Q:Does the timer switch call the time to work?

Different timing switches work in different ways. Some do not necessarily support no electricity work.

Q:It is best to have pictures, the effect is to achieve this, power, light does not shine, press the button switch, 15 minutes after the light, then press the switch, the lights and then off, do not press the lights immortal. Can not achieve such a procedure. The relay is energized.

Now the electronic time relay does not perform the normally open contacts, can not complete the LZ requirements, if there is a reset contact can be (button to reset the contact, that is, the relay delay 15 minutes after the lights, when the button when the relay reset Light off, wait until 15 minutes and then bright, that is, a light off for 15 minutes). However, if you use a balloon-type time relay can meet the requirements of LZ, because the relay has two delay contact and two normally open contacts and two normally closed contacts.

Q:Photoelectric switch control time relay control AC contactor delay closed

The way they control is such that the normally open contacts of the photoelectric switch relay are connected to the time relay coil to control the time relay. Time relay delay disconnect contact to connect the transmission mechanism of the AC contactor coil, control AC contactor.

Q:220KV circuit breaker on the nameplate to write the rated closing time of 50 ~ 80ms, power station frequency frequency 50HZ, if a cycle is 0.02s that is 20ms in the same period during the closing period how to maintain the leading angle to meet the requirements, and to introduce some of the more professional book

This is more difficult to solve the current problem is that the same period or also known as the synchronization, which is the generator port breaker equipment Why use foreign products because of it, Siemens, ABB and other giants in this side of the study earlier, hope this link The paper can give you some help

Q:The living room 1.5 air conditioning to open a period of time on the trip (before about an hour or so jump, air conditioning master today to check the air conditioning, air conditioning no problem, help me after cleaning, opened four hours or tripped. Really depressed: Do not know how to fix it? (2 rooms in an air conditioning together to start the night will not jump, are separate routes)

Check if the power cord is in good contact. Or the air switch has a problem.

Q:How does the timer switch set the time?

2, the timing of the opening time and timing of the set 2-1 Press the "Timer" key for 3 seconds to enter the timer setting mode; 2-2 The screen display -: - op (op is the timer on time) At this time, the hour bit flashes, press ? or ? key to adjust the timer to turn on the hour, and then press the "Timer" key to adjust the turn on time; (At this time automatically set the time to complete); 2-3, after the opening time is set, and then press the "Timer" button, the screen shows -: - du (du for the delay off the length), then the minute bit flashing, (Special Note: the current screen only minutes Bits and seconds) Adjust the number of minutes of the required delay time by ? or ? key, and then press the "Timer" key to adjust the number of seconds (the first set of time and time settings is completed) The The maximum length of each time can be set to 90 minutes, the shortest can be accurate to 5 seconds, for more than 90 minutes, you can take a number of time periods overlap time (that is, the second paragraph of the timing set in the first time Off time before) to achieve 24 hours a day of any time set; 2-4, short press "OFF" key, the screen shows the next period of time, according to the above 2-2,2-3 process can set the next paragraph of the time (short press ON can return to the upper timing time setting). Press and hold the Timer key to save or stop the panel operation after 30 seconds.

Q:I am a factory electrician, I would like to ask, how to control the total power switch? Mainly at work time the whole plant of the total power open, when the whole plant power supply automatically shut down. (To prevent accidental leakage accident occurred) The total power of the plant is about 200-300kw I used it on some lines Time control switch + contactor control circuit in the working hours of electricity, power off time. But I do not know whether the time control switch can control 300kw such a large contactor, And whether my current approach is the best way, is there any other way?

First: total electricity generally does not allow frequent switching. The second time you can determine the set time and work time match? How are you sure that all the devices are off? If not shut down, there have been such as: computer control program equipment, suddenly lost power, it may make the system crash. Can you recover in time? Someone in overtime, there are pneumatic components equipment, workers are operating, suddenly power, pneumatic equipment wounding how to do?

Q:Switching power supply to Canada NRcan energy efficiency time about how long

To ensure that the charger and battery voltage uniforms, your battery is 25.6v of the job, 65AH is the battery capacity

Q:Aluminum windows have a long time difficult to switch how to do

Is flat or open the sliding window can be a little bit of oil on the hinge there is support if the push and pull you can point the soap to the track do not point the oil on the bearing is not easy to damage the track

Q:What is the file in the computer that records the time of the switch?

C: /windows/SchedLgU.Txt Here record the boot and shutdown conditions