Page 19 - Electrician -1st Year - TT

Professional Perform testing, 90.Practice for range extension and Errors and corrections in measure-
Skill 25 Hrs.; verify errors and calibration of various measuring in- ment.
calibrate instru- struments. (10 Hrs.)
ments. 91.Determine errors in resistance mea- Loading effect of voltmeter and volt-
Professional (NOS: N/A) surement by voltage drop method. (8 age drop effect of ammeter in cir-
Knowledge hrs) cuits.
05Hrs. Extension of range and calibration
92.Test single phase energy meter for of measuring instruments. (05 hrs.)
its errors. (7 Hrs.)

Professional Plan and carry out 93.Dismantle and assemble electrical Working principles and circuits of
Skill 75 Hrs.; installation, fault de- parts of various electrical appliances common domestic equipment and
tection and repairing e.g. cooking range, geyser, wash- appliances.
of domestic appli- ing machine and pump set. (25 Hrs.) Concept of Neutral and Earth. (10
Professional ances. 94.Service and repair of electric iron, hrs.)
Knowledge 10 (NOS: PSS/N6003) electric kettle, cooking range and
Hrs. geyser. (12 Hrs.)
95.Service and repair of induction heater
and oven. (10 Hrs.)
96.Service and repair of mixer and
grinder. (10 Hrs.)

97.Service and repair of washing ma-
chine. (13Hrs.)

Professional Execute testing, 98.Verify terminals, identify components Working principle, construction and
Skill 75 Hrs.; evaluate perfor- and calculate transformation ratio of classification of transformer.
mance and main- single-phase transformers. (8 Hrs.)
tenance of trans- Single phase and three phase
Professional former. 99.Perform OC and SC test to determine transformers.
Knowledge 12 and efficiency of single-phase trans- Turn ratio and e.m.f. equation.
Hrs. (NOS: PSS/ former. (12Hrs.)
N2406, PSS/ Series and parallel operation of
N2407) 100 Determine voltage regulation of single- transformer.
phase transformer at different loads
and power factors. (12 Hrs.) Voltage Regulation and efficiency.
101 Perform series and parallel operation Auto Transformer and instrument
of two single phase transformers. (12 transformers (CT & PT). (12 Hrs.)
Hrs.)
102 Verify the terminals and accessories
of three phase transformer HT and LT
side. (6Hrs.)
103Perform 3 phase operation (i) delta- Method of connecting three single
delta, (ii) delta-star, (iii) star-star, phase transformers for three phase
operation.
(iv) star-delta by use of three single phase
transformers. (6 Hrs.) Types of Cooling, protective devices,
bushings and termination etc.
104Perform testing of transformer oil. (6
Hrs.) Testing of transformer oil.

105Practice on winding of small trans- Materials used for winding and wind-
former. (8 Hrs.) ing wires in small transformer.
106Practice of general maintenance of (06 Hrs.)
transformer. (5 Hrs.)

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