Relay News
If a short-circuit copper sleeve (or short-circuit coil) is placed between the coil and the iron core of the electromagnetic voltage power relay, the armature can not be pulled in or released immediately after the coil receives a signal or the signal disappears, and it takes a certain period of time. action. This kind of power relay is called electromagnetic time power relay, and its structure principle and symbol are shown in Figure 1-6a and b. This kind of component is essential in situations where delayed action or work in a certain time sequence is required. For example, in Figure 1-4, although the power supply voltage exceeds the user's specified value, it can return to normal in a very short time. At this time, it is not necessary to cut off the circuit to ensure the normal use of electricity by the user. For this purpose, a time power relay can be used to control, as shown in Figure 1-6c.
Product features of Subminiature Power Relay Model 932 1，20A contact switching capacity 2，The dielectric withstand voltage between coil and contact is 5kV 3，High sensitivity, power consumption 0.2W 4，UL insulation class: Class F 5，Applicable to household appliances, intelligent furniture, leakage protectors, instruments, communication devices, intelligent remote control systems
From here, we can clearly see that because the electromagnetic power relay adopts such a working principle and structure, when it controls the production process in a certain way, it can realize the control that is difficult to achieve by manually switching electrical appliances (such as knife switches). function to meet more and more complex control requirements put forward in the production process. E.g
Product features of Subminiature Power Relay Model 932 1，20A contact switching capacity 2，The dielectric withstand voltage between coil and contact is 5kV 3，High sensitivity, power consumption 0.2W 4，UL insulation class: Class F 5，Applicable to household appliances, intelligent furniture, leakage protectors, instruments, communication devices, intelligent remote control systems
From here, we can clearly see that because the electromagnetic power relay adopts such a working principle and structure, when it controls the production process in a certain way, it can realize the control that is difficult to achieve by manually switching electrical appliances (such as knife switches). function to meet more and more complex control requirements put forward in the production process. E.g
Subminiature Power Relay Model 932 parameter information： Overall dimensions：18.3*10.2*15.6mm Relay weight:6g Contact form：1A Contact load: 20A 277VAC Coil voltage：3V DC,5V DC,6V DC,9V DC,12V DC,18V DC,24V DC,48V DC Coil resistance (Ω± 10%):0.2W,0.45W between contact coilsvoltage: 5000VAC Between disconnecting contacts voltage: 1000VAC
The phenomenon has created various relays with different structures and functions, and has made great contributions in the struggle of mankind to conquer nature. A long time ago, people made electromagnetic relays based on the phenomenon of electromagnetic induction to meet the needs of communication
in industrial and mining enterprises, there are low-voltage automatic circuit breakers used to control various circuits and electrical equipment. Air circuit breakers (also known as automatic switches), contactors, relays, etc.
The application of the relay, I believe everyone knows, in the circuit as long as it is powered and powered off, it can work.However, its application details, I don't know if everyone has paid attention. Below are my views.
Power relay is a device that can produce jump in one or more electrical output circuits when the input (or excitation) meets some specified conditions, and can be used in neutral point direct grounding system as the directional element of zero sequence current protection. It is widely used. Today we will talk about the application and working principle of Hongze small power relay.