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Explosion-proof magnetic starter working principle and product features

Author: source: Datetime: 2018-11-07 14:31:23
Explosion-proof magnetic starter working principle and product features
The explosion-proof magnetic starter consists of a steel stamped casing, a steel floor, an AC contactor, a thermal relay and corresponding wiring. It should be equipped with a start-stop button switch and correctly connected to the manual signal cable. When the start button is pressed, the AC contactor coil installed in the magnetic starter is energized, the armature drives the contact group to close, and the power supply (generally the motor) is turned on, and the auxiliary contact is self-locked. When the stop button is pressed, the internal AC contactor coil loses power, the contacts are disconnected, and the power supply for the appliance is turned off and unlocked.
 

Depending on the control requirements, the magnetic actuator can also be flexibly wired to enable electric and equal functions. The built-in thermal relay provides overload protection for the motor being controlled. The setting current of the thermal relay should meet the motor power requirements. Explosion-proof magnetic starter Features: 1. The outer casing is made of cast aluminum material, molded and beautiful. It has the advantages of anti-aging, no deformation, impact resistance, antistatic and corrosion resistance.

出货图片 拷贝

2. This product adopts labyrinth waterproof structure and has good waterproof and dustproof function.
3. All exposed fasteners are made of stainless steel, sealed with silicone rubber, resistant to oil, acid, alkali and high temperature.
4. The built-in components are shaped by the company, and components such as AC contactors, thermal relays, and circuit breakers are installed.
5, can control the AC 50Hz, 380V three-phase asynchronous motor direct start stop, and has overload and phase failure and loss of voltage protection.
The explosion-proof magnetic starter is a full-voltage direct start, which allows the full-pressure direct start in both the grid capacity and the load. The advantages are convenient operation control, simple maintenance and economical. Mainly used for starting low-power motors, this method should not be used for motors larger than 11kw.
 
The explosion-proof magnetic starter is structurally composed of an AC contactor and a thermal relay. A protective magnetic starter with a closed casing and an open magnetic starter without a casing. Magnetic starters are commonly used for operating switches of locally controlled or remotely controlled motors. The thermal relay in the magnetic starter has the protection feature of breaking the circuit when it is overloaded. The voltage loss protection is realized by the AC contactor (when the button is operated), the magnetic starter does not have the function of short circuit protection, and the motor is The main circuit is connected to the fuse.

● The outer shell is made of aluminum alloy for casting and the surface is high-voltage electrostatically sprayed;

● Zone 1 and Zone 2 hazardous locations;
● IIA, IIB T6 and below groups of explosive gas environment;
● Widely used in dangerous places such as petroleum, chemical, offshore platforms, military, and docks. It is used in the AC circuit to control the direct start, stop or forward and reverse (reversible) of the three-phase squirrel cage asynchronous motor, and has the functions of voltage loss, overload and lack of equal protection. It can be set to control two places or multiple places.
The magnetic starter consists of a steel stamped casing, steel floor, AC contactor, thermal relay and corresponding wiring. It should be equipped with a start and stop button switch and correctly connected to the manual signal cable. When the start button is pressed, the AC contactor coil installed in the magnetic starter is energized, the armature drives the contact group to close, and the power supply (generally the motor) is turned on, and the auxiliary contact is self-locked. When the stop button is pressed, the internal AC contactor coil loses power, the contacts are disconnected, and the power supply for the appliance is turned off and unlocked.
 
Depending on the control requirements, the magnetic actuator can also be flexibly wired to enable electric and equal functions. The built-in thermal relay provides overload protection for the motor being controlled. The setting current of the thermal relay should meet the motor power requirements.
 
The magnetic starter is a full-voltage direct start, which allows the use of full-voltage direct start in both the grid capacity and the load. The advantages are convenient operation control, simple maintenance and economical. Mainly used for starting low-power motors, this method should not be used for motors larger than 11kw.
 
The magnetic actuator is structurally composed of an AC contactor in a thermal relay. A protective magnetic starter with a closed casing and an open magnetic starter without a casing. Magnetic starters are commonly used for operating switches of locally controlled or remotely controlled motors. The thermal relay in the magnetic starter has the protection feature of breaking the circuit when it is overloaded. The voltage loss protection is realized by the AC contactor (when the button is operated), the magnetic starter does not have the function of short circuit protection, and the motor is Main circuit mounting fuse
 
Explosion-proof magnetic starter product features;
1. The outer shell of this product adopts ZL102 aluminum alloy die-casting or steel plate welding forming, high-voltage electrostatic spray on the surface, with stainless steel exposed fasteners, and the product looks beautiful.
2. Explosion-proof electromagnetic starter adopts composite type and modular structure. Each circuit can be assembled freely according to requirements. The general switch box adopts explosion-proof structure, and the bus box and outlet box adopt increased safety structure.
3, built-in AC contactor, thermal relay, control button or switch, can also be operated on the box surface or remotely, or two places, with breaking, overload, voltage loss protection and short circuit automatic cut-off function.
4, can be customized according to customer requirements, such as the installation of surge protectors, ammeters, voltmeters, etc., can be equipped with a padlock metal handle.
5, explosion-proof magnetic starter is suitable for controlling multiple motors, each branch can be equipped.
6, circuit breaker protection, can also be equipped with power for lighting or instrumentation.
7, steel pipe or cable wiring can be.
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