Industrial three wire active power transmitter

Industrial three wire active power transmitterFeatures:

When the output resistance of the current source is large enough, the voltage induced in the wire loop through magnetic field coupling will not have a significant impact because the current caused by the interference source is extremely small. Generally, twisted pair cables can be used to resist and reduce interference;

2. It is not easily affected by parasitic thermocouples and resistance drop and temperature drift along the wire, and transmission lines can use very cheap and thinner twisted pair wires;

3. Capacitive interference can cause errors in receiver resistance. For a 4-20mA two-wire loop, the receiver resistance is usually 250 Ω (sampling Uout=1-5V), which is small enough to produce significant errors;

4. It is easy to install surge and lightning protection devices at the two-wire output port, which is beneficial for safe lightning protection and explosion prevention.

1. industrial sector：

• Monitoring of electric motors and feeding systems in industries such as metallurgy, petrochemicals, power, and textiles.

• Real time monitoring of active power on the production line, optimizing load distribution, and reducing energy consumption costs.

2. energy management：

• Power monitoring for smart grids, photovoltaic power stations, and wind power generation systems.

• Adapt to photovoltaic arrays below DC1000V and achieve short-circuit protection with fuses.

3. public facilities：

• Energy analysis and optimization for high-rise buildings, municipal power distribution, and data centers.

• Integrate into the BA system to achieve intelligent voltage regulation and power control of air conditioning, lighting, and other equipment.

4. safety protection：

• Integrate with the fire protection system to cut off faulty circuits (such as overload and short circuit) in real time.

• Combined with power factor transmitters, comprehensively evaluate the efficiency of the power grid and reduce harmonic pollution.