# Availability factor

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Availability factor

## Related questions

Discuss how power factor tariff results into energy conservation.

Draw and explain bulk correction method for power factor & control.

State the incentives and penalties related with power factor tariff.

With a neat sketch explain working of 1 phase dynamometer type power factor meter.

State the significance of power factor.

Define ripple factor and PIV of diode.

Define form factor and peak factor.

The following formula is correct:  (A) Diversity factor =1 / Coincidence Factor  (B) Diversity factor =1 x Coincidence Factor  (C) Diversity factor =1 - Coincidence Factor  (D) All of the above

A control system having unit damping factor will give  (1) Oscillatory response (2) Undamped response (3) Critically damped response (4) No response

Load factor is the  (1) Ratio of maximum load on the station to sum of consumer's maximum load.  (2) Ratio of average demand to maximum demand.  (3) Factor used for increasing load.  (4) Reciprocal of (1).

A transformer has negative voltage regulation when its load power factor is   (1) Zero (2) Unity (3) Leading (4) Lagging

The knowledge of diversity factor helps in computing  (1) Plant capacity (2) Average load (3) Units (kWh) generated (4) Peak demand

The load duration curve for unity load factor will be of  (1) Rectangular shape (2) Triangular shape (3) L -shape (4) I -shape

The power factor of dielectric :  (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)

In order to have a lower cost of electrical energy generation the load factor  (1) and the diversity factor should be low (2) should be low but the diversity factor should be high (3) should be high but the diversity factor should be low (4) and the diversity factor both should be high

Power station having Load factor = 70%, capacity factor = 50%, used factor = 60%, maximum demand = 20MW then annual energy production is  (1) 122.8 GWh (2) 198.55 GWh (3) 128.2 GWh (4) 188.82 GWh

In a synchronous generator delivering lagging power factor load  (1) the excitation emf leads terminal voltage by the power angle (2) the excitation emf lags terminal voltage by the power angle (3) excitation emf leads the terminal voltage by the power factor angle (4) excitation emf lags the terminal voltage by the power factor angle

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

What is crest factor (peak factor)? A) It is the ratio of the maximum amplitude to average value B) It is the ratio of the average amplitude and RMS value C) It is the ratio of the maximum amplitude to RMS value D) None of these

Which of the following waveforms has the lowest form factor? A) Sine wave B) Square wave C) Sawtooth wave D) Triangle wave

The benefit of power factor correction in a power system is (A) lower power consumption (B) increased demand charge (C) reduced load carrying capabilities in existing lines (D) reduced voltage profile

The power factor angle and torque angle of a salient pole synchronous generator drawing a current of 1.0 pu from a lagging load are 45o and 15o, respectively. The direct axis and quadrature axis currents, respectively, are (A) 0.5 pu, 0.866 pu (B) 0.866 pu, 0.5 pu (C) 0.707 pu, 0.707 pu (D) 0.5 pu, 0.5 pu

The damping factor of a particular system is unity, the system response will be

The power factor of a D.C. circuit is always?

The ratio of active power to apparent power is known as____ factor.

The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is?

Power factor of electric bulb is?

The power factor at resonance in R-L- C parallel circuit is?

Power factor of the system is kept high?

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

Capacitors for power factor correction are rated in?

Poor power factor?

Power factor of an electrical circuit is equal to?

Form factor for a sine wave is?