KPM73 Multifunction Power Meter
KPM73 Multifunction power meter with accurate measurement of power parameters, bi-directional four-quadrant energy measurement, time and load statistics, recording functions, using advanced ARM processor and digital signal processing technology. It integrates with comprehensive three-phase electrical parameters measurement and display, energy consumption, power quality analysis, multi rates statistics, switch input, digital output and communications networks in one, with finely manufacturing process, good electrical insulation and electromagnetic compatibility, large-screen LCD liquid crystal display, etc.
Features
- Digital panel power meter, standard 96*96mm panel installation
- Multifunction measurement, support three phase voltage, current, power, power factor, frequency, 4 quadrant energy, 2-51st harmonics, etc. measurement.
- Standard RS485 MODBUS RTU communication, optional 2nd loop Modbus RTU communication and Profibus-DP communication
- Optional 4 DI, 4 DO, 1 Temperature input, etc.
- High measuring voltage range, upto 380V/660V.
Functions of KPM73 Multifunction power meter
- Digital panel multifunction power meter
- Full electrical parameter measurement: UL-L, UL-N, I, F, PF, P, Q, S, four-quadrant energy, etc.
- High accuracy:
- U Class 0.2;I Class 0.2
- P Class 0.5S; Active energy Class 0.5S
- Power quality analysis:
- 2-51st harmonic analysis;I/U Total distortion rate;
- Crest coefficient;Valley coefficient;
- Current, Voltage imbalance rate;Setpoint limit alarm function.
Record function:
- Monthly average power factor and power data for the last three months
- Electrical parameters maximum and minimum data
- Meter working time, load time statics&100 events record.
- Communication: RS485/Modbus-RTU; Profibus-DP
- Power quality: H–2-51st harmonic analysis
- Optional function: P–Profibus-DP communication; DM—Demand analysis
KPM73 Multifunction Power MeterTechnical Tables
| Working power source | Operating Voltage | 85-305VAC / 70-430VDC |
|---|---|---|
| Rated power consumption | < 3VA | |
| Rated voltage | 57.7V / 100V / 220V / 380V / 660V (Customizable) | |
| Input voltage | Secondary Voltage | 5V |
| Overload capacity | 1.2 times rated voltage continuous operation; 2 times rated voltage for 1 second | |
| Power consumption | <0.5VA/phase (rated) | |
| Measurement range | Phase voltage (LN): 50-270VAC, Line voltage (LL): 90-470VAC | |
| Input current | Frequency range | 45~65Hz |
| Rated current | Default 5A, Input range 1-6A; Optional 1A, Input range 1-1.2A | |
| Secondary Current | 5A Configuration: 5mA; 1A Configuration: 0.8mA | |
| Overload capacity | 1.2 times rated current continuous operation; 20 times rated current for 1 second | |
| Power consumption | <0.75VA/phase (5A); <0.25VA/phase (1A) | |
| Input / Output | Switch value input | 4-way passive DI input, internal DC24V power supply |
| Relay output | 4-way DO output, Contact capacity 250VAC/5A, 30VDC/5A | |
| Analog output | 4-20mA output, overload 1.2 times | |
| Temperature input | Measure range 0℃~100℃ | |
| Power Quality Monitor | Harmonic measurement | Voltage/current 2~51st harmonic distortion rate and THD |
| Harmonic distortion rate | Phase voltage, line voltage | |
| Imbalance rate | Voltage, current | |
| Measurement Accuracy | Voltage | ±0.2% (0.01V) |
| Current | ±0.2% (0.01A) | |
| Active Power | ±0.5% (0.1W) | |
| Reactive Power | ±2.0% (0.1kvar) | |
| Active Energy | ±0.5% (0.1kWh) | |
| Reactive Energy | ±2.0% (0.1kvarh) | |
| Power Factor | ±0.5% (0.001) | |
| Frequency | ±0.02Hz (0.01Hz) | |
| Communication | Communication Interface | RS485, Profibus-V1, Photoelectric Isolation Interface |
| Communication Protocol | Modbus-RTU (1200~38400bps), Profibus-DP (9600~12Mbps) | |
| Electrical Insulation | Power Frequency Withstand Voltage | AC2kV / 1min |
| Insulation Resistance | >50MΩ | |
| Impact Voltage | 5kV Peak, 1.2/50μs | |
| Working Environment | Operating Temperature | -25℃ ~ +70℃ |
| Relative Humidity | 5%~95%, No Condensation | |
| Storage Temperature | -30℃ ~ +75℃ | |
| Altitude | ≤4000m | |
| EMC | Surge Immunity | IEC61000-4-5 Level 4 |
| Electrical Fast Burst Immunity | IEC61000-4-4 Level 4 | |
| Electrostatic Discharge Immunity | IEC61000-4-2 Level 4 | |
| Power Frequency Magnetic Field Immunity | IEC61000-4-8 Level 4 |
KPM73 Multifunction Power Meter Application
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