Answer / ramniveth

there is no CT to sense DC current

but it can be sensed by using two sets of rectifier units
placing one input to primary side of transformer and the
other in secondary side of the transformer.

but this is too expensive

Answer / sp

for measuring current on dc ckt. A shunt connected in the
ckt, drop of mv volt measured and shown accordingly.
2mv -10amp
4mv -20amp

Answer / vikramsena_reddys

A direct current transformer in which the primary consists
of an elongated strip of superconductive material, across
the ends of which is applied a direct current potential.
Parallel and closely spaced to the primary is positioned a
transformer secondary consisting of a thin strip of
magnetoresistive material.

What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

0 Answers  

---

If the ceiling fan is on slow speed, does it consume less electricity?

2 Answers  

---

which one is more costly:single phase induction motor or 3 phase induction motor??give proper reasons..

1 Answers  

---

Why a dc generator gives result during two different condition,- 1)separately exited gen.- Eg=110 V, field current=0.25 A. 2) self exited gen.- Eg=30 V, field current=0.025 A.

1 Answers  

---

Why motor is not calculated in kva, whereas transormers are calculated in kva

2 Answers  

---

What is earth fault?

3 Answers  

---

PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

0 Answers   ABB,

---

Why should not we run the IM in low voltage, if runs means what will happen?(for example instead of 400V we give 250V supply)

2 Answers  

---

What is stub protection is all about?

1 Answers  

---

grr resistance & contrator malt continuous

0 Answers   Pioneer Labs,

---

what is difference between megger & Contact resistance meter & its Application?

2 Answers  

---

why we use perllel conection system in the wiring?

4 Answers   Airtel,

---