ULTRA RAPID POWER QUALITY ANALYZER
ULTRA RAPID
POWER QUALITY ANALYZER
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Ultra rapid (cycle by cycle) advanced electrical network analysis
Complete network harmonics analysis, up to 63rd harmonic
High visibility, 5” graphic LCD screen with backlight
Displays neutral voltage and current
Comprehensive data logging
Feeder transformer analysis
Compliance monitoring of international power quality standards
Flexible design, allows system customization
Up to 2048KB of flash memory
User-friendly PC software (PowerIQ)
A variety of isolated digital and analog inputs and outputs
Multiple communication protocols
Menu driven operation
Easy installation, configuration and use
Features
Metered Values
• True RMS measurements
• Ultra rapid, real-time, cycle by cycle measurements, at 128
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samples per cycle. Real-time values averaged over 8 through
256 cycles for easy reading
Choice of models ranging from essential measurements only
(Volts, currents, frequency and powers) to over 2000 electrical
parameters
Min/Max values
Four quadrant readings (power, power factor)
Displays neutral voltage and current
Time-of-Use (TOU)
Graphic Display & User Interface
Extra large graphic LCD screen
High visibility (FSTN technology)
Bright Backlight
Characters are displayed in varying sizes to enhance
visibility from long distances
• The user interface offers an easy to use, installation and
configuration menu driven operation
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Communication
• Optional RS-485 or RS-232 communication port
• Supported protocols: ElCom protocol - Elspec’s unique
ultra rapid communication protocol and ModBus RTU
• Time-of-Use information is automatically stored for each pre-
defined period
• PowerIQ software calculates electricity costs according to varying
tariffs (based on time, season etc.)
Power Quality
• Waveform display and capturing, at 128 samples per cycle
• Harmonics analysis, up to 63rd harmonic (individual, THD, K
and crest factors)
• Sag/Swell recording (magnitude, duration and trigger events)
Compliance Monitoring
• Compliance monitoring of international power quality standards
• These monitoring operate on all product series (e.g. the harmonics
level is tested even if the meter doesn’t include harmonics
display)
• Baud rate of up to 115200 BPS
• Fully automated baud rate setup
Structure
• Allows easy adaptation of the unit to current and future
requirements
• Easy upgrading of the firmware (internal software)
Network Types
• Supports any network connection configuration (3 and 4
Wire, Wye and Delta, single-phase etc.)
• Feeder transformer (or local generator) current and power
analysis (see Applications section)
Software
• User-friendly PC software (PowerIQ)
• Includes on-line help for easy use
Logging & Recording
• Up to 2048KB of flash memory
• High speed data recording for short duration critical events
• Logging of over 2000 parameters at scheduled intervals or by
set-points
• Min/Max recording of key parameters
• Logging of setup changes, set-point and power quality events
• Precise timestamp synchronized to external GPS (optional)
Input, Output & Relays
• On board relay can be controlled automatically by internal
set-points
• Optional 4 digital inputs and 2 outputs for multiple purposes,
such as synchronization to utility meter or to generate energy
pulsing (Wh, VArh and VAh)
Direct Phase Measurements:
Mains Power and Power Factor Computations:
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Indexes:
i - phase index
n - harmonic index
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Harmonic values:
n,i - value of n'th harmonic at phase i of the phase voltage
In,i - value of n'th harmonic at phase i of the mains currents
RMS Values:
Vi - RMS value at phase i of the phase voltage
Ii - RMS value at phase i of the mains current
THD Computations:
2
n,i
n,n&1
-T
THDi =
T1,i
Harmonic values:
THDi - THD of parameter T at phase i
Tn,i - value of parameter T at the n'th
harmonic of phase i.
Harmonic values:
n,i - phase difference between phase voltage and mains current
at the n'th harmonic and phase i
RMS Values:
Pi - total active power (for all harmonics) at phase i
Qi - total reactive power (for all harmonics) at phase i
-P - total active power (for all phases)
-Q - total reactive power (for all phases)
Applications
Network Types
The Power Analyzer supports any network connection configuration, such as 3 and 4 Wire, Wye and Delta, and single-phase.
The connection is either direct (up to 347/600 VAC) or using a Potential Transformer (PT). Minimum burden on the Current
Transformers (CTs) is achieved by connecting the CTs without a physical contact. Delta networks use 2 or 3 CT’s and Wye
networks use 3 or 4 CT’s.
Feeder Transformer Analysis
1900A
When the system is configured as a Delta network, it displays the L-to-L
Max. Rating: 1155A
current and power, in addition to the line currents and total power. The
Actual: 1267A
system measures the line current from the CTs and calculates the current
1900A
and power inside the feeder transformer (or generator). In completely
balanced networks, the internal currents are 1/33 of the line currents.
In many cases, the network is not balanced and the internal currents
1900A
are different from these expected.
Load
This can be explained with the following hypothetical example:
A transformer designed for a maximum current per phase of 2000A,
therefore each internal line is designed for a maximum of 1155A (2000/33). The network includes only one phase to phase
load of 1900A between phases L1 and L2 and nothing on L3. The transformer appears incorrectly to have a 95% load (1900/2000).
The currents are divided into 67% on L1-L2 line and 33% on L1-L3 and L3-L2 lines, resulting in 1267A on the L1-L2 line, and
the transformer is overloaded by 10%.
Elspec’s unique L-to-L current and power algorithm displays this information, enabling maximum network monitoring.
Connection Diagrams
typical connection in a Wye network
typical connection in a Delta network
Display Screens
Main Menu
Large Digit Screen
Detailed
analysis of
Time-Of-Use
(TOU) can be
done using
the PowerIQ
software
Permits simultaneous display of 9
parameters: 3 measured values plus
3 minimum and 3 maximum.
Parameters can be mixed, such as
average voltage, current and power
factor. This unique feature allows
analysis of the foremost parameters
at a glance, without touching the unit.
The PU % buttons displays the values
as a percentage from their nominal
rating.
Waveform Screen
128 samples/cycle
Measurement Level
1
2
3
4
L3
L2
L1
L3-L1
L2-L3
L1-L2
L3
L2
L1
L3
L2
L1
L3-L1
L2-L3
L1-L2
L3
L2
L1
VOLTAGE
CURRENT
This large graphic display allows
easy monitoring of transients of
130/156µS (at 60/50Hz). The display
includes detailed information for
each wave: the type and phase,
THD, RMS, peak & bottom values
plus value at cursor position.
VOLTAGE
CURRENT
Harmonics Screen
63 harmonics
The graphic display enables
inspection of the harmonics
pollution at a glance. The display
includes detailed information for
each harmonic: type, phase,
number of the harmonic, the value
in amperes/volts and in percent,
the angle and the frequency.
Main Menu (Cont.)
Info Screens
Additional event-specific
information is displayed.
Detailed event
information is accessed
using PowerIQ software
Step-by-step installation assistant
Notes:
* These detailed display screens are for WYE network configuration
* Other configurations have similar screens
The screens include automatic default and user-friendly help screen
PowerIQ Software
General
This easy-to-use software displays the
system’s status, as well as the
measurement results on numerous screens
running under Windows (95, 98, me, NT
and 2000). PowerIQ integrates all Elspec
systems, allowing power quality analysis,
cost allocation, circuit optimization,
demand & power factor monitoring.
PowerIQ includes real-time
measurements, as well as comprehensive
data logging and power quality analysis
features. All screens allow customization,
printing and exporting of data. The
network version enables complete intranet and Internet operation, as well as
modem access.
POWER ANALYZER
POWER ANALYZER
POWER ANALYZER
Power Analyzer
Transformer #1
Power Analyzer
Transformer #2
Power Analyzer
Transformer #3
POWER ANALYZER
Power Analyzer
Extruder #2
RS-485 (up to 32 units)
RS-485 (1500m)
RS-485/RS-232
converter
Electricity Room
RS-485/RS-232
converter
Site Local Network (TCP/IP)
Chief Electrioian
Maintenance Manager
Control Room
Modem
Production Manager
Modem
POWER ANALYZER
Remote Control
Real-Time Measurements
Provides clearly visible real time values,
with minimums and maximums.
POWER ANALYZER
Harmonics Analysis
Scope
Displays the harmonics spectrum both as a graph and as a table,
in addition to harmonics analysis parameters (THD, K-Factor
and Crest-Factor). Compliance monitoring of international power
quality standards, such as IEEE-519, allows easy network analysis.
Displays waves and their phase shifting, and
enables detection of existing or potential power
quality problems.
Data Logging
Enables comprehensive network analysis by logging over 2000 parameters
per record. It can be set to record data either on pre-defined intervals (from
1 cycle to 99 hours) or according to network events. The recording volume
and time is limited only by the size of the computer’s hard disk.
Data Monitoring
Displays the recorded data in either on-line or off-line mode. The on-line
mode displays the data while simultaneously recording it for maximum
power analysis control.
Report Generator
Creates user-defined or preset reports (such as load profile and
power quality) reports. The reports are easily defined using a
word processor (such as Microsoft Word).
Time-of-Use (TOU)
Displays the Time-of-Use information stored in the analyzer, in
addition to calculation of energy costs, according to virtually
any utility tariff structure.
Events
The event screen is used for retrieving, monitoring and analyzing
the events information from the analyzer.
Specifications
LCD Display Size
LCD Display Resolution
LCD Display Type
Overall Dimensions
Panel Cutout
Weight
Ambient Temperature
Storage Temperature
Direct Voltage Measurement
Current Measurement
Relay Alarm
EMC Compatibility
Safety Standards
Protection Class
Analog Channels
Communication (optional)
Power Supply
Power Consumption
Harmonics Analysis
Ordering Information
: 94x76 mm
: Graphic 160x128 pixels
: FSTN, LED backlight
: 144x144x120 mm [HxWxD]
: 138x138 mm
: 1.4 kg
: -20˚C - +55˚C
: -25˚C - +65˚C
: 347/600 VAC Max.
: ../5A (1A)
: Max. 2A 250VAC
: EN61000-4-2/3/4/5, ENV50204, ENV50141
: EN61010-1, EN50439-1, UL508
: IP40
:7
4 x Voltage Channels
3 x Current Channels
: ElCom (Elspec’s protocol), ModBus RTU
: 110 or 230v, 50/60 Hz
: 15 VA
: 1 through 63rd
PQA-312-2
Product Series (1-4)
Standard Version (1)
Communication:
0 - None
1 - Single Elcom Port
2 - Single Elcom/Modbus Port
3 - Dual Elcom/Modbus Port
Power Supply:
1 - 110v 50/60 Hz
2 - 220v 50/60 Hz
Additional Cards:
Blank - None
M - Memory Expansion
D - Digital I/O (4 in, 2 out)
A - Analog Output (0-20mA, 4-20mA, +/- 1mA)
Additional options available. Please contact Elspec
for details.
Model Information
Options
Full Instrumentation
Wiring Diagnostics
ANSI C12.1 Accuracy
Frequency
Current, per Phase
Current, Neutral
Current, L-to-L (Transformer)
Volts, L-to-L
Volts, L-to-N
Volts, Neutral
Real Power (kW)
Reactive Power (kVAr)
Apparent Power (kVA)
Power Factor
Time-of-Use (TOU):
- Real Energy (kWh)
- Reactive Energy (kVArh)
- Energy Accumulation Modes: in, out, net, total
THD (Current, Volts, L- to-L and L- to-N)
K-Factor (Current, Volts, L- to-L and L- to-N)
Harmonics (Current, Volts, L-to-L and L- to-N)
Waveforms (Current, Volts, L- to-L and L- to-N)
Min/Max Readings
Event Logging (coming soon)
Data Logging (coming soon)
Data/Time Stamping
Flash Memory (Kilo Bytes)
Maximum Flash Memory (Kilo Bytes)
RS-422/485 Communication Port - Elcom Protocol
RS-422/485 Communication Port - ModBus/RTU
Onboard Alarm
1
Product Series
2
3
4
256
256
Displayed
Phases
Accur. (%)
(FS)±1dgt
L1,L2, L3, Avg
N
L12, L23, L31, Avg
L12, L23, L31, Avg
L1, L2, L3, Avg
N
L1, L2, L3, Sum
L1, L2, L3, Sum
L1, L2, L3, Sum
L1, L2, L3, Sum
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.4
0.4
0.4
0.4
Sum
Sum
0.5
0.5
L1, L2, L3, Avg, N
L1, L2, L3, Avg, N
L1, L2, L3, N
L1, L2, L3, N
0.2
0.2
0.2
0.2
512 512 1024
1024 1024 2048
- included
- optional
All trademarks are the property
of their respective owners
Specifications are subject to
change without notification.
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