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Three Phase Smart Electricity Meter L3
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Three Phase Smart Electricity Meter L3
The multi-tariff three-phase electronic meter is designed for metering active and reactive energy in forward and reverse directions in three-phase four-wire AC circuits with a frequency of 50 Hz.
The meter is equipped with communication interfaces to operate in systems with remote sending of readings and ability to collect data simultaneously via different communication technologies.
Description
Features of three phase smart meter:
The three phase smart energy meter measures and displays:
- Mains frequency;
- Current in each phase;
- Voltage in each phase;
- Angle between current and voltage in each phase;
- Angle between phase voltages;
- Power factor in each phase.
The meter controls:
- Records for four energy profiles: active and reactive, forward and reverse directions with an interval of power integration of 1, 3, 5, 10, 15, 60 minutes;
- Consumed active power direction with an interval for power integration in 1, 3, 5, 10, 15, 60 minutes;
- Instantaneous power consumption;
- Limits for active energy consumption;
- Low current consumption;
- Voltage supply;
- Consumed currents;
- Network frequencies;
- Sequence of phases;
- Phase loss.
Characteristics
Technical specifications
Main
|
Accuracy class
|
active energy 0.5S / 1 reactive energy 0.5 / 1 |
|
Rated voltage
|
3х230/400V |
|
Working frequency range
|
47,5 to 52,5 Hz |
|
Base (maximum)
|
5 (10) А 5 (80) А 5 (100) А |
|
Meter constant
|
1600, 8000 imp./ (kWh), imp./ (kvarh) |
|
Working range of input signals: - current strength - voltage - active power factor - reactive power factor
|
0,05·Ib…Imax (0,8…1,15) Unom 0,8(capacity)…1,0…0,5(ind) 0,8(capacity)…1,0…0,5(ind) |
|
Starting current
|
20 mА |
|
Impulse outputs
|
2 |
|
Number of tariffs
|
8 by active energy 4 by reactive energy |
|
Storage depth
|
6144 readings |
|
Basic relative error when measuring rms values of phase voltages
|
1.0 from 184 to 264.5 V |
|
Basic relative error when measuring rms current values in the phase circuit
|
1,0 from 0.25 to 100 A |
|
Active power consumed in each voltage circuit
|
3 W |
|
Full power consumed in each voltage circuit
|
10 VA |
|
Optical and RS-485 exchange rate
|
9600 bit/s |
Installation
Installation
Meters of accuracy classes 0.5S and 0.5S / 0.5 are designed to be connected to the mains through measuring current transformers, meters of accuracy classes 1 and 1/1 can be produced in two versions: connected to the network directly or through measuring current transformers.
