Chapter 11 - Universal Intelligent Ac Power Meter Unit; General; Acup Card - Veesta World V-RTU2000 Series Technical Information

V-RTU2000 Series
Veesta - Remote Terminal Unit
Technical Specification Manual

Chapter 11 - Universal Intelligent AC Power Meter Unit

11.1

General

11.2

ACUP Card

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Chapter 11 - Universal Intelligent AC Power Meter Unit
In principle design, the VR-2760 Power Meter from V-RTU2000
Series of products is of intelligent Power Meter which is with high-
precision intelligent digital power transducer, having capacity to
measure the input signals of 3 currents (CT) and 3 voltages (PT), can
directly measure up more over 100 kinds of power parameters. This
unit is equipped with 2 sets of CPU comply with its Firmware,
enhancing analog sampling and digital computation function. It
connects to CPU Card through RS-485 communication interface
which is on the first group of backplane. The hardware is designed in
standard DIN rack mounting by plug-in type for meeting the DIN
specification, under in one-switching V.S linking with external CT
terminal. Other terminals include 3 PT, working power and 2
communication interfaces (COM1 and COM2) for transmitting to the
backplane terminal for actual application through under 96-Pin DIN
Connector. In design, the analog circuit and digital circuit are
arranged into different circuit board.
The VR-2760 Digital Power Meter Unit is microprocessor-based
instrument intended for power and energy measurement. Additional
functionality option to provide control function as synchro check, The
VR-2760 is Universal Intelligent Electronic Device (IED) and stores
these measured values and setting parameters in internal registers
for communication. With the
modularized & plug-in design, and compact size, VR-2760 is very
suitable for Electric Utility Substation Automation application.
The ACUP Card 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
 Waveform capture
 200 event logs for all measured quantities
features, high accuracy, fully
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