Answer Posted / govind bisht

Assume PF of transformer is .8.
rating of transformer=1500kVA=1500X.8=1200kW
V=433(3phase)
So that maximum current-
I= P/V*PF
=1200*1000/1.732*433*.=1600A
So cable size required if copper cable
1mm=4amp= 400sqmm(by consedering all factors)
For aluminium cable
1mm=2.5A=640sqmm

physical identification of HT & LT panel

1669

---

v/f drive basic princeple

2467

---

in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}

2852

---

What type of fittings and electrical accessories can be install in radiation area ?

1748

---

specify the inbuilt protections in DG

2057

---

The principle of switching circuits for different types of batteries in application of storage systems

1957

---

role of europe union in UK safety legistlation (electrical safety)

1760

---

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

6400

---

Explain thin film resistors and wire-wound resistors

1015

---

What are m circles?

1089

---

As you achieve greater success with the company after some years, Will you like to be a share holder in our company?

2804

---

why single CT used in DOL starter power circuit?

2512

---

draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups 

2391

---

Is there any type of starter for DC motor other than two point,Three point and Four point starters?

2036

---

8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

9272

---