Star delta problem pdf how to#

Now, I am going to explain each one in detail, if you carefully read all the following steps, I am sure you will be able to fix the electric motor tripping problem.

Check the fuses if connected in Star Delta connection.

Check the setting values for the motor from HMI screen, if connected with HMI and PLC.

Check the motor from down side, if submersible motor.

Check the relays, if connected with star delta connection and if overheating according to weather or motor over current or due to reverse direction of the motor.

Check the timer setting values for time and rated current.

Check the direction of the motor clockwise or counter-clockwise.

Star delta problem pdf how to#

Check the continuity of the cable using Digital multimeter ( how to check cable continuity).

This can also be due to the wrong selection of the circuit breaker, wires, or contactors, which do not fulfill the basic requirement of the electric motors and as a result the electric motor trips.īy going through the entire following tests, you can easily find the reason behind the electric motor tripping, and once the reason is known then fixing the problem is mater of few minutes. These problems may be at a small level or high level, the electric motor tripping may be due to wrong connections or may be due to the wrong timer settings, or may be due to the weather changing like the hot weather, due to which the circuit breakers keep tripping.

Why Tripping Problem:Įngineers and technicians working in different industries, manufacturing companies, electrical power companies, or water treatment plants or irrigation etc, face many problems regarding the electrical motors. This tripping of the circuit breaker may be due to some issues, so the reason behind the constant tripping should be find out and fixed. No doubt the tripping of the circuit breaker ensures safety, but it can get quite frustrating, if the circuit breaker constantly start tripping and getting the power back on repeatedly. Imagine the situation, if there is a short circuit or overload current and there is no circuit breaker trips, then fires would have been quite common issue. The electrical circuit breaker cuts off the electricity to keep your circuits from overheating or causing more damage. So, an electrical circuit breaker is the main device that protects your all electrical devices and machines because it trips when too much electricity flows through it or when it cannot handle the excess current load. Circuit breakers can be operated manually and automatically.

an electrical circuit breaker is used for controlling and protecting the electrical power system, and the electrical devices connected to it. You know very well about the electrical circuit breakers, because these are the type of electrical devices which are commonly used in house, building, industries, etc. This life span of the electric motor depends on the proper maintenance, without which they are likely to break down much quicker. No matter which type of the electric motor you pick from the market, every electric motor has a predetermined life span which typically ranges from 30,000 to 40,000 hours, this information is usually provide in the electric motor catalogues or datasheet. Apart from the screw drivers, pliers, etc following are the test equipments which you will need.īefore, I am going to explain how to find the cause of electric motor tripping, there are a few things, that I believe you should know, so that you can easily understand the whole picture. To find the issue/problem/cause of electric motor tripping, you should have some instruments and test equipments. Needed Instruments for the Electric Motor Troubleshooting: Without any further delay, let’s get started!!! These tests apply to all types of the electric motors. I will share with you 10 easy to follow steps which can be used to find the problems that cause the electric motor tripping. So, this article is all about how to find the reason of electric motor tripping, and then how to easily fix the issue. 6) Electric Motor Star Delta Connection.Įlectric motor tripping reasons and how to fix them- The electric motor tripping may be due to a couple reasons, it may be due to the circuit overloads, short circuits, ground fault surges, low resistance, over-heating, contamination, vibration, cable/wire is cut, due to the motor direction clockwise or anti-clockwise, timer settings, breaker rating, fuse, cable insulation, due to the wrong values selection in the HMI or SCADA system used to control an electric motor, or power supply etc.Needed Instruments for the Electric Motor Troubleshooting:.