1.2A 1No. 7 Tachometer Digital 0 10,000 rpm 1No. THEORY:- Swinburn`s test is also known as no-load test or losses method. It is a simple method in
Spring Balance. 0-10Kg. 2 No. Theory: This is a direct method of testing a dc machine. It is a simple method of measuring motor output, speed and efficiency etc., at different load conditions. A rope is wound round the pulley and its two ends are attached to two spring balances S1 and S2.The tensions provided by the spring.
40.4 Swinburne's Test. For a d.c shunt motor change of speed from no load to full load is quite small. Therefore, mechanical loss can be assumed to remain same from no load to full load. Also if field current is held constant during loading, the core loss too can be assumed to remain same. In this test, the motor is run at rated
8.2-Theory: The losses during no load conditions of a d.c shunt machine will be iron loss, friction and wind age loss, field copper loss. If those losses are measured during no. load condition, then efficiency of a d.c shunt machine either as a generator or as a motor no. load losses can be measured by a Swinburne's test in
Swinburne's test is the simplest indirect method of testing dc machines. In this method, the dc machine (generator or motor) is run as a motor at no-load and losses of the machine are determined.
This method is an indirect method of testing a DC machine. It is named after Sir James Swinburne. Swinburne's test is the most commonly used and simplest method of testing of shunt and compound wound DC machines which have constant flux. In this test the efficiency of the machine at any load is pre-determined.
(vii) Indicating light. (viii) Educational type insulated terminals. THEORY. The efficiency of the DC machine can be accurately determined by the regenerative method, normally known as Hopkinson's test. This test overcomes the drawback of Swinburne's test, which does not take any account of the stray load losses occurring
S. No. List of Experiments. Page No. 1. Magnetization characteristic of DC shunt generator. 7 - 9. 2. Load test on DC shunt generator. 10 - 12. 3. Load test on DC series generator. 13 - 15. 4. Load test on DC compound generator. 16 - 18. 5. Hopkinson's test on DC shunt machines. 19 - 22. 6. Field's test on DC series
Swinburne's Test on dc motor. 5. Retardation test on dc shunt motor. 6. Regenerative test on dc shunt machines. 7. Load test on three phase induction motor. 8. No load and Blocked rotor test on three phase induction motor to draw (i) equivalent . Come prepared to the lab with relevant theory about the Experiment you are
TESTING. OF D.C.. MACHINES ! ? Brake Test. ? Swinburne's Test. ? Advantages of Swinburne's. Test. ? Main Disadvantages. ? Regenerative or. Hopkinson's Test. ? Alternative Connections for. Hopkinson's Test. ? Merits of Hopkinson's Test. ? Retardation or Running. Down Test. ? Field's Test for Series Motors.

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February 2018