# A fuse is connected?

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A fuse is connected in series with circuit.

## Related questions

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A fuse wire should have :  (A) Low specific resistance and high melting point (B) Low specific resistance and low melting point (C) High specific resistance and high melting point (D) High specific resistance and low melting point

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Draw the phasor diagram for Star connected balanced system.

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When three resistors with unequal values are connected in parallel, _______ A) The current across the resistors is the same  B) The voltage drop across the resistors is the same C) The voltage drops across the resistors is proportional to the resistance of each resistor D) None of these

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If non-linear loads are connected to the power system, then (A) displacement power factor is same as the total power factor (B) displacement power factor is not equal to the total power factor (C) displacement power factor is due to harmonic currents (D) total power factor is due to fundamental component of current

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With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals?

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Cells are connected in series in order to?

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What is line voltage and phase voltage? Draw balanced three phase star connected system. Show all the voltages and currents.

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A fuse should be connected in

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An IDMT relay of rating 5A, 2.2s and having a relay setting of 125% is connected to a supply circuit through a CT having a ratio of 400/5. The plug setting multiplier of IDMT relay in the event of fault current of 4000 A will be a. 5 b. 8 c. 10 d. 125

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A relay has a rating of 5 A, 2.2 sec IDMT and a relay setting of 125% TMS = 0.6. It is connected to a supply circuit through a C.T. 400/5 ratio. The fault current is 4000 A. The operating current of the relay is

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A lightening arrester connected between the line and earth in a power system  (1) protects the terminal equipment against travelling surges (2) protects the transmission line against direct lightening strokes (3) suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it

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To prevent mal-operation of differentially connected relay while energizing a transformer, the relay restraining coil is based with  (1) second harmonic current  (2) third harmonic current  (3) fifth harmonic current  (4) seventh harmonic current

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Fuse wire protection system is usually not used beyond: a. 10A b. 25A c. 50A d. 100A

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Semiconductor devices are protected by a fuse and the material used is (A) silver (B) gold (C) copper (D) tin

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For a fuse wire of diameter ‘d’, fusing current is proportional to   (a) √d (b) d1.2 (c) d1.5 (d) None of these

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What is the purpose of providing a fuse in an electric circuit?  (A) To safe guard the installation against heavy current (B) To reduce the current flowing in the circuit (C) To reduce the power consumption (D) To improve power factor

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The rating of fuse wire is always expressed in   (a) volts (b) amperes (c) ampere-volt (d) ampere-hours

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An H.R.C. fuse is?

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Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link

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The material used for fuse wire should be of   (a) low resistivity and high melting point (b) high resistivity and high melting point (c) high resistivity and low melting point (d) low resistivity and low melting point

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Which type of protection is provided on a generator to protect against stator insulation failure? A) Differential protection B) Overcurrent relay C) Thermocouple actuated alarm D) Reverse power relay

1 answer 66 views

In a biased differential relay, the bias is defined as the ratio of  A) Number of turns of restraining coil and operating coil B) Operating coil current and restraining coil current C) Faulteurrent and operating coil current D) Fault current and restraining coil current

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If a relay fails to operate for a fault within its reach, it is said to

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The purpose of the restraining coil in a biased differential relay is  (A) To reduce CT saturation during fault.  (B) To increase the sensitivity of the relay.  (C) To match the transformation ratio.  (D) To limit the spill current through the relay during heavy external fault.

1 answer 21 views

The operating point of a protective current transformer is near the