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UP 6720 Plus 

Model: UP 6720 Plus
Name: Multifunctional Power Quality Meter
Description:

  • Current input terminal with automatic shorting mechanism
  • Over 90 power and energy parameters
  • Modbus(R) RTU / DNP3.0 protocol
  • 4-AC current inputs, 5A or 1A (specified upon ordering)
  • 4-AC voltage inputs, maximum 300V

 
Overview

The UP 6720 plus Power Meter is microprocessor-based instrument intended for power and energy measurement. Additional functionality options provide control functions such as synchro check. The UP 6720 plus is an Intelligent Electronic Device (IED) and stores measured values and setting parameters in internal registers for communication. Featuring high accuracy, fully modularized & plug-in design, and compact size, UP 6720 plus is very suitable for Electric Utility Substation Automation applications.
 

Features
◎ Current input terminal with automatic shorting mechanism
◎ Over 90 power and energy parameters
◎ Modbus  RTU / DNP3.0 protocol
◎ 4-AC current inputs, 5A or 1A (specified when ordering)
◎ 4-AC voltage inputs, maximum 300V
◎ True RMS conversion
◎ 32 sample points per cycle
◎ Instant maximum and minimum logger
◎ For factory and building automation
◎ Maximum demand control applicable
◎ Compact physical configuration
◎ Waveform capture
◎ Error message display
◎ Build in RTC (real time clock)
◎ Field programmable PT / CT ratio
◎ Accuracy up to 0.15%
◎ Low input burden 0.5VA (5A / 120V)
◎ 2 communication Port, RS-485 + RS-232
◎ Wide power supply range 80~260V AC / DC
◎ Memory for all setup and energy data
◎ Comprehensive self test diagnostic
◎ “User Map” speed up communication (indirect accessing data)
◎ Synchrocheck
◎ Fault current detection (option)
◎ 2KV RMS input / output / power isolation
◎ VFD display clear and long-life
◎ Fully modularized & plug-in type
◎ Easy in field maintenance 


Model & Ordering



Specifications
Programmable measurements / Accuracy / Display readouts
        
  Input
  • 4 - AC Currents ( Aa, Ab, Ac, A0)
  • 4 - AC Voltage (Pa, Pb, Pc, Pn for 3-phase input & P1, P2 for separate 1-phase input)
  • Range :
    • Voltage : 10 ~ 300 V
    • Current :
      • Switchable for CT secondary rating
      • Maximum 6A for 5A rating
      • Maximum 1.2A for 1A rating
    • Frequency 40 ~ 70Hz
    Burden
  • Voltage < 0.15VA at 300V (or > 1 M)
  • Current < 0.3VA of rating    
*Overload Withstand: 2 CT continuous, 25 CT 2 sec, 50 CT 1 sec
    Display
  • VFD / 0.28" / green color, 1 rows of 9 alphanumeric
    Programmability
  • Communication Baud Rate
    • 1.2k / 2.4k / 4.8k / 9.6k / 19.2k bps, Device addresses 1 ~ 254
  • Measured Power System
    • 3P4W / 3P3W / 1P3W / 1P2W
    • 50 / 60 Hz main frequency
    • PT ratio 1.0 ~ 5000.0
    • CT ratio 1.0 ~ 5000.0
    Fault Current Detection (Mode 0) ..... optional
  • One Fault-Based-Curve
  • 16 set-point groups (Ip-pu, Mp, Ig-pu, Mg)
    Fault Current Detection (Mode 1) ..... optional
  • User definable
  • 4-point Phase time over-current curve
  • 4-point Ground time over-current curve
    Waveform Capture
  • Data Channel : 4 currents, 4 voltages
  • Sample Rate : 32 points per cycle, length 2 cycle
    Maximum / Minimum Logger
  • 20 parameters with time-stamp: includes VP1, VP2, VP3, VPE, VPS, VL1, VL2, VL3, VLE, VLS, A1, A2, A3, A0, AE, W, Var, VA, PF, F
    Communication Port
  • RS232 (front panel): Modbus RTU protocol only
  • RS485 (rear panel): Modbus RTU or DNP3.0 protocol
    Real Time Clock (RTC)
  • Maximum deviation 2 sec in 24 hours
  • Time for Year / Month / Day / Hour / Minute / Second
    Dielectric Strength
  • IEC 255-5
  • 2KV AC rms 1 minute between input / output / power
  • 2.5KV AC rms 1 minute between case / input
  • 2KV AC rms 1 minute between case / power
    Impulse and Surge
  • ANSI / IEEE C37.90.1-1989 (3KV) SWC
  • IEC 61000-4-12 CLASS III SWC
  • IEC 61000-4-4 CLASS IV SWC
  • IEC 61000-4-5 CLASS IV Impulse
    Stability
  • Temperature range (-10 to +50 oC), max. 100 ppm/oC
    Operating Condition
  • Temperature range -25 to 60 oC
  • RH 10 to 95% non-condensing
    Storage Condition
  • Temperature range -40 to 80 oC
  • RH 10 to 95% non-condensing
    Event logger
  • 200 events with time-stamp
  • status change of switch input
  • Failure in self-test
  • Programming access
  • Power ON / OFF
    Power Supply
  • LO : DC 20 ~ 60V
  • HI : AC 80 ~ 260V @ 40 ~ 70 Hz, DC 80 ~ 330 V
  • Dissipation maximum 12 VA for AC and 5W for DC
    Dimension
  • 144 * 72 * 210 mm (W * H * D)
  • CUT OUT : 137 * 68mm