Objective: To determine the equivalent circuit parameters of synchronous machine and hence to predetermine the percentage regulation at different power factors.
Open Circuit Test:
The machine is run (as generator) at synchronous speed with armature terminals open. The plot of Vocl Vs If is the OCC (open circuit characteristic) which indeed is the magnetization characteristic of the machine. It exhibits the saturation effects.
Short Circuit Test:
The armature terminals are shorted. The machine is run at synchronous speed while If is gradually increased starting from zero value. The field current needed for ISCL = IFL (rated) is very small. The plot of ISCL Vs If is SCC (short circuit characteristic). The field current being very small this operates in linear region. So SCC is straight line, only one point on SCC corresponding to ISCL = IFL need be determined experimentally.
Measurement of Armature Resistance
Using a dc source, voltmeter and ammeter take a few readings across two terminals of Stator by adjusting the series resistance
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. Three Phase 400V 3KVA 1500rpm synchronous alternator coupled with 5HP DC shunt motor 220V 1500rpm on a common base plate
2. 3/4point DC starter
3. synchronizing panel consisting of 2frequency meters, 2voltmeters, 1synchronscope, 1set of bulbs for dark and bright method, complete with ON / OFF switch and a knife switch for synchronizing
4. Suitable Digital Ammeter AC
5. Suitable Digital Wattmeter
6. Suitable Digital Voltmeter DC
7. Suitable Digital Ammeter DC
8. Suitable Loading rheostat 3?
9. Suitable Single tube rheostat
10. Suitable Double tube rheostat
11. Suitable DC Rectifier unit
12. Phase sequence indicator
Worldwide Institutional Supply & Export Solutions
Advanced Educational, Medical & Technical Laboratory Equipment Manufacturer
INTERLABS is a trusted Indian manufacturer and exporter of educational laboratory equipment, engineering training systems, healthcare teaching products, TVET solutions, medical instruments, communication trainers, clean air systems, and institutional procurement equipment for global educational and healthcare markets.
Educational & Technical Training Systems
Comprehensive STEM learning systems, engineering trainers, electronics communication trainers, embedded control modules, and vocational training equipment designed for schools, universities, polytechnic institutes, and technical education projects.
Healthcare & Medical Equipment Solutions
Professional medical laboratory products, anaesthesia instruments, healthcare teaching systems, institutional medical training products, and procurement support solutions for hospitals, healthcare institutions, NGOs, and government healthcare programs.
Industrial & Clean Air Laboratory Solutions
Clean air equipment, laboratory airflow systems, institutional research products, engineering laboratory systems, and technical infrastructure solutions for industrial, educational, and healthcare laboratory environments.
Global Institutional Procurement & Export Support
We support educational institutions, technical universities, engineering colleges, healthcare projects, vocational training centers, NGOs, ministries, government procurement agencies, and industrial training organizations across Africa, the Middle East, Southeast Asia, and international export markets.
Our export-ready manufacturing infrastructure supports bulk institutional procurement requirements with professional export packaging, OEM manufacturing capability, logistics coordination, and worldwide shipping support for educational and healthcare infrastructure projects.
