APCE
Home
/
News
/
Industry News
/
Ren Yi Electric Encyclopedia: Classification of time relays according to their working principles

Ren Yi Electric Encyclopedia: Classification of time relays according to their working principles

  • Time:2020-07-09 16:06
  • Visits:

(Summary description)Regarding several classifications of time relays, time relays are divided into electromagnetic time relays, air damping time relays, electronic time relays, and electric time relays according to their working principles.

Ren Yi Electric Encyclopedia: Classification of time relays according to their working principles

(Summary description)Regarding several classifications of time relays, time relays are divided into electromagnetic time relays, air damping time relays, electronic time relays, and electric time relays according to their working principles.

  • Categories:Industry News
  • Author:Ren Yi
  • Origin:http://www.scrydq.com
  • Time of issue:2020-07-09 16:06
  • Views:
Information
Ren Yi official website updated on July 9
 
Regarding several classifications of time relays, time relays are divided into electromagnetic time relays, air damping time relays, electronic time relays, and electric time relays according to their working principles.
 
As the delay element in the control circuit, the time relay can be divided into four categories according to the working principle:
 
1. Electromagnetic time relay
 
It is made by the principle of electromagnetic inertia, with simple structure, long life, high allowable operating frequency, but short delay time. Used in DC control loops.
 
2. Air damping time relay
 
It is made by the principle of air damping time delay, the time delay range is wide, up to 0.4~0.8s, and it works reliably. It is a commonly used time relay in machine tools.
 
3. Electronic time relay
 
It is made by the principle of controlling the charging and discharging of the capacitor by the electronic circuit, the volume is small, and the delay range can reach 0.1~300s.
 
4. Electric time relay
 
Made using the principle of a synchronous motor. The structure is complex, the volume is large, but the delay time is long, and the adjustable range is wide, from a few seconds to tens of minutes, and the longest can reach several hours.
 
When choosing a time relay, the main consideration is the delay mode of the delay contact required by the control loop (power-on delay or power-off delay), and the number of instantaneous contacts. Choose different types of time relays according to different usage conditions.
 
The most widely used air damping time relay in machine tool control is the JS7-A series. The delay range is 0.4~60s and 0.4~180s.
 
Sichuan Renyi Electric Co., Ltd. is registered under the name of Ren Yi, a senior technician for substation maintenance, and uses scientific research, knowledge innovation, publicity, promotion, and teaching that the temperature of electrical contacts (connectors) is lower than the temperature of its conductors (wires). The theory and technology of "thermal electrical contacts" produces and sells registered trademark electrical equipment that does not heat electrical contacts (joints), as a whole with patented products.
Keyword:

Previous: Ren Yi Electric Encyclopedia: Can leakage switches replace air switches? The difference between air switch and leakage protector
Next: Ren Yi Electric Encyclopedia: Causes of frequent contactors closing and disconnecting
Previous: Ren Yi Electric Encyclopedia: Can leakage switches replace air switches? The difference between air switch and leakage protector
Next: Ren Yi Electric Encyclopedia: Causes of frequent contactors closing and disconnecting
Today

Today talks about: Solving various electrical disasters from the source of electricity -

Mount Everest on Electricity [Today's Talk]: The difference between "heating" and "overheating"; the three stages of "Electrical Contact Overheating":
2019-11-18
119

119 Safety and firefighting must be done practically. "Superconductivity" cannot solve man-made disasters such as electrical fires!

119 Safety and firefighting must be done practically. "Superconductivity" cannot solve man-made disasters such as electrical fires!
2019-11-09
Pay

Pay special attention to the power safety revolution forum, and Mount Everest discusses electricity-to solve the mystery of a century of electrical disasters in the world of man-made disasters! Solve and eradicate the global ...

Pay special attention to the power safety revolution forum, Mount Everest on electricity-to solve the mystery of a century of electrical disasters and man-made disasters in the world! Solve and eradicate the global problems of air disasters, fires and spontaneous combustion from the source of electricity! Look at the Tianbang in Nanchong and Niuhuang Wan in Chengdu, one of China's ribs. In decades of production practice, how to continuously explore, repeatedly test, reverse thinking, gradually improve, and independently innovative scientific and technological achievements. This intellectual property, which is unique to China in the world, is completely independent, and is sent to the country free of charge. Take a look at the folk "Lao Lai Le", defying academic authority, summoning conscience, calling for revolution, and creating a unique world, how to overcome electrical disasters and man-made disasters, this worldwide problem! Special reminder: This is just advice and advice, not an advertisement. If you believe in an advertisement, or listen to advice and advice, it's up to you. This is a matter of folk merit. Advice and advice do not ask for compensation, do not ask for likes, do not want to be Internet celebrities, improper celebrities, just because of professional responsibility, just because I see someone killed by an electrical disaster, my conscience is also disturbed. WeChat friends, and their respective media think this is positive energy and a good thing. You can be busy reprinting and disseminating the original text (the original propaganda and promotion are not for profit, and I am responsible for mistakes). If the national media wants to propagate and disseminate, first declare: this is not advertising! Without money, who can do it?
2019-11-08
Special

Special attention should be paid to national power safety in summer

History, tradition, and habit believe that: poor contact; weak electrical contacts (joints); electrical contacts whose temperature is higher than (exceeds) the temperature of its conductor (line). The theoretical concept of "electrical contacts overheating" is wrong! It is believed that oxidative corrosion (chemical, electrical corrosion) caused the "electrical contact overheating", which reverses the causality! Please go to the China Renyi Electric Platform (challenge) for academic discussion and debate!
2015-07-23

CONTACT US

 

Email: 577538063@qq.com

Phone:+86 13438175710

ADD

 

128 Hongyang East Road, Qingbaijiang District, Chengdu

CHENGDU BRANCH

 

Room 3101, Tower 2, Raffles City, Wuhou

District, Chengdu,PR China

+86 13438175710
577538063@qq.com

 Copyright © 2022 Sichuan Renyi Electric Co., Ltd. 蜀ICP备12025125号  Powered by：www.300.cn   SEO