Q72-WTCA three-phase power meter

The Q72-WTCA three-phase power meter is embedded and installed on ships or other mobile power equipment devices to measure the active power under balanced or unbalanced phase loads in a three-phase AC network.

The Q72-WTCA three-phase power meter is embedded and installed on ships or other mobile power equipment devices to measure the active power under balanced or unbalanced phase loads in a three-phase AC network.

Main technical specifications of Q72-WTCA three-phase power meter

Accuracy: Level 1.5

Measurement range: see attached table for details. Shell protection: according to IP22

Front panel size: 96 X 96mm, 72 X 72mm two options

Instrument deflection angle: Q72-WTC □ port, Q96-WTCdll]: 90 °

Q72-WTCDDZ, Q96-WTCDDZ: 240 ° power conversion: included in Q96, attached outside Q72 CV100-W instrument scale: white background with black scale, red line can be drawn if setting value is required.

Can I customize a negative power of 15? 20% scale rated frequency: 50Hz, 60Hz Instrument installation: fixed with 4 diagonal brackets Environmental temperature range: 25~55 ° C Weight: 0.30kg

CV100 - W:0.95kg(Q72 )

structural principle

The Q72-WTCA three-phase power meter adopts a magneto electric measurement mechanism and has a converter that converts power into voltage signals.

The conversion part is to convert the power to be tested into DC 0-3, and the converter is either internal or external. The principle diagram is shown on the right:

Since the voltage and current * of each phase circuit in a three-phase balanced circuit are the same, the power of the three-phase circuit can be obtained by measuring the power of one phase. Three phase three wire imbalance or using the two element method, and three-phase four wire imbalance using the three element method.

The current to be measured is passed through a transformer and a voltage/current converter. The voltage is then sampled by a circuit and multiplied by a multiplier, filtered and rectified by a filtering network, and then amplified and converted into DC 0-3 for driving the measurement mechanism. The power supply of the voltage stabilization circuit is taken from the voltage to be tested.

Model representation

Q9672-WTCE Q72-WTCEZ Three phase Balanced Power Meter

Q9672- WTCA Qra WTCAZ Three phase Three wire Unbalanced Power Meter

Q9672-WTCAN Q72-WTCANZ three-phase four wire unbalanced power meter