GST7666-WJ4 Three-phase Smart Energy Meter
GST7666-WJ4 is a three-phase multi-function energy meter with embedded communication modules，used to accurately measure energy for commercial,industrial & residential customers. The meter supports
Details
GST7666-WJ4 is a three-phase multi-function energy meter with embedded communication modules，used to accurately measure energy for commercial,industrial & residential customers.
The meter supports optional communication modules of PLC/RF/GPRS/3G/4G, with communication protocol complying with DLMS/COSEM protocol. It could be optionally used in STS-compliant prepayment mode or postpayment mode , withor without communication module based on requirements.
Modular Design
GST7666-WJ4 adopts modular design, with exchangeable communication modules supporting PLC, RF or GPRS communication optionally based on requirements.
Main Features
·Multi-tariff
·DLMS/COSEM compliant
·Built-in load control
·Infrared port/RS485
·Tamper detection & recording
·LCD display capable of reading without power
·Active/reactive energy measurement
·Disconnecting on overload & no-credit condition
·Prepayment/postpayment mode switchable
·Plug & play PLC/RF/GPRS/3G/4G module
·Display scroll button or STS keypad (optional)
·Programmable warning of power limit & low credit
·Dual power source switchable between power grid & solar system
·Maximum demand measurement & load profiling (customizable)
ELECTRICAL PARAMETERS
| VOLTAGE/FREQUENCY/CURRENT | |
| Nominal voltage Un | 3x230/240V |
| Limited voltage | 60% ~ 120%Un |
| Frequency | 50/60Hz±5% |
| Basic current(Ib) | 10A |
| Maximum current(Imax) | 100A |
| Starting current(Ist) | 30mA |
| Active energy constant | 1000imp/kWh |
| ACCURACY | |
| Active energy as IEC62053-21 | Class 1.0 |
| Reactive energy as IEC62053-23 | Class 2.0 |
| POWERCONSUMPTION | |
| Voltage circuit | <2W <8VA |
| Current circuit | <1VA |
| TEMPERATURERANGE | |
| Operation range | -25℃ ~ +70℃ |
| Storage range | -40℃ ~ +85℃ |
INSULATION
| Insulation level | 4kV rms 1min |
| Impulse withstand voltage | 8kV 1.2/50 μs |
ELECTRO MAGNETIC COMPATIBILITY
| ELECTROSTATIC DISCHARGES | |
| Contact discharge | 8kV |
| Air discharge | 15kV |
| ELECTROMAGNETIC RF FIELDS | |
| 27MHz to 500MHz typical | 10V/m |
| 100kHz to 1GHz typical | 30V/m |
| Fast transient burst test | 4kV |
| MECHANICAL REQUIREMENTS | |
| Meter case protection class | IP54 |
| Insulation system classification | Protection class II |
| Maximum cable size | 10 mm |
