three phase four wire energy meter Feature
Accurate measurement: With multi-level accuracy, it can accurately measure the active and reactive energy of three-phase circuits to meet the measurement needs of different scenarios.
Widely applicable: It can be directly connected to low-power circuits, or used in high-power scenarios with transformers, covering various power consumption environments such as industry, commerce, and large buildings.
Comprehensive functions: It supports multi-parameter monitoring such as voltage, current, and power. Some models have RS485 communication, undervoltage alarm and other functions, which are convenient for intelligent management.
Stable and durable: It uses high-quality components, has a long design life, strong anti-interference ability, and adapts to complex power grid environments.
| Type | A17-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 energy meter manufacturer
Excellent technology and quality: The company has been deeply involved in the industry for more than 20 years. Its products comply with international standards such as MID and IEC. It has many authoritative certifications such as German PTB, Dutch KEMA, CE, UL, etc., and has passed CMMI Level 3 certification. It has leading technological innovation and R&D capabilities, which can ensure high product quality.
Guaranteed service and cooperation: It provides five-star after-sales service, has obtained GB/T27922 - 2011 standard certification, has an AAA credit rating, has a wide global layout, has branches in many places, can efficiently respond to cooperation needs, and has strong after-sales and cooperation stability.
FAQ
What are the common accuracy levels for three-phase four-wire energy meters, and what are the differences between them?
Common accuracy levels are 1, 0.5S, and 0.2S. The higher the accuracy level, the more accurate the measurement.
What types of reference voltages are there for three-phase four-wire energy meters, and what are they suitable for?
Common reference voltages are 3×57.7/100V and 3×220V/380V. 3×57.7/100V is generally suitable for some low-voltage three-phase systems with special voltage requirements. 3×220V/380V is widely used in common three-phase four-wire low-voltage power supply systems.
What are the basic current parameter specifications?
There are many options for basic current parameter specifications, the most common ones are 1.5 (6) A, 5 (20) A, 10 (40) A, 15 (60) A, 20 (80) A, 30 (100) A, etc.
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