131453 ELECTRICAL MACHINES LABORATORY – I Syllabus EEE 4th Semester, Anna University of Technology

AIM

To expose the students to the operation of D.C. machines and transformers and give them experimental skill.

1.           Open circuit and load characteristics of separately and self excited DC shunt generators.

2.           Load characteristics of DC compound generator with differential and cumulative connection.

3.           Load characteristics of DC shunt and compound motor.

4.           Load characteristics of DC series motor.

5.           Swinburne’s test and speed control of DC shunt motor.

6.           Hopkinson’s test on DC motor – generator set.

7.           Load test on single-phase transformer and three phase transformer connections.

8.           Open circuit and short circuit tests on single phase transformer.

9.           Sumpner’s test on transformers.

10.        Separation of no-load losses in single phase transformer.

TOTAL: 45 PERIODS

Requirement for a batch of 30 students

S.No.	Description of Equipment	Quantity required	Quantity available	Deficiency %
1.	D.C motor – Generator set D.C motor – Shunt Generator D.C motor – Compound Generator	2 set 2 set
2.	D.C. Shunt Motor	2 Nos.
3.	D.C. Series Motor	1 No.
4.	D.C. Compound Motor	1 No.
5.	Single phase transformers	7 Nos.
6.	Three phase transformers	2 Nos.
7.	D.C. Motor – Alternator set	4 sets
8.	Three phase Induction Motor (Squirrel cage)	3 Nos.
9.	Three phase slip ring Induction Motor	1 No.
10.	Single phase Induction Motor	2 Nos.
11.	Resistive load 3 phase – 2 , single phase - 3	5 Nos.
12.	Inductive load	1 No.
13.	Single phase Auto transformer	5 Nos.
14.	Three phase Auto transformer	3 Nos.
15.	Moving Coil Ammeter of different ranges	20 Nos.
16.	Moving Coil Voltmeter of different ranges	20 Nos.
17.	Moving Iron Ammeter of different ranges	20 Nos.
18.	Moving Iron voltmeter of different ranges	20 Nos.
19.	Wire wound Rheostats of different ratings	30 Nos.
20.	Tachometers	10 Nos.
21.	Single element wattmeters of different ranges     UPF / LPF	20 Nos.
22.	Double element wattmeters of different ranges	4 Nos.
23.	Power factor meter	2 Nos.
24.	Digital multimeter	5 Nos.
25.	Three point starter, four point starter,DOL starter, manual star / delta starter, semi automatic and fully automatic star / delta starter	1 No each for study experiment