Page 242 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

Table.2

Name plate details of DC drive

1 Rated supply voltage armature V
2 Rated input current armature A

3 Rated supply voltage electronics supply V
4 Rated supply voltage field V
5 Rated frequency Hz

6 Rated DC current A

7 Overload capability A
8 Rated output KW
9 Power at rated DC current (approx.) w

10 Rated DC voltage field V
11 Rated DC current field A

12 Operational ambient temperature °C
13 Storage and transport temperature °C

14 Installation altitude above sea level °C
15 Dimensions (H x W x D) mm

Lamp load
Connect with main switch/MCB, 4 Nos of 500 W clear lamps fitted in a enclosure having individual ON - OFF
facility.
Table 3
Make & SI.No
Rated Mains V
Rated Power KW

3 Remove the drive cover. Identify and trace the internal connection and get it approved by the instructor.

4 Select the ICTP switch /MCB, cables and fuse - wire according to the rating of the motor.
5 Draw the circuit diagram and connect the ICTP, MCB, drive and the motor, and get it approved by the instructor.
(Fig 1)
6 Connect double earth independently for the main switch, DC drive and the motor.

7 Check the supply and ensure for proper rating of fuses main switch according to the motor rating.
Note : Improper connection of DC drives leads to shock and material damage.

225

CITS : Power - Electrician & Wireman - Exercise 94