Answer Posted / minal

This is a electrical device for step up or step down the
voltages.It has two terminals one output terminal & other
is input terminal.

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1957

---

How to select the cable and voltage drop in circuit?

1759

---

Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1831

---

When and where resistance earthing is used ? How to calculate the time constant for earth fault

1813

---

How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.

2325

---

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

2191

---

how do we calculate length of starting time and repeated starting of a direct online starter?

1978

---

1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?

1976

---

why core is useful for a transformer ?and also in its operation ?

2097

---

What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

2067

---

i have a 1500kVA transformer what is the kWH meter i need to use?

1779

---

What is meant by a stray loss of a induction motor??? What is the equation to find it

3090

---

What are electric motors?

1158

---

How one may guess the direction from which the distribution line is incoming if there is no pole plate on poles?

2178

---

by what factor the starting current is used when comparing star and delta connection for motor starting?

2065

---