Page 19 - Electrician 1st year - TT - Telugu

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

Professional (NOS: N/A) 93. Dismantle and assemble electrical Working principles and circuits of
Skill 75 Hrs.; Plan and carry out parts of various electrical appli- common domestic equipment and
ances e.g. cooking range, geyser,
appliances.
installation, fault washing machine and pump set. Concept of Neutral and Earth.
Professional detection and re- (25 Hrs.) (10 hrs.)
pairing of domestic
Knowledge appliances. 94. Service and repair of electric iron,
10 Hrs. electric kettle, cooking range and
(NOS: PSS/N6003) 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
Skill 75 Hrs.; evaluate perfor- and calculate transformation ratio of and classification of transformer.
mance and main- single-phase transformers. (8 Hrs.)
tenance of trans- 99. Perform OC and SC test to determine Single phase and three phase
Professional former. and efficiency of single-phase trans- transformers.
Knowledge 12 former. (12Hrs.) Turn ratio and e.m.f. equation.
Hrs. (NOS: PSS/
N2406, PSS/ 100 Determine voltage regulation of Series and parallel operation of
N2407) single-phase transformer at different transformer.
loads and power factors. (12 Hrs.) Voltage Regulation and efficiency.
101 Perform series and parallel opera- Auto Transformer and instrument
tion of two single phase transformers. transformers (CT & PT). (12 Hrs.)
(12 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 devic-
es, 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
former. (8 Hrs.) winding wires in small transformer.
106Practice of general maintenance of (06 Hrs.)
transformer. (5 Hrs.)

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