DTZ545, DSZ535 three-phase intelligent energy meter is the Holley instrument to meet the national grid company's smart grid development needs of the development of high-precision intelligent instruments.

With positive and negative active energy and four-quadrant reactive power energy metering function.

Demand recording function: record the positive and negative active and positive and negative active rate of the maximum demand and its emergence date and time. You can store 12 billing cycle month maximum demand data.

With data storage and freezing function.

Event record: can record the most recent 10 times each phase loss of pressure, undervoltage, overvoltage, phase, drying, loss of flow, power-down, demand clear, overload, programming, school, open the cover, start button Cover, instrument clear, pull closing, purchase amount of events such as the time of occurrence and the state of the event when the energy meter.

Real-time parameter detection: real-time measurement and calculation of each phase voltage, current, power factor, active power, reactive power, apparent power, grid frequency, table temperature, current demand and current reactive power demand data.

With fault alarm and load curve recording function.

Communication: the RS485 communication, infrared communication.