Answer Posted / devi

UPs means Uniterrupted power supply it supplies power, it,s
main part Capacitor

take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????

2253

---

how did the testing of protection relays done through current injection

2093

---

can i connect REF and Differencial relay in 1 CT core for transformer protection?

1961

---

how mass curve differs from hydrograph.

1800

---

Explain what is electric traction? Explain few advantages of electric traction system?

1171

---

What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

2988

---

Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

2147

---

can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value

1867

---

why does make gain margin and phase margin on same plot.?

2129

---

What are chief characteristics of state-space method and its techniques ?

2166

---

A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

2519

---

What is transient response?

1143

---

during installation time of transformer and alternator which points we have to observed?

1960

---

How to calculate the copper in HT motors if KW, RPM & Voltage is given

3215

---

if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

1863

---