Load Test
The load test is conducted to evaluating the performance, voltage regulation of the DC machine. This test works by overloading the machine to the full capacity and the power generated is at the input and output.
Formula
Efficiency (η) = Input Power / Output Power
The efficiency is calculated as the quotient of the output power to the input power, and the voltage regulation is based on the comparison of the no-load with full-load voltages. Through this test, the machine’s actual performance will be assessed while it is operated under normal conditions.
Testing of DC Machine
The direct current (DC) machines have been from the beginning of electrical engineering studies, since the end of the 19th century. They are used in many different industries such as manufacturing and transportation, and they are still applicable even though the current age is digital. The quality performances and dependability of these machines are the most important factors during their whole lifespan. This is why they are subject to extensive testing.
Testing is a tool that helps us to determine the functions of the machine, show if there are any mistakes, and correct them if needed. It also serves to define the instrument, which is an important criterion of its energy conservation and cost-effectiveness. Here we will consider the DC machine’s test type, procedure, and value.
Table of Content
- Definition of Testing
- Types
- Open Circuit Test
- Short Circuit Test
- Load Test
- Determination of Efficiency
- Applications