A motor magnet starter is a series of contacts triggered by an electromagnetic starter to start and stop the associated motor load. A control circuit, in which a transitional contact device is connected to a magnetic starter circuit, performs the task of starting and stopping.
The following mechanism forms a three-pole voltage with a magnetic starter:
• Set permanent contacts
• A number of non-permanent contacts
• compression springs
• solenoids
• Stationary electromagnets
• Set magnetic shading circuit
• Detachable fixture
The magnetic starter is a full voltage starter that offers thermal overload and immediate protection for the collector cage motor. This can be controlled automatically or remotely with the press of a button when you are not in front of the machine. The goal is that the engine is not too hot. The correct measure of the load on the motor is the current drained from the motor. Due to its protective function, it is called an overload device. If excess power is diverted from the motor, it will overheat.
The main purpose of the 3 phase automatic motor starter is to provide safety in the event of thermal overload. Not designed to cut fault current A short circuit test should always be performed to determine whether protection against fault current is required and whether there is a fault current providing short circuit protection. The magnetic starter hold circuit is designed to be disengaged whenever the line voltage drops below sixty percent of its regular value, ensuring safety for the motor on or on.
It is very important to remember that a solenoid motor starter is a contractor that has a build-up of an overload relay unit that does the job of overloading the motor protection. The selection of thermal load relays is based on the manufacturer's table integrated in the magnetic starter. Also, make sure you know the full load current (FLC) of the motor, the motor operating factor (SF) and the ambient temperature at which the instrument will be activated. The thermal element is usually based on a temperature of about forty degrees Celsius or one hundred- and four-degrees Fahrenheit.
The motor magnetic starter includes the three most commonly used main jacks. This contact is usually open. This setting is used when starting a three-phase motor. Three-phase electricity is used by nearly all institutional, commercial, or industrial facilities in the United States. In some areas, such as New York State and some other areas, two-phase and four-phase electricity are used. In this case, you can order 4 regularly open sockets for the motor magnetic starter. They are available in various sizes. The smallest items are almost the size of a relay, and the largest starters can take up almost any space in a room.
Other types of special magnetic starters are the reversible motor starter for the reverse motor and the multi-speed motor starter which is used for the special electric powered multi-speed motor.
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