Answer Posted / k.prakashchandra

In case of on-line UPS ,the load is always met by inverter
,and for off-line , it is either line directly or inverter

sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

1559

---

What is the meaning of floating point earthing in battery backed systems ?

2071

---

what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?

1891

---

what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?

2166

---

what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

2080

---

can any tell me why slope 40% and 80% is calculated in differential protection?

1938

---

please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

2025

---

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5479

---

What is depreciation factor?

2318

---

what is the meaning of the symbol << >> put in transformer drawing

2052

---

What is measurement?

1241

---

I have two PLC processors. I want to communicate both processor with each other. How i can do so?

2212

---

What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?

3808

---

What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?

1191

---

our industries ht line so power fluctation(once drop of power please rectify causes

2316

---