Electromagnetic Relay 1500v rms

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Electromagnetic Relay 1500v rms

Q: Our company has changed the door of a sign of the door, is the kind of advertising that night can be the kind of light, but the light control need to plug the plug to control, I heard that you can install a set of time independent switch device, I do not understand this Areas, would like to ask you, if you buy, then what kind of delay switch or delay relay? Where can you buy it?: Delay switch is generally refers to the air-type delay switch device, it is no coil, is a passive, by the card at the top of the AC contactor on the suction rod linkage work, commonly used models: LA2 series; delay relay Is the power delay, the control time is longer: DH48 series, preset time: 0.01 seconds to 99.99 hours Delayed relays are mainly used for DC or AC operation in a variety of protection and automatic control lines as auxiliary relays to increase the number of contacts and contact capacity. You can adjust the delay time as needed.

Q: Street lights off the light time with light control time switch which is good: Light control advantage is based on the strength of the light on the road to determine the light is not bright, sometimes even during the day because of rainy days, the road light is low,

Q: Duty cycle and switch cycle, the switch tube opening time, the relationship between the three: Ton = 1 / f * d So your understanding is right The turn-on time of the switch in one cycle = D * cycle

Q: Even want to use two mechanical relays after interlocking control of two-way thyristor and then control the motor is reversing, do not know the delay time enough?: Have to use single-chip or ARM, the computer through the serial port to send instructions to the microcontroller, single-chip output control voltage, making the relay opening and closing, and then use the relay control you need mechanical switch. So, you want to buy the equipment is: development board

Q: Zhengtai KG316T when the control switch locked, how to unlock the reset time: Zhengtai Electric KG316T microcomputer control switch unlock method: When the lower left shows а, that lock, press the first row of the left: cancel / restore button, 4, the lower left of the display а disappear, that unlock success. After debugging, wait a moment, and automatically locked.

Q: The internal thermostat is broken, for an external, but the refrigerator freezer does not seem to work, the ice cream inside the inside, do not know how to connect the summer thermostat switch machine how to tune?: Refrigerator using external temperature control is generally adjusted to start 20 minutes, stop 40 minutes for the best, but also according to the actual situation of refrigeration may be, if the cooling is not ideal, it is recommended to increase the start of the appropriate time to not exceed the time As a reference value

Q: Time controller how to use the button switch with the realization of the button switch and time controller can stop, thank you teacher: Between the controller control point and the hand control point and inoculation control two sets of control plus conversion off, hand control

Q: Time timer switch time timer switch: The earliest use of the timing tool is hourglass or water leakage, but after the birth of the watch mature, people began to try to use this new timing tool to improve the timer, to achieve the purpose of accurate control of time. In 1876, the British surgeon Sauer acquired a patent for a timing device to control the switch of the gas street lights. It uses the mechanical clock to drive the switch to control the gas valve. At first the last week of the winding, 1918 years after the use of electricity clock, you do not have a winding.

Q: Home line air switch closed after a period of time on the trip What is the reason?: 3 in the air switch below a part of the line where the environment is too wet line insulation damage caused by leakage earth fault. 4 in the air switch below the line there are short-circuit points, such as a section of the line insulation damage to the aging of the insulation performance caused by a short line between the zero line and the line of fire, or an electrical failure If this is the case you can disconnect all the electrical Power and then send the power if you can send all the electrical appliances can be connected to a power supply to see if there will be a trip if the air switch trip to find the reason.