Overview
RISH PQM is a compact, multi-function panel mount power quality monitor, which measures, calculates and displays major electrical parameters of three phase power system like Voltage, Current, Active / Fundamental Reactive / Apparent Power and Energy, Individual Harmonics, Sags and Swells.
Application
Energy billing
Electrical load monitoring
Sub-metering
Product Features
Measures & Monitors more than 80 parameters:
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All basic electrical parameters.
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Power quality parameters (Overcurrent ,Sag & Swell).
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Individual harmonics contains of per phase voltage and current.
True RMS measurement:
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The instrument measures distorted waveform upto 56th Harmonic for 50Hz and upto 46th Harmonic for 60Hz.
Power Quality Measurement :
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Sags & Swells detection
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Measurable up to 56th (50Hz) harmonic on each phase.Maximum any 6 harmonics can be monitored simultaneously for each phase.
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Measurement of RMS value of fundamental and per phase voltage and current harmonics.
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(%) THD of per phase voltage and current
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Distortion factor of individual harmonics.
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Time stamping of sags & swells.
Graphical Analysis:
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Per phase individual harmonic bar graph representation.
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Real time vector representation of all 3 Phases for complete system analysis.
Energy class 0.5S as per IEC 62053 :
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Independent Import and Export energy counter.
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Active energy (kWh), Fundamental Reactive energy (kVArh) & Apparent energy (kVAh) measurement.
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Accuracy as per IEC 62053-22, IEC62053-23
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Impulse for energy verification
Onsite programmable for user desired application:
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Onsite programmable input voltage (100VLL to 500 VLL), input current (1A or 5A) and system configuration (3 phase 4Wire (unbalanced) or 3phase 3Wire (unbalanced) network).
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Onsite programmable CT ratio & PT ratio.
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Wide auxiliary power supply range: 60-300VAC/DC.
Time Of DAY (TOD / TOU):
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Easy programmable tariff schedule
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4 seasons
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4 tariffs
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6 time zones per day
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4 types of days
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5 tariff energy registers
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Automatic daily profile storage for a one day, one month & one year
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Cost per kWh calculation
Real Time Clock (RTC):
Phase sequence detection:
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Incorrect phase sequence indication or phase failure indication on any of the input voltages.
Direct remote access:
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Remote access of measured parameters.
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User Assignable Registers for MODBUS.
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Programmable baud rates up to 38.4kbps.
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Remote configuration of the Instrument via MODBUS.
Limit (Alarm) & Pulse Relay Output:
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Potential free, very fast acting relay contact
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Configurable as pulse output which can be used to drive an external counter for energy measurement.
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Configurable as limit (alarm) switch.
Compliance to International Safety standards:
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Compliance to International Safety standard IEC 61010-1- 2010
EMC Compatibility:
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Compliance to International standard IEC 61326
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