Electromagnetic Contactor Mitsubishi S-T35 Elevtric Apparatus For Control
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 kg
- Supply Capability:
- 2000 kg/month
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Specification
Electromagnetic contactor (contactor) refers to an electrical appliance that
uses the current flowing through the coil to generate a magnetic field in
industrial electricity to close the contact so as to control the load. The
contactor is composed of electromagnetic system (armature, stator core,
electromagnetic coil), contact system (normally open contact and normally
closed contact) and arc extinguishing device.
Structural composition
Electromagnetic contactor is mainly composed of transmission device
(electromagnetic mechanism), contact device (actuator) and arc extinguishing
device.
1. Electromagnetic mechanism
The electromagnetic mechanism includes three parts: moving core (armature),
static core and electromagnetic coil. The electromagnetic coil is connected
with current to generate electromagnetic suction and drive the contact to act.
Electromagnetic mechanism is one of the important parts of electromagnetic
contactor. The electromagnetic mechanism is composed of coil, iron core (static
iron core), armature (moving iron core), pole shoe, iron yoke and air gap. The
coil and iron core in the electromagnetic mechanism do not move in the working
state; The armature is movable.
The electromagnetic mechanism converts the electromagnetic energy generated by
the electromagnetic coil into mechanical energy through the action state and
action process of the armature and the corresponding mechanical mechanism to
drive the contact to close or open, so as to realize the control purpose of the
controlled circuit.
2. Contact device
There are many structural forms of contact, which can be divided into: main
contact and auxiliary contact according to the control circuit;
The contact is divided into normally open contact and normally closed contact
according to its original state;
The contact is divided into bridge contact and finger contact according to its
structural form.
3. Arc extinguishing device
Arc extinguishing cover is an insulated and high temperature resistant arc
extinguishing device made of clay and asbestos cement. It is a simple arc
extinguishing device.
When using the arc extinguishing cover device to extinguish the arc, the
longitudinal seam arc extinguishing method is generally used in the arc
extinguishing cover.
Common arc extinguishing devices: arc extinguishing cover (arc resistant clay,
asbestos cement and arc resistant plastic), arc extinguishing grid (arc
resistant grid sheet copper plated thin steel sheet), magnetic blowing arc
extinguishing device (an arc extinguishing coil is connected in series in the
contact circuit).
4. Other components, including reaction spring, buffer spring, transmission
mechanism and shell, etc.
- Q: Various types of contactors are classified
- the solenoid coil has been energized work, resulting in electromagnetic suction, to ensure that the core and armature pull, with moving, static contact Closed
- Q: Basic classification of AC contactors
- The main contact function is to connect and break the main circuit, control the larger current, and auxiliary contact is in the control loop to meet the requirements of various control methods.
- Q: What is the effect of the open contact of the AC contactor and the pushbutton switch?
- Loosen the start button, although the button is disconnected from the coil, the coil is still passed through the auxiliary contact Control line connected, still have electric pull.
- Q: What about the number of AC contactors?
- and the auxiliary normally open contact is disconnected , Thereby cutting off the power supply
- Q: The computer as a host computer
- in the detection of the coil rated voltage at the same time start the timer to start timing, build contact level detection circuit real-time monitoring Change of contact level
- Q: How do I distinguish between contactors and circuit breakers?
- Installation methods are fixed, drawer and so on. According to the size of the current and the level of the working voltage can be divided into a variety
- Q: How to get the relay time parameter
- However, in this way, when the relay is connected to the DC load, the instantaneous value of the single-chip port voltage may be small or close to zero when the AC voltage is alternating due to the alternating current load.
- Q: What causes the AC contactor to be damaged
- Operation circuit power supply capacity is insufficient or disconnected, wiring error and control contact bad contact 3. The coil technical parameters are not in accordance with the conditions of use
- Q: The Development of Electrical Performance Testing Technology for Contactors
- Through the analysis of the collected voltage signal, the time domain signal is transformed into the frequency domain signal by the fast Fourier transform. The result of the transformation is placed in the array of the real part and the imaginary part respectively.
- Q: How does the contactor works
- The magnetic field generated by the static core to produce electromagnetic suction suction core, and drive AC contact point action, normally closed contact open, normally open contact closure, the two are linked
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Electromagnetic Contactor Mitsubishi S-T35 Elevtric Apparatus For Control
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 kg
- Supply Capability:
- 2000 kg/month
OKorder Service Pledge
OKorder Financial Service
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