GST7666-CT5 Three-phase CT-connection Smart Energy Meter
GST7666-CT5 is a CT(current transformer)-connection three-phase smart energy meter designed to meet the energy metering requirements of large power customers, suitable for applications of industrial u
Details
GST7666-CT5 is a CT(current transformer)-connection three-phase smart energy meter designed to meet the energy metering requirements of large power customers, suitable for applications of industrial users & distribution transformers. It complies with IEC standard of Class 0.5S high accuracy metering, and its communication compliant with DLMS/COSEM protocol.
Modular Design
GST7666-CT5 adopts modular design, with exchangeable communication modules supporting PLC, RF or GPRS communication optionally based on requirements.
Main Features
·CT-connection
·DLMS/COSEM compliant
·AMI-system integrated
·Plug & play PLC/RF/GPRS module
·Remote monitoring & remote controlling
·Programmable value of power limit, overcurrent & overvoltage
·Tamper detection & recording of events such as cover opening,reverse connection & power off
·Maximum demand measurement & load profiling
·Replaceable battery
·Small-size modern design
ELECTRICAL PARAMETERS
| VOLTAGE/FREQUENCY/CURRENT | |
| Nominal voltage Un | 3x230/240V |
| Limited voltage | 80% ~ 115%Un |
| Frequency | 50±2% |
| Basic current(Ib) | 1A |
| Maximum current(Imax) | 10A |
| Starting current(Ist) | 30mA |
| Active energy constant | 6400imp/kWh |
| Reactive energy constant | 6400imp/kvarh |
| ACCURACY | |
| Active energy as IEC62053-21 | Class 0.5S |
| Reactive energy as IEC62053-23 | Class 1.0 |
| 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 |
