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09/11/2022

Selection method of intelligent motor protector and how to solve overload

Users should fully consider the actual needs of motor protection when selecting models, and reasonably choose protection functions and protection methods.Intelligent motor protector manufacturer tells you the basic method of relay selection.

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02/11/2022
Microcomputer integrated protection

[Electrical Introduction] Knowledge of intelligent motor protectors, essential for high-power motor protection

The product takes the microcomputer controller (MCU) as the core component, detects the current through high-precision CT, and the motor protector has the function of automatic linear correction; it can also realize alarm and event recording.

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24/10/2022
NDM1 Series plastic enclosure circuit breakers

How to measure the quality of circuit board relays? How to wire it?

How to measure the quality of circuit board relays?Measure with a multimeter. You can measure the resistance of the relay coil with a multimeter r×10ω to determine whether there is an open circuit in the coil. The resistance of the relay coil is closely related to its working voltage and current, and its working voltage and current can be calculated from the resistance of the coil.

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22

The working principle of thermal relay

Click volume:1670Add time:2021-04-22

Thermal relays are protective electrical appliances used for overload protection of motors or other electrical equipment and electrical circuits.

21

Precautions for using motor protector

Click volume:1584Add time:2021-04-21

The purpose of selecting a motor protection device is to enable the motor to give full play to its overload capacity, avoid damage, and improve the reliability of the electric drive system and th...

20

The main function of the motor protector

Click volume:1501Add time:2021-04-20

In addition to the general protection function, it also has functions such as self-start, communication start and close, undercurrent, overvoltage, undervoltage, three-phase current imbalance, an...

19

The difference between relay and contactor

Click volume:1633Add time:2021-04-19

The working principle of relay and contactor is the same. The main difference is that the main contact of the contactor can withstand large current, while the relay contact can only withstand sma...

16

How the circuit breaker works

Click volume:1421Add time:2021-04-16

Circuit breakers are generally composed of contact system, arc extinguishing system, operating mechanism, trip unit, shell and so on.

15

Types of relays

Click volume:1428Add time:2021-04-15

There are many types of relays, mainly electromagnetic relays, thermal relays and time relays.

14

Reliability of the relay

Click volume:1309Add time:2021-04-14

The influence of various conditions on the reliability of the relay

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