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Updated by risa-olsen1 on Jul 21, 2021
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10 Electric Motor Testing Techniques

We often take the motors in our lives for granted. From electric appliances to transportation, motors are powering the modern world. They're also one of the most complex and sophisticated components of a device. That's why it’s important to make sure that they're working properly, before they cause any damage. Here, are some ways you can test your electric motor to make sure it's operating at its best.

1

Static or Insulation Testing

Electrical motors are a major part of daily life. They are found in appliances, air conditioners, medical equipment and more. Without them we would live in a very different world. Motors produce rotating motion by converting electrical energy into mechanical energy. They also work against the earth’s magnetic field to create an electric current. Here are some ways to test the insulation of an electric motor and how it works.

2

DC Hipot Test

A dc hipot test is a type of insulation resistance test applied to electrical equipment. It is a safety device that can be used to detect faulty wiring or an exposed conductor. A dc hipot tester is typically a hand-held device that is connected to the cables of the device being tested and then checked for proper resistance levels. Below, we’re going to take a look at some of the most common reasons for performing this type of test and how it works.

3

Electric Motor Impulse Testing

Whether you’re an experienced electrical engineer or a first-time DIYer, it’s important to have the right tools. One of those tools is an impulse tester. This device measures how much electric current an electric motor can take before reaching a maximum voltage limit.

4

Electric Motor Rotation Testing

When it comes to machine break downs in your facility, you need to be able to troubleshoot the issue quickly. One of the first things a machine operator will do is check if the electric motor rotation is working. The electric motor rotation test will tell you if the problem is with the armature or field coil, which are both components of the electrical circuit which gives power to the motors.

5

Wound Rotor Electric Motor Testing

A wound rotor electric motor test checks for the health and functionality of an electric motor's components, specifically its rotor. This type of electric motor is used to supply power to devices such as washing machines, refrigerators, air conditioning units, and dishwashers.

6

Electric Motor Insulation Resistance Testing

Electrical motor insulation is a key factor in determining the lifespan of an electrical motor. If the insulation fails, there’s a risk that the windings will short, potentially causing the motor to catch fire and/or overheat.

7

Meg-ohm Test

The insulation is used to protect against the electrical current flowing from one point on a circuit to another. The insulation does not conduct electricity and so provides the electrician and user with a safety barrier. In order for the insulation material to be effective,

8

PC tests

Electric Motor PC Tests are tests that are performed on electric motors. These tests generally fall into two categories: Electrical and Mechanical. Electrical tests include short circuit testing, insulation resistance testing, and power frequency testing.

9

Winding Resistance Test

Electric motor winding resistance is the amount of opposition that a coil of wire inside a motor encounters when it is being wound around the core of the motor. It is measured in ohms. As such, it can be calculated by the equation: R = ΩL/N where R refers to resistance, Ω refers to ohms, L refers to length in meters, and N refers to number of turns.

10

DC Step Voltage Test

If you are a current or prospective electrician, it is important to understand the importance of voltage and how it relates to motors. This article will help you understand more about volts and amps. The first thing you need to know is that there are two types of voltage: AC and DC. In this article, we will be focusing on DC voltage.