Three phase four wire electricity meter direct connection--D3001-VY function
Direct access to the circuit: no current transformer is required.
Four-line connection: the wiring method is simple and intuitive.
Total power consumption measurement: the dial or display directly displays the total power consumption.
Compact and economical structure: small size, low cost, easy installation and maintenance.
| Type | Three phase four wire electricity meter direct connection D3001-VY |
| Voltage | |
| Nominal voltage Un | 3x277/480VAC |
| Voltage range | 0.8-1.15Un |
| Frequency | |
| Nominal frequency fn | 60 Hz |
| Frequency range | 0.98-1.02fn |
| Current | |
| Reference current Irer=Ib=10Ir | 5A |
| Maximum current Imax | 65A |
| Minimum current Imin | 0.25 A |
| Starting current Ist | 0.004I |
| Accuracy | |
| Active | Class B in compliance with DIN EN 50470-1/3 Class 1.0 in compliance with IEC62053-21 |
| Reactive | Class 2.0 in compliance with IEC62053-23 |
| Measuring Energy | |
| Two energy directions | +A/-A,+R/-R, |
| Reverse locking | +A,+R, |
| Meter constant | |
| LED-Output | 1000 imp/kWh,1000 imp/kvarh |
| Display | |
| LCD | 7 digit |
| Life cycle | >12 years |
| RS485-Data Interface | |
| Connector | Two screws type |
| Parameter | 9600/19200/38400 bps,8E1/8N1/8O1(parameters adjustable) |
| Communication protocol | Modbus RTU |
| Power Consumption | |
| Voltage circuit | <2W/10VA at Un |
| Current circuit | <4VA at Ib |
| Temperature Range &Humidity | |
| Typical Operation | -30℃ to+70℃ |
| Storage | -40℃ to+85℃ |
Three phase four wire electricity meter direct connection D3001-VY manufacturer
Easy installation:
No additional auxiliary equipment such as current transformers is required, which reduces the installation steps and related accessories, reduces the installation complexity, and enables the meter to be connected to the circuit more quickly, saving installation time and labor costs.
Intuitive measurement
The actual current, voltage and other parameters in the circuit can be directly read. The measurement results can reflect the actual power consumption of the circuit in real time, which is convenient for users to intuitively understand the power consumption status. There is no need for complex multiplier conversion, which reduces the errors and operational troubles caused by conversion.
FAQ
What is a three-phase four-wire meter direct connection?
A three-phase four-wire meter direct connection means that the meter is directly connected to a three-phase four-wire circuit, and the current flows directly through the current coil inside the meter.
What are the key considerations when installing a three-phase four-wire meter direct connection?
Confirm that the maximum current of the circuit is less than the rated maximum current of the meter, ensure that the current is within the meter range, and the live wire must flow in from the "incoming end".
What should be paid attention to in the daily maintenance of three-phase four-wire?
Regular inspections to see if there is an overload alarm. Check the contacts to see if there are any signs of oxidation and heating on the wires.Accuracy calibration, when the error of the direct-connected meter exceeds 0.5%, it needs to be debugged or replaced.
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