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 does the regenerative braking mean?and how it used for Dc motor? thanks.

2 Answers  

---

What is Co-generation in the context of electrical power systems?

1 Answers  

---

how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

---

What is time invariant system?

0 Answers  

---

auto reclosing scheme for radial ehv feeder is to be implemented or not?

1 Answers   State Board,

---

when we conduct high voltage testing why milli amp. is required?

2 Answers  

---

Are generator action and motor action relates to a particular machine only?

2 Answers  

---

in catridge heeter  watts =110, 260 v ,  i checked in multimeeter meeter shows 50 ohms but oms law r=v square /w  260*260=67600, and 67600/110=614.5 ohms  how to caluclate exact ohms in heetre s 

2 Answers  

---

HOW SKIN EFFECT REDUCE THE CROSS SECTION OF THE CONDUCTOR

2 Answers  

---

How the Oil Surge Relay works? How it protect the OLTC?

3 Answers   JSL,

---

what is the earthing condition between earth & neutral.

6 Answers   ABB,

---

which is the best institute for PLC,SCADA,DCS in hyderabad

0 Answers  

---