Relays
Welcome to the Relays!
Type
There are a lot of different relay types, all with their own applications, characteristics and construction. This page lists the different relay types which are described on apogee.
Applications
Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal. Different relays have different functions in different fields, let's check it at this page.
Popular Ariticles
Electrical Relay: Relay Contact Overview
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IntroductionThe relay is an electrical device regarded as a switch in the circuit. That is, the current in the control circuit depends on the "open" and "close" of relay contacts. Therefore, the reliability and service life of the relay depend on the quality and performance of the contacts ...
How Relays Work? Relay Functions and Applications
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Introduction A relay is an electromagnetic switch operated by a relatively small electric current that can turn on or off a much larger electric current. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. Because of unique cha...
How to Test a Relay with Multimeter?
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Introduction A relay is an electronic control device, which has a control system (also called an input loop) and a controlled system (also called an output loop). It is often used in automatic control circuits. In fact, it is an automated switch using smaller current to control a larger&n...
Solid State Relays: A Basic Overview
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I Introduction Solid-state relays(SSRs) have unparalleled advantages over other relays, because it can make and break the circuit without contact or spark. In addition, with the progress of technology, the maturity of manufacturing and the decline in price, solid-state relay has become widely ...
By thermal relay, working principle, structure, classification, protection characteristics, selection, setting principle
Ⅰ The Working Principle and Structure of Thermal Relay1.1 The Role and Classification of Thermal RelayIn the electric drag control system, when the three-phase AC motor runs under abnormal conditions such as long-term under-load and under-voltage operation, long-term overload operation, and lon...
The Types of Common Relay and How to Choose Relay?
By Relay
Warm hints: This article contains about 3000 words and reading time is about 15 mins.IntroductionThis article mainly introduces the commonly used relays. Firstly, it introduces the role of relays. Secondly, it introduces which kinds of common relays are used and the types of common relays. Finally, ...
The Role of the Relay and Its Working Principle
By Relay
Warm hints: This article contains about 4000 words and reading time is about 18 mins.IntroductionA relay is an electronic control device that has a control system (also called an input loop) and a controlled system (also called an output loop). It is usually used in an automatic control circuit. It ...
Basic Knowledge of Relay Electronics Tutorial with Video
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Warm hints: The word in this article is about 3200 and reading time is about 20 minutes.SummaryAs an electric control device,relay(electornic relay) is a kind of electrical apparatus that causes the controlled variable to have a step change in the electrical output circuit when the change...
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