109 times 9/4/2019
Three-phase four-wire is a collective term for three phase wires and a neutral wire. The phase wire provides power to the motor. Any combination of phase wire and neutral wire provides 220V power to provide power to the control circuit.
117 times 9/4/2019
The power supply for our residents is basically based on the TN-S grounding system. Before this TN-S grounding system transmitted electricity to our home, basically the live, neutral and ground wires were strictly separated.
96 times 9/4/2019
A square millimeter of copper wire has different amperages under different currents. The maximum value is theoretically 15A. In normal use, we can calculate about 9A-13A.
198 times 9/4/2019
Photoelectric direct reading remote water meter is a common electronic remote water meter, and some users report that communication failure may occur during use.
124 times 9/4/2019
As the name suggests, lightning protection is to prevent direct or side strikes from lightning, and grounding is to introduce lightning current into the ground. Electrical grounding is divided into protective grounding and working grounding. Protective grounding is to prevent the device from leaking electricity from causing an electrical shock to the case, and introduce leakage current into the ground.
701 times 2017/2/21
Multi-user electricity meters are more common in society now, but they will pay attention to many aspects, so what issues should be considered when using multi-user electricity meters?
632 times 2017/2/15
The remote pre-paid energy meter and the power management system can realize functions such as remote meter reading, remote pre-payment, anti-theft, load management and so on.
624 times 2017/2/11 619 times 2017/2/7
Multi-user electricity meters are more common in society today, but they will pay attention to many aspects, so what issues should be considered when using multi-user electricity meters?
732 times 2017/2/3 680 times 2017/1/30
Multi-user electricity meter manufacturers have an overload protection function. When the user's load exceeds the maximum allowable load, the meter automatically powers off the user.
524 times 2017/1/26 460 times 2017/1/21 382 times 2017/1/18
The combination of smart meters such as multi-user meters, pre-paid meters, and smart grids is indeed an effective way to save energy.
392 times 2017/1/15