how to select automotive wire by mathematical equation with given current, vlotage and resistance

0 Answers   Tyco,

---

what is the VVVFD and?

4 Answers  

---

some basic standard questions on transformer.

0 Answers   United Engineering,

---

how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?

0 Answers  

---

How to select the rating of a CT used for REF protection. The rating can be of equal rating of Phase current or neutral current rating

2 Answers   UltraTech,

---

---

Why Delta Star Transformers are used for Lighting Loads.

6 Answers  

---

Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks

0 Answers  

---

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

---

who iz power minister ?? :P

1 Answers   IOCL,

---

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

0 Answers   Siemens,

---

For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

0 Answers  

---

Is there chopping current in resistive circuit

0 Answers  

---