Page 262 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

EXERCISE 99 : Check wiring on UPS & Inverter

Objectives
At the end of this exercise you shall be able to
• record the details of UPS
• check wiring of the UPS
• record the details of UPS
• check the wiring of inverter.
Requirements

Tools/Instruments
• Trainees kit - 1 Set • Battery 12V/120AH - 1 No.
• Portable electric drilling machine 6mm - 1 No Materials/Components
• Star head screw driver set (set of 6mm) - 1 No.
• Rawl jumper No.8 - 1 No. • 4 way MCB -20A - 1 No.
• Cutting plier 150mm - 1 No. • 1.5mm2 P.V.C. copper (1/18)wires - as reqd.
• D.E spanner set 6mm-25mm - 1 Set • Auto wires (stranded) - as reqd.
• Ballpein hammer 0.75 kg - 1 No. • I.C.D.P switch 16A/250V - 1 No.
• Single phase energy meter 250V/15A - 1 No • 4 way MCB/ICDP20 A switch - 1 No.
• Multi pin socket 3/5 pin 250V/6A - 1 No. • Power socket 250 V/16A - 1 No.
Equipments/Machinery • Multi pin wall socket 250V/6A - 1 No.
(2 in one) with switch

• 200W/250V/6A -inverter - 1 No. • Grease/Vaseline - as reqd.

Procedure t

TASK 1: Record the details of UPS
1 Record name plate details

Sl.No Description Value Remarks
1 Name of manufacturer
2 Model No
3 Sl.No
4 Capacity KVA

5 Type Online / offline /Line interactive
6 Type of battery VRLA / SMF / Ni-Cd/Li-ion
7 No of batteries
8 Voltage of battery bank
9 Combination of battery bank

10 Capacity of 1 battery

TASK 2:

1 Trace wiring of UPS and verify with instruction manual of manufacturer.
2 Test the insulation resistance between conductor and body of UPS.
3 Test earth continuity.
4 Check tightness of connections of battery and UPS terminals.

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CITS : Power - Electrician & Wireman - Exercise 98