Common Types of Relays and Principles

What are the relays that can be divided according to the principle? The following Automotive Relay Manufacturer will take you to see these ten relays:
The signal relay is a commonly used device in the automatic control system. It is generally used to turn the circuit on and off. It releases the control command and reflects the status of the device by dropping the card. After the device returns to normal, the signal is released by the reset signal card. Important originals for automatic control and remote control circuits.
2. Electromagnetic relay
A relay that produces a predetermined response by the relative motion of mechanical components under the action of current in the input circuit. It includes DC electromagnetic relay, AC electromagnetic relay, magnetic holding relay, polarization relay, reed relay, energy-saving power relay.
3. Magnetic holding relay
The magnetic holding relay adopts the principle of energization to generate a magnetic field, that is, a "normally open, normally closed" contact, a static contact that is in an open state when the relay coil is not energized, and is called a "normally open contact"; The contact is called a "normally closed contact", and the principle that the magnetic holding relay developed so far can work is the same.
4. Solid state relay
A relay in which the input and output functions are completed by electronic components without mechanical moving parts.
5. Time relay
When the input signal is added or removed, the output part needs to be delayed or time-limited until the specified time to close or open the relay of its controlled line. A relay is an electrical control device that is an electrical device that causes a predetermined step change in the controlled output quantity in the electrical output circuit when the change in the input amount (excitation amount) reaches the specified requirement. It has an interaction between the control system (also known as the input loop) and the controlled system (also known as the output loop).
Power Relay
Power Relay
6. Temperature relay
A relay that operates when the outside temperature reaches a specified value. More relays are used in industry, such as current digital display, voltage digital display, grating digital display, pressure digital display, inverter speed digital display, sensor digital display, frequency digital display, etc. A lot, its role is mainly to monitor the role of notification.
A power relay is a device that can make a transition in one or more electrical output circuits when the input (or excitation) meets certain specified conditions. It can be used in a neutral point direct grounding system as a directional component for zero sequence current protection. Power relay can be analyzed and researched according to the following points: shape and installation method; input parameters; output parameters; environmental conditions; electromagnetic compatibility; installation and use requirements.
8. Wind speed relay
When the speed of the wind reaches a certain value, the controlled circuit will be turned on or off.
9. Acceleration relay
When the acceleration of the moving object reaches the specified value, the controlled circuit will be turned on or off.
10. Safety relay
The safety relay can control the current. In order to facilitate the construction of the safety circuit, the safety relay and other components are combined, and the basic emergency stop circuit and the safety circuit are called the safety relay module.

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How to Buy a Good Relay?

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As a  Power Relay Manufacturer , I often meet some customers who say that the quality of your relay is still ok, it is more expensive. Some customers say that I want good quality and cheaper prices. Here, we give everyone a generalization. In fact, the good or bad of Power Relay, 60% is determined by the contacts, reeds, outer casing, thin wire, base, etc. of the relay, and 40% of them are assembled in the relay. Determined in the process. Think about it, if the relay parts are poor, how well the relays are assembled on the production line, and will not make good  PCB Power Relays . Just like a chef, you give him poor raw materials, how good his cooking skills are, and he can't fry good dishes. Therefore, if you have a piece of money and a good quality, it will be more expensive. Power Relay So how do we see the relays are good and bad? If you are interested in researching and taking two different brands, you can see the difference if you study it carefully. Take our relay
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What Are The Methods For Relay Debugging?

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What are the methods for  Relay Debugging ? The following small series explains for you: 1. Before using the relay, check whether there is any damage caused during transportation. Set the relay to the first setting point, turn the movable system to the magnetic pole direction by hand, and then release it. The movable system should be turned back to the original. Position until the stop. 2. When the relay is re-adjusted, it must be guaranteed: a, the axial movement of the movable system is between 0.15 ~ 0.25mm; b. The air gap between the moving piece and the magnetic pole should be uniform. Under any action, the moving piece and the magnetic pole should not touch each other; c. During the action, the movable system must not be stuck in the middle position; d. When the pointer is rotated from the first scale to the maximum scale, the loops of the hairspring shall not touch each other; e. When the contact is in the open position, the total air gap between the static and dy
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Analysis Of The Development Prospects Of Relay Industry

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