What happens when the time controlled switch and AC contactor control the street lamp cannot be powe

Time-controlled switches and AC contactors are electrical devices commonly used to control street lights. When the time control switch and AC contactor fail to send power to the street light and cause tripping, there are several possible reasons:

1.Power supply failure: First, you need to check whether the power supply line is normal. It may be that the fuse in the power supply line blows or the circuit breaker trips, preventing power from being transmitted to the time-controlled switch and AC contactor. In this case, it is necessary to check and repair the fault of the power supply line.

2.Faulty time-control switch: The time-control switch may be faulty, resulting in failure to work properly. It may be that the circuit inside the time switch is damaged or that there is an error in the control program. At this time, it is necessary to check the circuit and program of the time-control switch, and repair or replace it.

3.AC contactor failure: AC contactor is a key equipment used to control power transmission, if the AC contactor fails, it may cause power to not be transmitted to the street light.

It may be that the contacts inside the contactor are worn or sticky, causing the power to be turned on properly. At this point, the contacts of the AC contactor need to be checked and cleaned or replaced.

4.Faulty street lights: If all of the above devices are working properly, but the street lights still can't receive power, it may be that the street lights themselves are faulty.

It could be a burned-out street light bulb or a poor wiring connection. At this time, it is necessary to check the bulb and wiring connection of the street lamp, and repair or replace it.

To sum up, the reasons why the time-controlled switch and AC contactor cannot send power to the street light and cause the trip may be a power supply failure, a time-controlled switch failure, an AC contactor failure, or a street lamp failure. It is necessary to troubleshoot and repair the faults of related equipment or lines one by one to ensure that the street lights can work properly.

There are short circuits and leakage in the lines, including lamps.

May I? OK.

The time-controlled switch can be used without connecting to the AC contactor.

First of all, it is necessary to understand why the time-controlled switch should be connected to the AC contactor, rather than blindly adding.

Bluetooth time-controlled switchIt is recommended that the direct load Senbang should not exceed 1320W, and when the electrical power of the connected load is less than 1320W, it can be directly controlled by the time-controlled switch.

AC contactors play the role of turning power switches on or off in a circuit. That is to say, when the electrical power of the load connected to the time control switch is greater than 1320W, it is necessary to add an AC contactor to use, which is the first to avoid the time control switch being burned out.

After the AC contactor is installed, the AC contactor is controlled by the time-controlled switch, and the AC contactor is used to control the electrical appliances.

If the load exceeds the load range of the time-controlled switch, you must use the AC contactor, and if the control is a three-phase equipment, you must use the AC contactor, and its practical relay nuclear shouting cover is also possible, but you must pay attention to the contact capacity of the relay.

The time-controlled switch does not have to be used and the contactor can be used.

If the current of the controlled equipment exceeds the load of the time-controlled switch, a contactor should be added when the nuclear current (generally below 3A).

This mainly depends on the load capacity, do not exceed the load capacity, it is possible to do without AC contactors.

If the rated current of the time-controlled switch (there is a standard pure signal above) is greater than or equal to the current of the load, there is no need to use a contact wheel, and if it is less than that, a contactor is needed to avoid overload.

With a single microprocessor as the core and electronic circuits, a power switch control device can be used to control the opening and closing of household appliances in multiple periods of time and in a daily or weekly cycle. It is suitable for the automatic control of various industrial appliances and household appliances, which is safe and convenient and saves electricity and money.

The time is set from 1 minute to 168 hours, 1-16 groups can be set per day, and there are multiple control functions. Set it once and it is valid for a long time. The output current can be 10-25A, which can control the work of electrical appliances from 4000W to higher power normally.

It can also be combined with relays, contactors, etc. to control other high-power power equipment. Some high-end products also have light, and latitude and longitude control functions.

Extended Materials. When there is a glitch:

1. If the switch is not turned on on a certain day, or the time to close after it is turned on, the pants may be because the week of the timing setting is not correct, please check or readjust according to the method introduced in the timing setting.

2. If you confirm that the opening and closing time are adjusted correctly, but the switch still does not operate normally, or it is turned off when it should not be turned off, it may be because the extra sets of switch time have not been eliminated.

Please refer to the method of elimination introduced in the timing setting (note: the switch time display --: can indicate elimination, do not think that 00:00 means elimination).

3. If the above two items are all correct, and the switch is still not operating normally, it may be that the automatic manual key is artificially operated, check the sign of on, automatic and off, adjust it to the state of the current time, and then adjust it back to the automatic position.

The time-controlled switch hits the contactor on the manual top and does not jump, and it trips when it hits the automatic top, what is the reason?

Hello dear! After the switch trips and eliminates the fault of the switch itself, the following problems are generally common: 1

Switch connector sparks, 2Of course, it may also be a short internal eggplant pipe path of a certain electrical appliance (you can also try to pull out an electrical appliance that is not working properly), Tong Dan 3Overload (that is, the new installation of high-power electrical appliances, resulting in overload of the switch, need to change the switch with a higher rated current).

Why is the AC contactor connected to the time control switch will not jump the indicator light is normal, how to wiring hello dear, 1, the upper end) is connected to the power supply (lower end) to the load; A1 A2 is connected to the coil power supply that controls the closed or disconnected contactor; After A1 and A2 are connected to the rated control power supply of the line vibrator high circle, the contactor is closed, and the end of the contactor is connected to respectively, and the load is energized and works accordingly. The coil wiring method of the time relay is the same as above, but the wiring on the control contact is connected to the control line of different control elements according to the different control objectives, and the target control element is controlled ((closed or disconnected) through different time settings, so that the control element is closed or disconnected through the first hole to achieve the controller defeat target and work according to the control purpose. Hope it helps.

Summary. Kiss hello <>

The reasons why the time-controlled switch works and the AC contactor does not operate and the light does not light up are as follows; 1.Power supply problem: The normal operation of the AC contactor requires a power supply, if the power supply fails or is artificially cut off, the contactor cannot work normally.

2.Signal transmission problems: The signal sent by the time-controlled switch needs to be transmitted to the AC contactor through an intermediate relay or other control circuit, and if there is a problem with any of these parts, the contactor will not work properly.

For example, loose or disconnected relay contacts or poor contact can be the cause. 3.Incoming or wiring problems:

If the incoming wire or wiring is loose or the contact is poor, it will also cause the AC contactor to not work properly. 4.AC contactor internal fault:

If the internal components or contacts of the AC contactor itself are damaged or burned, it will also cause the contactor to fail to work properly.

What is the reason why the time-controlled switch works and the AC contactor does not work, and the light does not light up.

Kiss hello <>

The reasons why the time-controlled switch works and the AC contactor does not operate and the light does not light up are as follows; 1.Power supply problem: The normal operation of the AC contactor requires a power supply, if the power supply fails or is artificially cut off, the contactor cannot work normally.

2.Xinshan closed number transmission problem: the signal sent by the time control switch needs to be transmitted to the AC contactor through the intermediate relay or other control circuits, if any part of it has a problem, it will make the contact contact not work normally.

For example, loose or disconnected relay contacts or poor contact may be the cause. 3.Incoming or wiring problems:

If the incoming wire or wiring is loose or the contact is poor, it will also cause the AC contactor to not work properly. 4.AC contactor internal fault:

If the internal components or contacts of the AC contactor itself are damaged or burned, it will also cause the contactor to fail to work properly.

Time control refers to the control and arrangement of an activity or process according to the requirements of a certain point in time or time period. Time control is an important management tool that can help people plan and schedule their time to improve efficiency and effectiveness. In modern society, time is very precious and limited, so time management is very important for both individuals and organizations.

Time control management should adopt different methods and technologies according to different situations and needs. I wish you a happy life! I hope my yard town brigade will be of help to you.

Summary. Hello, this situation may be caused by the failure of the time switch. It may be that the contacts of the time-controlled switch are faulty or damaged, or other components of the time-controlled switch circuit are faulty, causing the AC contactor to fail to operate and the light to not light up.

It is recommended to check whether the wiring of the time control switch is stable and whether there is any poor contact.

Hello, this situation may be caused by the failure of the time switch. It may be that the contacts of the time-controlled switch are faulty or damaged, or the time-controlled switch circuit is delayed and other components are faulty, resulting in the AC contactor not operating and the light not lit. It is recommended to check whether the wiring of the vibrato-clock switch is stable and whether there is any poor contact.

If the problem cannot be solved, it is best to have a professional electrician for service and repair by burying the repair. At the same time, in order to avoid safety problems, it is recommended to keep attention when using electrical devices and check possible faults in time. Rock judgment.

Hello, thanks for the consultation, if the time control switch works and the AC contactor does not work, the light does not turn on, it may be due to the following reasons: The time control switch is wired incorrectly: The time control switch has a variety of different wiring methods, if the wiring is wrong, it may affect the normal operation of the AC contactor.

Check the wiring of the time-controlled switch and make the correct connection according to the instructions. AC contactor failure: If the AC contactor itself fails, it will also cause it to not work properly.

It is necessary to replace the chain transport or repair the AB AC contactor. Control circuit failure: The time-controlled switch controls the AC contactor through the control circuit, and if there is a control circuit failure, it will also cause the AC contactor to fail to work normally.

Check the control circuit, find the point of failure and fix it. Protection device on the time-controlled switch or AC contactor is activated: If the protection device on the time-controlled switch or AC contactor is activated, it will also cause the switch to not work properly.

It is necessary to check the cause of the failure of the protective device and restore the protective device. When the control switch is working and the AC contactor does not operate and the light is not on, it is necessary to check the above problems in turn, find out the fault point and repair or replace the equipment. If necessary, it is recommended to consult a professional electrical engineer to inspect and repair the type beam.