KPM75 Power quality analyzer

KPM75 is a new generation high-end power quality analyzer that follow international power quality standards and monitor all power quality parameters such as flicker, short interruptions in recorded voltage, and harmonic up to 63 measurements, etc.
Overview Function Specifications Wiring Diagram Download

KPM75 is a new generation high-end power quality analyzer that follow international power quality standards and monitor all power quality parameters such as flicker, short interruptions in recorded voltage, and harmonic up to 63 measurements with power data Statistics, IO signal control alarm, communication and other functions. Large graphic LCD display, pluggable function module design, widely used in key power applications, it is the ideal choice to monitor the distribution operation efficiency.

Application occasion

  • Measure, monitor and control power distribution system parameters
  • Collect energy consumption data that cost center analysis needs
  • Power quality analysis(Harmonic, voltage interruption, flicker and so on)
  • Signal control alarm 

Function features

  • Measure the real effective value of all-parameter
  • 63th harmonic measurement and analysis
  • Measure voltage imbalance rate, voltage deviation, frequency deviation and other power quality parameters
  • Measurement and recording voltage fluctuations and flicker, inter-harmonics and other power quality parameters
  • Short-term interruption of voltage, surge, sudden drop and other power quality events recorded
  • Demand statistics function, record the current value and maximum value
  • 0.2S four quadrant power statistics
  • Can set 4 kinds rates 8 time period multi-rate power statistics
  • RS485 communication interface, Modbus-RTU protocol, Optional Profibus-DP
  • 1 road passive optical coupler collector active pulse output
  • Can be extended 4-way passive switch value input
  • Instrument working hours, load time statistics
  • 160 * 160 graphic LCD screen, rich in content, intuitive and clear
  • Pluggable design, appearence design patents, replacement and maintenance easy

Working power source Operating Voltage AC 85-265V/DC 80-300V
Rated power consumption < 3VA
Input voltage Rated voltage 57.7/100V,220/380V,380/660V
Overvoltage capability 1.2 times rated voltage allowed, continuous work;
2 times the rated voltage allowed 1 second
Rated power consumption <0.5VA(per phase)
Measurement range 5A:0-6A;  1A:0-1.2A
Input current Rated current Default 5A, input range 1-6A;
optional 1A, input range 1-1.2A
Overload capacity 1.2 times rated current allowed, continuous work;
20 times the rated current allowed 1 second
Rated power consumption <0.4VA(per phase)
Accuracy range 5A:>5mA;  
Measurement accuracy Voltage ±0.2%(0.01V)
Current ±0.2%(0.01A)
Active power ±0.2%(0.01W)
Reactive power ±2.0%(0.01var)
Power factor ±1.0%(0.001)
Frequency ±0.002Hz
Active energy ±0.2%(0.1kwh)
Reactive energy ±2.0%(0.1kvarh)
Measurement display Basic parameter Voltage / current, active power, reactive power, apparent power, frequency, active energy
Power quality 2-63 harmonic distortion rate; total harmonic distortion rate; crest factor; current K factor; voltage / current imbalance rate, flicker, voltage surge, dips, short interruptions
Demand statistics Power demand maximum, minimum and current value
Multi-rate 8 time periods, 4 kinds of rates
historical data Record monthly average power factor and power data for the last three months
communication port RS485,Photoelectric isolation interface
Communication protocol Modbus-RTU, 1200-38400BPS
Switch value input 4-way passive main line contact DI input, internal supply DC24V power supply
Relay output 4-Way DO output, contact capacity 250VAC / 5A, 30VDC / 5A
Pulse output 1-way passive optocoupler collector active pulse output
Product features Display 160 * 160 large dot-matrix LCD graphics display
Extensions function Pluggable expansion design
Degree of protection IP54
Dimensions 96*96*88
Working environment Operating temperature -25℃ ~ +70℃
Storage temperature -30℃ ~ +75℃
Relative humidity 5% ~ 95% No condensation
Altitude Not more than 4000m
Safety Withstand voltage AC2kV/min~1mA input-output-source 
Insulation >50MΩ 
Electromagnetic Compatibility Surge(impact) immunity IEC61000-4-5,Level4
Electrical fast burst immunity IEC61000-4-4,Level4
Electrostatic discharge immunity IEC61000-4-3,Level4
Power frequency magnetic immunity IEC61000-4-8,Level4

1. The wiring diagram is suitable for high voltage three-phase three-wire system, low voltage three-phase four-wire system, regard to other system wiring. 2. Please refer to KPM75 instruction manual.
3. Analog output AO- and switch input common COM share one terminal.
4. Terminal that without function description is invalid.
5. The function of dotted lines is optional.
6. The final interpretation belongs to Compere.