Informal delay time relay is used in the secondary loop protection and automatic control circuits of the electrical system for the secondary circuit of the power system. As a delay device, the control components are delayed;0.02S-999h; This relay is a static relay of integrated circuit-type integrated circuit with high accuracy, small power consumption, accurate action time, calm and convenient, wide range, completely replace electromagnetic time relay, large volume switch cabinet usedTime relay.
Power -powered delay relay wiring diagram
In the introduction of power -powered delay relay wiring diagrams, generally speaking, in the wiring diagram of power -power delay relay, the input foot of the power supply is 2 or 7 feet, 1 and 8 are public feet for contacts, 1, 3, and 4 are a set of contacts.5, 6, and 8 are another group of contacts, and the normal closed points of the contact are 4 and 5.In other words, when the circuit is not powered on, 5, 8, 1 and 4 are connected. After the power of the power supply, the contact will be connected to 1 and 3, 6 and 8 after a while.In this way, the two are transformed differently when connecting and not connected to the power.Introduction to Power Electrical Relaxing Reex 1, Introduction.Power -powered delay relay, as the name implies, is used to extend time. It has continued time through the continuation of time. The power -to -time delay relay has many advantages: the use of small power consumption, the extension time is very accurate, and the extension time is very accurate.The delay range is wide and so on.2. Technical requirements.1) The accuracy of delay.The average error of relay delayed fixed values ??is not greater than 0.1%+3ms of the fixed value.Delay consistency.2) The return time of relay.After cutting off the power, the exit point of the relay will return to its original position, so the return time is less than 25ms.3) Working voltage: The voltage of the power -to -time delay relay should be less than 70%of the rated voltage, so that the relay can be reliable to work normally.4) The power consumption of power -to -time delay relay at work is below 2.5W.5) The return voltage of relays after power is not less than 10%of the rated voltage. In this way, the contact of the relay can be reliably returned to its original position.
Passing the principle of working in power delay relay
1. Time relay for power -power delay: It is not actionable to have a long -term delayed contact. After the delay time, the delay often closed the contacts, and the delay often opens the contact closure.2. Time relay of power -to -power delay: It is not actionable to have a long -term delayed contact. After the delay time, the delay often closed the contacts, and the delay often opens the contact closure.
Power -powered delay relay symbol
1. Time relay is a very important component in the electrical control system.It is generally divided into two types: power -powered delay and power -off delay.When drawing and identifying the electrical schematic diagram, the graphic symbol of the time relay is easy to make people mix.Especially the delayed contacts of the time relay are generally unsure when used.The text symbol of the time relay is KT I. The coil graphics symbol of the time relay. When you see that the black spots are the electrical, the electrical appliance is broken.2. Power -powered delay relay symbolic rectangle has a fork power disconnect delay delay relay symbol cubic rectangle.The time relay of the power -to -power delay: The timing starts the time, the contact state switch between the set time, and the contact state of the contacts immediately recovered immediately after the power failure.

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