1、 Function of three-phase current and voltage meter:

A three-phase current and voltage meter can directly measure the three-phase voltage parameters in the power grid, with a measurement range of rated voltage: AC380/220V AC100/57.7V. (The range can be expanded through PT), current measurement can be used in conjunction with transformers to measure current parameters. The three-phase current and voltage meter uses digital LED digital tubes to display parameters. The three-phase current and voltage meter has the advantages of high accuracy, strong isolation, stable electromagnetic compatibility, anti vibration, and high cost-effectiveness. The three-phase current and voltage meter can set PT and CT changes and can be used in energy management systems, substation automation, distribution network automation, community power monitoring, industrial automation, intelligent buildings, intelligent distribution panels, and switchgear. It can directly replace the original pointer type three-phase current and voltage meter.

1. Three phase current and voltage meter:Equipped with high-performance processing chips and independent measurement chips, it has high measurement accuracy and fast operating speed.
2The display magnification, communication address, baud rate, etc. can be set through the buttons on the panel, making it very flexible and convenient to use.
3. Three phase current and voltage meter:Measure phase current and voltage parameters, CT can be set arbitrarily.
4. Adopting LED digital display, digital zero and digital calibration, high precision, and extremely high cost-effectiveness.
5. Three phase current and voltage meter:Input voltage AC220V, AC400V, AC100V (range can be expanded through PT)
6. 0-20mA or 4-20mA analog output. Alarm output, monitoring the upper and lower limits of the measured parameters.

Shanghai Yadu three-phase current and voltage meter

IIThree phase current and voltage meterTECHNICAL INDEX

Accuracy of three-phase current and voltage meter: display accuracy of 0.5 level
Display: Using digital LED digital tube to display parameters

Three phase current and voltage meter voltage input:
Rated values: AC220V, AC400V/AC100V (range can be expanded through PT)
Overload: continuous 1.2 times instantaneous: voltage 2 times (10 seconds)
Power consumption:<1VA (per phase)
Impedance:>300k Ω

Three phase current and voltage meter current input:
Rated values: AC1A, AC5A (range can be expanded through CT, please specify when ordering)
Overload: continuous 1.2 times instantaneous: current 10 times (5 seconds)
Power consumption:<0.4VA (per phase)
Impedance:<20M Ω

Three phase current and voltage meter power supply:
Working power supply: AC220V, AC/DC80-265V, AC380V, DC24V, DC48V power supply. Please specify when ordering
Power consumption: ≤ 5VA

Three phase current and voltage meter output module:
Pulse output: 2-channel power pulse output, optocoupler relay, constant: 5000imp/Kwh (Kvarh)
Switching input: 2-channel or 4-channel switching input
Switching output: 2-channel or 4-channel switching output
Analog output: 1-4 channels
Communication interface: RS485 interface MODBUS-RTU protocol, baud rates of 1200, 2400, 4800, 9600 optional

Three phase current and voltage meter isolation withstand voltage: input and power>2kV, input and output>1kV, power box output>2kV
Insulation resistance: ≥ 100M Ω
Working conditions: Environmental temperature: -10~55 ℃, relative humidity ≤ 93%, no corrosive gas field, altitude ≤ 2500m

IIIThree phase current and voltage meterSelection table:

　IIIDigital three-phase voltmeterWiring example diagram