Objective: To conduct Hopkinson?s test on the given pair of identical dc machines and obtains item performance characteristics
Preview:
Swinburne?s test on a dc machine is a non-loading test. The machine performance can be computed from the data obtained from this test without actually loading it. In certain situations a dc machine has to be tested by actually loading it particularly for a heat-run test where the machine is fully loaded for a long period to determine its steady state temperature rise. Such a test may not be feasible for machines of even moderate size and such load test even where feasible is highly wasteful of energy for the heat-run test.
In a manufacturing concern a number of identical machines may be on production line. Two such machines can be put on a test and coupled mechanically. These machines can then be tested by the Hopkinson?s test where these two machines are connected in parallel across the supply. By adjusting their excitations both of them can be simultaneously loaded (to any extent) where one machine (motoring) feeds mechanical power to the other machine (generating), while the generating machine feeds electrical power to the motoring machine. The only power drawn from the mains is the losses of both the machines. Load test and heat-run test could thus be conducted with very little energy consumption while the machines carry full load current at rated voltage.
Equipment Required: All the measuring instruments associated with each experiment are industrial grade. These instruments are housed in an elegant cabinet as a package. Range of instruments and accessories (standard format)
1. 2HP Shunt machines mechanically coupled both are identical 220V 2HP 1500rpm.
2. 3-4 point DC Starter for the above
3. Suitable Loading rheostats
4. Digital tachometer
5. Suitable double tube rheostat
6. Suitable single tube rheostat
7. Suitable digital Voltmeters DC
8. Suitable digital ammeters DC.
9. Suitable DC source ?Rectifier unit
HOPKINSON?S TEST for Institutional & Laboratory Applications
HOPKINSON?S TEST is designed for engineering colleges, technical universities, STEM laboratories, and TVET training centers. Interlabs manufactures export-quality engineering training systems for institutional procurement projects, technical education programs, laboratory modernization, and international supply requirements across Zambia, Botswana, Kenya, and Nigeria.
Applications of HOPKINSON?S TEST
This equipment is widely used for technical education, engineering practical training, industrial automation learning, and laboratory demonstrations. It supports practical learning environments, institutional laboratory setups, technical training programs, and advanced educational applications.
Suitable For
- Universities and educational institutions
- Research laboratories and training centers
- Government and institutional procurement projects
- African laboratory infrastructure programs
- Technical and vocational education facilities
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Why Choose Interlabs?
- Educational laboratory equipment manufacturer and exporter
- OEM and custom manufacturing support available
- Export-ready packaging and documentation assistance
- Suitable for institutional and government projects
- Global shipping and bulk supply capability
Global Export Support
Interlabs supplies laboratory equipment and institutional training systems to buyers across Zambia, Botswana, Kenya, and Nigeria with secure export packaging, documentation support, and international logistics assistance.