer

0 votes
by

No-load current in a transformer lags behind the voltage by about 75°.

Related questions

1 answer 10 views
1 answer 21 views

A no-load test is performed on a transformer to determine?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 26 views

In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of?

asked Mar 19, 2018 in Transformer by Shimroz123
2 answers 38 views

The inrush current of a transformer at no load is maximum if the supply voltage is switched on  (1) at peak voltage value (2) at zero voltage value (3) at half voltage value (4) at 0.866 time voltage value

asked Apr 30, 2018 in Switchgear And Protection by Shimroz123
1 answer 30 views

For a transformer, operating at constant load current, maximum efficiency will occur at?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 15 views

In a given transformer for a given applied voltage, losses which remain constant irrespective of load changes are?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 19 views

The maximum load that a power transformer can carry is limited by its?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 32 views

When secondary of a current transformer is open-circuited its iron core will be?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 23 views

The secondary of a current transformer is always short-circuited under operating conditions because it?

asked Mar 19, 2018 in Transformer by Shimroz123
2 answers 73 views

 The no-load current drawn by transformer is usually what per cent of the full-load current ?

asked Mar 27, 2018 in Transformer by Shimroz123
1 answer 15 views
1 answer 20 views

In a transformer the resistance between its primary and secondary should be?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 11 views

If a transformer is continuously operated the maximum temperature rise will occur in?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 16 views

The hum in a transformer is mainly attributed to?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 20 views

The path of magnetic flux in a transformer should have?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 11 views

No load current in a transformer: (A) lags the applied voltage by 90° (B) lags the applied voltage by somewhat less than 90° (C) leads the applied voltage by 90° (D) leads the applied voltage by somewhat less than 90°

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 14 views

In case of a power transformer, the no load current in terms of rated current is (1) 10-20% (2) 15-30% (3) 2-6% (4) 30-50% 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views
1 answer 540 views

Reduction in core losses and increase in permeability are obtained with transformer employing?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 27 views

what do not change in transformer?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 27 views

In a single-phase transformer, the magnetizing current is (A) in phase with the no-load current (B) in quadrature with the no-load current (C) the product of no-load current and power factor (D) in phase with the flux in the core

asked Apr 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 63 views

How eddy current is produced in a transformer?

asked Mar 15, 2018 in Electrical Engineering by Quiz
1 answer 25 views

A single-phase transformer has no-load loss of 64 W, as obtained from an open circuit test. When a short-circuit test is performed on it with 90% of the rated currents flowing in its both LV and HV windings, he measured loss is 81 W. The transformer has maximum efficiency when operated at  (A) 50.0% of the rated current (B) 64.0% of the rated current (C) 80.0% of the rated current (D) 88.8% of the rated current

asked May 17, 2018 in Transformer by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,536 questions

7,135 answers

135 comments

3,090 users

...