Radian RD-30 Manuale utente
RD-30
Portable Three-phase
Electricity Standard
Radian Research reserves the right to change
any information provided within this document
without notice. 010813-1A1
944030.B
Operations Manual
Radian Research, Inc.
RD-30 Operations Manual
Contents
3
1.0 Product Introduction ................................................. 5
1.1 Enhanced Design Features ......................................................................................... 6
1.2 Laboratory Applications ............................................................................................. 8
1.3 Test Table Applications ............................................................................................... 8
1.4 Field Testing Applications .......................................................................................... 8
1.5 Harmonic Analysis ..................................................................................................... 8
1.6 Customer Load Testing ............................................................................................... 8
1.7 Automatic Calculations ............................................................................................... 9
1.8 Software Packages ...................................................................................................... 9
1.9 Safety Design ............................................................................................................ 10
2.0 Configurations Available............................................11
2.1 Generating RD-30 Model Numbers............................................................................11
3.0 Specifications ........................................................ 14
3.1 Accuracy.....................................................................................................................14
3.2 Input/Output .............................................................................................................. 14
3.3 Normal Operating Conditions .................................................................................. 15
3.4 Influences Affecting Accuracy ................................................................................... 16
3.5 Protection ................................................................................................................. 16
3.6 Physical Description ................................................................................................. 16
4.0 Operations Overview.................................................17
4.1 Measurement Principle..............................................................................................17
4.2 Internal Reference Set........................................................................................... .....17
4.3 Output Stage ............................................................................................................. 17
4.4 Voltage and Current Inputs* ...................................................................................... 18
4.5 Auxiliary Power Inputs ..............................................................................................18
4.6 Clamp-On CT Input .................................................................................................. 19
4.7 Pulse Inputs..............................................................................................................19
4.8 Pulse Outputs ........................................................................................................... 20
4.9 Analog Sense Input................................................................................................... 20
4.10 Serial Port Communications Terminal....................................................................... 21
4.11 Pickup Terminal ....................................................................................................... 21
4.12 Chasis Ground, Guard, Neutral ............................................................................... 21
4.13 Built-in-Computer .................................................................................................... 22
4.14 Keyboard .................................................................................................................. 23
4.15 Display ..................................................................................................................... 24
4.16 RD-30 Voltage & Current Taps ................................................................................. 24
RD-30 Operations Manual
Contents
4
5.0 Service & Routine Maintenance ................................ 25
5.1 Cleaning .................................................................................................................... 25
5.2 Repair ........................................................................................................................ 25
5.3 Recalibration .............................................................................................................. 25
5.4 Fuse Replacement....................................................................................................... 26
6.0 Warranty ............................................................27
7.0 Quality ..............................................................28
8.0 Operating System & Structure....................................... 29
8.1 RD-30 Start-up Screen............................................................................................... 29
8.2 RR-MobileSuite Start-up Screen ................................................................................. 30
8.3 Configure Device........................................................................................................ 33
8.4 Metrics........................................................................................................................ 37
8.5 Harmonics................................................................................................................... 39
8.6 Trend Chart.................................................................................................................. 40
8.7 Vectors........................................................................................................................ 41
8.8 Run Meter Test............................................................................................................ 42
8.9 Run Standard Test ...................................................................................................... 46
8.10 Softkbd........................................................................................................................ 50
9.0 RD-30 System Configuration and Setup............................52
10.0 RD-Status Indicator LED .............................................53
11.0 Application Information..............................................54
11.1 Meter Testing.............................................................................................................. 54
12.0 Viewing Harmonics.................................................62
13.0 Test Accessories....................................................63
Appendix: RD Current Connector Locking Mechanism..................66
* Appendix: RD Current Connector Locking Mechanism....................................................................................... 66
RD-30 Operations Manual
Product Intoduction
5
1.0 Product Introduction
The RD-30 Portable Three-phase Electricity Standard utilizes a lightweight, compact package
while providing a high level of accuracy through design innovations. The RD-30 has a typical
accuracy of 0.01% and a maximum worst case accuracy specication of 0.04%. This specication
includes variables of stability, temperature, power factor, traceability uncertainty, and test system
errors. In addition, this accuracy applies across the entire voltage and current operating range of
the product for an entire year.
The RD-30 utilizes Radian’s new Dytronic measurement technology consisting of a Radian
designed Integrating Analog to Digital Signal Converter. The RD-30’s Dytronic A/D Converter
is combined with Radian’s renowned electronically compensated voltage and current input
transformers and a hermetically sealed reference set to provide the highest degree of accuracy,
stability and versatility offered in a portable three-phase electricity standard.
The RD-30 provides four quadrant three-phase simultaneous measurements for active, reactive,
and apparent energy and power with forward and reverse energy ow also measured. The
potential input, current input and auxiliary power input are totally autoranging. This autoranging
feature was pioneered by Radian Research and makes it impossible to damage the unit by applying
a signal to the wrong tap. The potential input range is 30 to 630 volts, the current input range is
available as either 120 amps or 200 amps per phase. The auxiliary power ranges from 60 to 630
volts.
In the eld, the RD-30 can be used with a controlled current load, or it can be used with clamp-on
current transformers available from Radian Research to perform customer load tests. In this eld
application, the optional power analysis capability can analyze customer load through the 204th
harmonic order. In addition, for improved efciency, the RD-30 optionally can automatically
calculate and display the error of the meter under test.
RD-30 Operations Manual
Product Intoduction
6
The RD-30 also provides a serial communications port which allows direct connection to the RS-
232 serial port of a personal computer. RD-30s with the Built-in Computer option come with RR-
MobileSuite software.
The RD-30 is available in a variety of models offering measurement functions and options to suit
specic needs.
1.1 EnhancedDesignFeatures
Many design features have been added or improved through the engineering process of designing
the RD-30 Dytronic. The addition of A/D and DSP technology, increased PC support and an
enhanced version of Radian’s revolutionary voltage and current transformer input design make
the RD-30 the benchmark of portable standards, second only to the RD-31 portable threephase
reference standard. The RD-30 utilizes Radian Research designed Analog/Digital circuitry
coupled with Digital Signal Processing techniques. These advancements provide a high degree
of exibility including simultaneous multifunction measurements and harmonics analysis
capabilities.
A/D and DSP Technology
In order to accelerate the testing process, Radian Research has designed and incorporated a
custom integrating Analog to Digital Converter into the RD-30. There are separate A/D circuits
for both the voltage and current axes. Couple this enhancement with the utilization of DSP
technology and the RD-30’s abilities are greatly enhanced. The RD-30 can effortlessly collect
the converted digital signals from the A/D converters and process the data to display every
measurement function supported during a single collection of voltage and current data.
PCSupport
For enhanced analysis and testing, each RD-30 is equipped with a communications port. This
port will allow the user to connect to a personal computer running Radian Research software
packages providing for customization of the standard. Different congurations containing input
and output port designations, LCD menu operation and other parameters may be stored in RR-
PCSuite software and downloaded to any RD-30 unit for complete user customization.
RD-30 Operations Manual
Product Introduction
7
In addition, the RD-30 can analyze harmonic distortion complete with each order’s phase and
amplitude. This information can be studied in the laboratory with Radian software for a more
complete understanding of conditions at specic meter installations. Additionally, voltage and
current waveforms can be viewed in real-time and then captured for later investigation. Test
results of both revenue billing meters and eld standards can be stored enabling complete and
detailed histories to be recorded.
ClampOnCurrentTransformerInput
The RD-30 features a clamp-on current transformer input per phase. This option allows true
customer load testing without removing the meter from service.
VoltageInputs,CurrentInputs,AuxiliaryPowerInputs
The RD-30 provides full autoranging capability for the Potential Input, Auxiliary Power Input
and Current Input using electronically compensated input transformers designed by Radian.
The voltage and current inputs contain an enhanced design of Radian’s original electronically
compensated transformer. This feature ensures the unit will never be damaged by applying a
signal to the incorrect input. Current input options are 120 amps maximum per phase or 200 amps
maximum per phase direct connection.
With the safety of the user in mind, the connections have been updated to an insulated socket
design. The Potential Input and Auxiliary Power are 4mm connections and the Current Inputs are
6mm connections for the 120 amp model and bolt-on current connections for the 200 amp model.
RD-30 Operations Manual
Product Introduction
8
1.2 LaboratoryApplications
The accuracy and precision provided by the RD-30 allows it to easily test portable eld standards
of lesser accuracy. The optional built-in comparator allows for automatic test result calculations
for the eld standard being tested.
1.3 TestTableApplications
Due to its small package size, the RD-30 can easily be used as the reference within test tables
whenever a higher level of accuracy is desired. Programmable pulse outputs coupled with an RS-
232 communications port make it easy to receive data from the RD-30.
1.4 FieldTestingApplications
With a weight of only 6.81 kg (15 pounds), the RD-30 is conducive to eld-testing applications
where a high level of accuracy is desired. The optional built-in comparator allows for automatic
test result calculations of the meter being tested.
1.5 PowerAnalysis
Unlike off-the-shelf A/D Converters used in other instruments, Radian’s Dytronic
A/D Converter is specically designed and optimized for power and energy measurement. This
unique design allows the RD-30 to accurately measure non- sinusoidal waveforms up to and
including the 204th harmonic order. Measurement parameters include the phase and amplitude of
each harmonic as well as the total harmonic distortion. The unprecedented accuracy of measuring
distorted waveforms combines with this optional powerc analysis capability to clearly distinguish
the RD-30 as the denitive portable three-phase electricity standard for both meter testing and
power quality applications. This power analysis option is also useful when testing meters using
customer load.
1.6 CustomerLoadTesting
For those applications where meter testing with customer load is desired, the RD-30 is an
obvious choice because of its ability to accurately measure energy and power even with distorted
waveforms. The optional clamp-on current transformer inputs on each phase allows for testing
the meter using customer load without the need of interrupting service.
RD-30 Operations Manual
Product Intoduction
9
1.7 AutomaticCalculations
Optionally, The RD-30 offers a Built-in Computer for two types of applications. For laboratory
applications, the Built-in Computer can accept output pulses from a portable eld standard
and automatically calculate and display the error. For eld- testing applications, it can also
automatically calculate and display the error of the meter under test. In this eld-testing
application, various sensors (for disk rotation, infrared calibration pulses, KYZ pulses, etc.)
may be connected directly to the RD-30 and parameters for the test may be easily entered. At
the conclusion of the test, the results are automatically calculated and displayed on the LCD.
Optional sensors include the RD-DS Meter Disk Sensor, RD-1H Infrared Optical Pickup, RD-
1H/v Visible Optical Pickup, and RD-KYZ Pulse Input Adapter.
1.8 SoftwarePackages
The RD-30 also provides a serial communications port which allows direct connection to the
RS-232 serial port of a personal computer. In addition, Radian offers software packages to suit
various applications.
RR-PCSuite software allows for custom conguration of the RD-30 standard. This custom
conguration includes dening scrolling sequences, scrolling times, dening communication
ports including output pulse values, dening measurement displays, and other operation
parameters.
RR-MobileSuite software is used with the power analyzer functionality of the RD-30. RR-
MobileSuite provides the ability to view current and voltage waveforms in real time while
providing total harmonic distortion as well as analysis of harmonic order, phase and amplitude.
Waveforms may be saved for further analysis back at the meter laboratory.
RD-30 Operations Manual
Product Intoduction
10
RR-Kit software provides a library of subroutines for those customers that desire to write their
own programs to communicate with the RD-30.
PC-Mobile Suite software is an expanded, desktop or laptop version of RR-Mobile Suite which is
the test and measurement software loaded on the RD-30.
1.9 SafetyDesign
For enhanced safety, the potential, current and auxiliary power input connections to the RD-30 are
designed such that no harmful signals are accessible on the front of the standard. Lead kits may
be purchased from Radian Research.
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