Answer Posted / g senthilkumaran

Using scalar control, also called "volts per hertz" control
or v/f control, a drive essentially acts as a power supply
of a selected frequency and proportional voltage. At a
given speed, the motor performs much as it would when
supplied by utility power. For each frequency setting,
motor operation is governed by a torque Vs speed curve that
is similar to the torque Vs speed curve that governs
utility power operation.

what is the difference between c power and U power acb breaker

6324

---

Why are the cores of large transformers built up of circular transactions ?

1965

---

DG SET BLOCK DIGRAM

2234

---

How one can check the MAIN of a house wiring ?

1892

---

Explain what is electric traction? Explain few advantages of electric traction system?

1091

---

Is there any specialised book to refer about fault level calculation both in MV and LV side??

2025

---

If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

2156

---

1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks

2416

---

USE OF 8 WAY PAN ASSEMBLY

1899

---

Explain Circuit Breaker Trip Characteristics in detail.

2091

---

why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

1814

---

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

3188

---

How to calculate or formula to calculate rhe power in 2 phase system ??

1448

---

can u please mail me the syllabus for GET exam for damodar valley corporation?

2010

---

What are the advantages of stationary armature and rotating field system?

1159

---