Three Phase Four Wire Electric Power Meter

Specifications

Electric Meter

Introduction
The DDS794 TYPE SINGLE-phase electronic energy meter adopts specialized LSI, the device typifies few periphery component, simple structure, high reliability, lower power consumption, long life, etc. It is suitable for the single-phase requirements for sing-phase electronic watt-hour meter stipulated in GB/T 17215.321-2008 Class 1 and 2 Static AC active kwh energy meter standard.

Functions and features
Measure active electric energy, do not need calibrate for long-term operation;
Adopt dedication meter age chip ADE7755 for energy meter;
Adopt lasted electricity dedication integrated circuit, greatly improve dynamic working range of meter,
Making 5 multiple actual overload;

Have good mistake linearity in the range of 5% lb~max;
Few periphery component, simple structure, low power consumption;
Adopt high reliability and long life electronic component, so the meter assume feature of high reliability and long life.

Feature and Benefit
Plug and play communication module
Build-in connect/disconnect latching relay
Remote/local firmware update
DLMS/COSEM compliance
Anti-tamper feature

Specification
Measurement
Class1.0/class B for active energy
Class 2.0/class A for reactive energy
With IEC 62052-11, IEC 62053-21, IEC 62053-23 and EN50470-1/3

Measured Value
Import and export energy (active and reactive)
Instantaneous voltage/current/active power/reactive power/frequency
Power factor (or phase anger)
Maximum demand (optional)

Current
Current range: 5/100A, 10/120A
Short time over current: 30 times Imax for 0.5 cycles
Burden: <0.02VA/phase @Ib

Voltage & Power Supply
Nominal voltage: 120V, 220V or 230V
Burden: <10VA/phase@ Un, 2W
Rated frequency range: 50Hz or 60Hz

Disconnection/Connection
Maximum switching voltage: 400 V Ac
Maximum switching current: 120 A
Maximum switching power: 48 kW

Environment
Operating temperature: -25° C to +70° C
Storage temperature: -40° C to +85° C
Relative humidity: ≤ 95%, non-condensing
Ingress protection: IP54 (without suction)


Security

Three-level security password protection
Cover open detection
Data encryption(optional)

Communication
Optical port according to IEC 62056-21 Mode C/E
RS485 and/or RS232
PLC(G3/PRIME), Zigbee and/or GPRS module

Protocol
IEC62056 - DLMS/COSEM