MGVCL Exam Paper (30-07-2021 Shift 2)
In a short circuit test on circuit breaker, time to reach the peak re-striking voltage is 50 µs with the peak restriking voltage of 100 kV. Determine average RRRV (Rate of rise re-striking voltage)?

1 x 10⁶ kV/sec
3 x 10⁶ kV/sec
2 x 10⁶ kV/sec
4 x 10⁶ kV/sec

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MGVCL Exam Paper (30-07-2021 Shift 2)
A short-shunt dc compound generator supplies 50 A at 300 V. If the shunt field resistance, series field resistance and armature resistance are 30 Ω, 0.03Ω, and 0.05 Ω respectively, determine the e.m.f. generated.

308.5 V
302.5 V
306.5 V
304.5 V

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MGVCL Exam Paper (30-07-2021 Shift 2)
A three-phase, 12 kV, 50 Hz and 300 kW load is operating at 0.8 pf lag. If the pf is to be improved to unity, using star connected capacitor, the per phase value of the reactive VAR required is:

100 kVAR
25 kVAR
50 kVAR
75 kVAR

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following does the term 'feeder automation' include?

substation reactive power control
automatic reclosing
feeder remote point voltage control
All of these

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MGVCL Exam Paper (30-07-2021 Shift 2)
નીચે માંથી ક્યાં રુઢિપ્રયોગનો અર્થ 'છેતરવું' એવો થાય

બે પાંદડે થવું
આડા ઉતરવું
દસ મારવો
હથેળીમાં ચાંદ દેખાડવો

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