motor Archives - electricalfundablog.com

Synchronous Motor – Construction, Principle, Types, Characteristics

Synchronous motor is one of the most efficient motors. The ability to control their power factor makes it very demandable especially for low speed drives. This post will discuss Synchronous motor, its construction, working principle, types, characteristics, starting methods, applications, model/ phasor diagram, advantages and disadvantages. What is Synchronous Motor A synchronous ...

Auto Transformer Starter

An Auto transformer starter basically uses an auto-transformer to reduce the voltage applied to a motor during its start. As we know that the starting of big motors which are used for prolonged periods exert large current in the circuit. Due to ...

Direct online starter

The most simple and basic type of starter for motors (induction motor) is the Direct Online starter. The Direct on line starter contains an ON/OFF switch and an OLR. Here, OLR stands for overload relay for protection against excessive load current.

Series Motor Starter

A face plate/drum type controller is used for starting the series motor. This controller can also be used to control the speed of a series motor as well as to reverse the direction of its rotation. It is commonly known as Series motor starter.

Four Point Starter

Four point starter is connected to a long-shunt compound motor. If we compare it to the generally used 3 point starter, we can easily mark one remarkable difference than its counterpart. In four point starter, the most critical 'Hold ON coil' (electromagnet) is placed ...

Three Point Starter

The internal wiring for Three point starter is shown in the fig below. The three terminals of the starter are marked A, F and L. One line is directly connected to point L which is further connected to the starting handle (arm) through the overload release. ...

Electric Motor Checker (EMC -22)

Electric Motor Checker is a very useful test equipment that can be used for detecting an electrical-fault (for example - short-circuit, open-circuit, damage of insulating material ...... and many more) in case of motors/other 03 phase equipments in the fastest and easiest way. This Electric Motor ...