Q:Samsung mobile phone automatic switch machine set time where?

Slide the screen up and select [About phone]. Select [Auto Power On / Off].

Q:What is the duration of the 10KV switchgear arc?

What is the duration of the arc? The switchgear in the entire switchgear in the open when the arc can produce; switchgear IAC test also have arc. Do not know what you are asking is the circuit breaker in the breaking test when the arc time, or in the IAC test arc duration! Burst time: the standard requirements of the circuit breaker switch when the arc time is 3 ~ 15ms, the actual test of 3 ~ 9ms up, the arc time and the first phase of the opening time. IAC arc duration: According to GB3906 requirements, you can choose 0.5s, 1s, 2s

Q:Not the starter problem lamp did not bad some time after a few hours before the bright Is not the voltage problem ah? The Please know how to help or help you have to learn every day

Fluorescent pin and lamp holder bad contact, change the direction of the lamp or power outage adjustment socket socket. And then not the words of the ballast is the problem, there may be interrupted when the internal line. I suggest you change the electronic ballast is better.

Q:Our company a store, in the signature lights and electronic screen were connected to a time control switch, but the two time control switch output are not connected to the load. Asked the installation of the master said, because the lines are buried in the wall, and can not find the load of the zero line, so the direct control of the zero line into the line connected to the total zero line. But then the sign switch lights connected to the time switch switch air switch is always from time to time trip, I would like to ask this time with the control switch installed properly related? How to change the line? Or is it because the air switch is connected to the time control switch line too fine? See below. (Blue) wire is visually 1.5 lines, other lines are measured at least 2.5, and now the orange light that sign lights light line into the line connected to the total number of air switch Is inexplicable tripping. The

From the point of view you describe, the main load is not found on the zero line, using the main line from the power line to take the line directly to the time controller on the outlet, this connection is possible, most of the time controller zero Lines are connected together, but there are not connected together, it is best to get the zero line to the time controller on the line. Then the time switch connected to the air switch is always from time to time trip, you are in the two time controller zero line outlet are not wired, there is no load, how will trip it, you check the line is not too Fine did not catch up with fever.

Q:In order to get the desired size of the output voltage, how to adjust the conduction and cut-off time of the MOS tube to get? The The Thanks

2, and then remove the current from the MOS tube drain current information through the other port to return to 3843., to ensure that the load under different load conditions, and can be constant power output.

Q:Such as the intake valve: the top dead center before -3 degrees open, to 37 degrees, then it should be closed from 37 or 38 degrees, why is it after the bottom point of 71 degrees?

Early car engine into the exhaust valve opening and closing time are at the top deadline. Later, it was found that the valve in the top dead center 0 ° open, due to the inertia of the late role, the actual amount of gas into the cylinder is insufficient. In order to increase the intake volume, the valve will be better to open the effect in advance.

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 question is really more professional, the circuit breaker on the nameplate on the closing time, generally refers to the closing instructions to the last phase of the main arc chamber contact just a period of time. As the three-phase closing moment there is a time difference, so there is an important indicator, is the synchronization of the switch. As for how you want to keep the lead angle to meet the requirements, this also need to further check the information.

Q:What is the streetlight control switch?

Is to control the lights in the set time to turn on the lights and turn off the device. Street lights control (time control) switch municipal street lighting industry status: 1) there are high energy consumption, high electricity, street lighting facilities and equipment, large amount of lamps, loss of large; ? 2) street lamp equipment scattered, less management personnel, management difficulties; 3) street lamp power supply line length, loss of line, energy consumption; 4) manual inspection workload, low efficiency, high cost; ? 5) ordinary simple time control program;

Q:Mobile phone every time switch, the time has changed, how will not save, you save the time?

if you still can not remember the time, then you must be fast for the battery speed, in 1-2 seconds must win, it will save the original time

Q:How can I switch the power supply at the set time?

insert the timer into the power outlet, pay attention to the current should be in the extinguished state, otherwise, please control the mode first adjusted to "off", then "mode" to "automatic" (Note: Put into the "automatic open"; now time in the set period to put "automatic off")