GST7666-G Three-phase Keypad Smart Energy Meter
GST7666 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 opt
Details
GST7666 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.
Main Features
| ·Multi-tariff ·STS-compliant prepayment ·DLMS/COSEM compliant ·Built-in load control ·Infrared port/RS 485 ·Tamper detection & recording ·Active/reactive energy measurement ·LCD display capable of reading without power |
·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 ·Max demand measurement & load profiling (customizable) |
Split-type Structure for Anti-tampering Protection
The meter consists of two parts, the MCU (Metering & Control Unit) and CIU (Customer Interface Unit), which could be linked via communication modes of M-bus, PLC or RF based on requirements.
The CIU is installed inside the customer’s home for inputting prepayment token and searching for information, while the MCU is normally installed in a meter enclosure away from the customer’s home.
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 | 16kV |
| 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 |
