ISA DRTS.3 PLUS User manual

DOC.SIE62153 DATE: 08/12/2008 REV. 1
INSTRUMENT DRTS.3 PLUS
FOR TESTING PROTECTIVE RELAYS,
ENERGY METERS AND TRANSDUCERS

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REVISIONS
SUMMARY
VISA
N.
PAGE
DATE
1
All
08/12/2008
Issued
Lodi

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1 GENERAL .......................................................................................................................................................................................4
1.1THE INSTRUMENT.........................................................................................................................................................................4
1.2OPTIONS.........................................................................................................................................................................................5
1.3TDMS, THE SOFTWARE FOR DRTS.3 PLUS...........................................................................................................................5
2 APPLICABLE STANDARDS ....................................................................................................................................................6
2.1ELECTROMAGNETIC COMPATIBILITY........................................................................................................................................6
EMISSION....................................................................................................................................................................................6
IMMUNITY..................................................................................................................................................................................6
1.2LOW VOLTAGE DIRECTIVE..........................................................................................................................................................6
3 CHARACTERISTICSOF THE UNIT....................................................................................................................................7
3.1 GENERAL.....................................................................................................................................................................................7
3.2 THREE PHASE CURRENT GENERATOR......................................................................................................................................8
3.3 FOUR PHASE VOLTAGE OUTPUT................................................................................................................................................8
3.4 FOURTH VOLTAGE OUTPUT V4..................................................................................................................................................9
3.5 ANGLES......................................................................................................................................................................................10
3.6 OUTPUT FREQUENCY................................................................................................................................................................10
3.7 LOW VOLTAGE OUTPUTS.........................................................................................................................................................11
3.8 TIME MEASUREMENTS.............................................................................................................................................................11
3.9 AUXILIARY OUTPUTS................................................................................................................................................................12
3.10 INTERFACE CONNECTIONS.....................................................................................................................................................12
3.11 OPERATOR’S LIGHTS...............................................................................................................................................................12
3.12 SEQUENCE OF COMMANDS.....................................................................................................................................................12
3.13 TRANSIENT FILES REPRODUCTION........................................................................................................................................13
3.14 PROTECTIONS..........................................................................................................................................................................13
3.15 POWER SUPPLY........................................................................................................................................................................14
3.16 ENCLOSURE..............................................................................................................................................................................14
3.17 ACCESSORIES............................................................................................................................................................................14
3.18 WEIGHT AND DIMENSIONS.....................................................................................................................................................14
4 DRTS.3 PLUS OPTIONS.............................................................................................................................................................15
4.1OUTPUT VOLTAGE......................................................................................................................................................................15
4.2OPTIONAL CURRENT AND VOLTAGEMEASUREMENTS..........................................................................................................15
4.3HIGH PRECISION MODEL...........................................................................................................................................................15
4.4BATTERY SIMULATOR................................................................................................................................................................16
4.5IEC61850 OPTION;CODE PII80156.........................................................................................................................................17
4.6RELAY CONNECTION CABLES;CODE ZII15156......................................................................................................................18
4.7 GPSSYNCHRONIZER;CODE ZII10161 ....................................................................................................................................18
4.8SHA-6ENERGY METERS UNIVERSAL SCANNING HEAD;CODE ZII20162...........................................................................19
4.9IN2-CDGCURRENT BOOSTER FOR 1ARATED RELAYS AND FORTHE CDGRELAY OF GE; CODE ZII99156.............20
4.10 TRANSIT CASE ..........................................................................................................................................................................20
4.11 MAINS SYNCHRONISER OPTION,CODE PII24156.................................................................................................................20
5 THREE PHASE CURRENT AMPLIFIER AND TWO VOLTAGE AMPLIFIER AMIV-66 ................................22
5.1INTRODUCTION...........................................................................................................................................................................22
5.2TECHNICAL CHARACTERISTICS................................................................................................................................................22
5.2.1 Three phase current generator......................................................................................................................................22
5.2.2 Two phase voltage generator.........................................................................................................................................23
5.2.3 Power supply.....................................................................................................................................................................23
5.2.4 Enclosure...........................................................................................................................................................................24
5.2.5 Accessories supplied with the unit................................................................................................................................24
5.2.6 Weight and dimensions...................................................................................................................................................24
5.2.7 Protections........................................................................................................................................................................24

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1 GENERAL
1.1 The instrument
The instrument DRTS.3 PLUS (digital relay test system, three phase) is a programmable and
automatic relay test set, that permits for the automatic verification of digital protection relays, such
as those used in Medium and High voltage networks.
As compared to the former DRTS.3, the DRTS.3 PLUS version generates 15 A instead of 12.5 A.
The test bench is housed in a case 3 U high, that contains: the power supply, the interface circuits,
the control boards, the voltage and current amplifiers. The set is housed into an aluminium
container with handle for ease of transportation; the instrument is supplied with a plastic bag for
protection during transit.
The instrument operates in connection with a computer, that controls it via the RS232 serial port or
the USB port. The firmware FWH6, contained in a FLASH EPROM resident into the instrument,
allows the instrument to interpret all commands received from the computer and to transmit test
results.
Software running on the P.C. allow the user to:
. Control all current and voltage outputs, for the simulation of all types of faults: in particular, faults
that are produced on a distribution network with the neutral connected to ground;
. Change the output in a ramp or step mode;
. Define the state of inputs and outputs between two fault simulations;
. Simulate complex evolution, with faults that change during the test.
RS232
A1C1
ANALOG INPUT
C5
A2C2 C6
A3C3 C7
A4C4 C8
C C
IMP1
250 5 AV ~
V ~ V ~
250 V ~
EXT. AMP.
20 A ~
250 V ~ 10 V ---
20 mA ---
0
0
DRTS-6
AUTOMATIC RELAY TESTING
AND MEASUREMENT SYSTEM
OK
!
ERR
ON
110/230 V 50/60 Hz
~
T16A 250V
!
V1
V2
V3
I4
I5
I6
INVN
V
---
15 A ~
260 V
---
125/300 V ~
V0/V4
I1
I2
I3
IMP2
IN
!
DRTS.3 PLUS FRONT PANEL
RTS.3

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1.2 Options
There are many options available for DRTS.3 PLUS: they are described in detail on chapter 4.
1.3 TDMS, the software for DRTS.3 PLUS
All controls of the instrument are performed by the software TDMS, which is described in
document MSE10015.

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2 APPLICABLE STANDARDS
The test set DRTS.3 PLUS and optional modules conform to the EEC directives regarding
Electromagnetic Compatibility and Low Voltage instruments.
2.1 Electromagnetic Compatibility
Directive no. 2004/108/EC. Applicable Standard : EN61326-1 + A1 + A2.
EMISSION
-EN 61000-3-3: Limitation of voltage fluctuations and flicker. Acceptable limits: basic.
-CISPR16 (EN 55011 class A): Limits and measurement methods of radio-electric disturbances for
industrial, medical and scientific instruments at radio-electric frequencies.
Acceptable limits for conducted emission:
. 0.15-0.5 MHz: 79 dB pk; 66 dB avg.
. 0.5-5 MHz: 73 dB pk; 60 dB avg.
. 5-30 MHz: 73 dB pk; 60 dB avg.
Acceptable limits for radiated emission:
. 30-230 MHz: 40 dB (30 m)
. 230-1000 MHz: 47 dB (30 m)
IMMUNITY
-EN 61000-4-2: Immunity tests for ESD. Test values: 8 kV in air; 4 kV in contact.
-EN 61000-4-3; Immunity tests for radio frequency interference. Test values (f= 900 ±5 MHz):
field 10 V/m, modulated AM 80%; 1 kHz
-EN 61000-4-4; Immunity tests for high speed transients (burst). Test values: 2 kV peak; 5/50 ns.
-EN 61000-4-5; Immunity tests for surge. Test values: 1 kV peak differential mode; 2 kV peak
common mode; 1.2/50 us.
-EN 61000-4-6: immunity to low-voltage sinusoidal waveform. Test values: 0.15-80 MHz, 3 Vrms,
80% AM 1 kHz.
-EN 61000-4-8: Immunity tests for low frequency magnetic fields. Test values: 30 Arms/m.
-EN 61000-4-11: Immunity test for power supply drops. Test value: 1 cycle; 100% drop.
1.2 Low voltage directive
Directive n. 2006/95/EC. Applicable standard: CEI EN 61010-1. In particular:
-Dielectric Rigidity: 1.4 kV, 1 minute.
-Isolation resistance: > 2 MOhm.
-Earth resistance : < 0.1 Ohm.
-Dispersion current: < 5 mA.
-Inputs/outputs protection: IP 2X -IEC 60529.
-Operating temperature: 0 -50°C; storage: -25°C to 70°C.
-Relative humidity : 5 -95%, not condensing.
-Vibration: IEC 68-2-6 (20 m/s^2 at 10 – 150 Hz);
-Shock: IEC 68-2-27 (15 g; 11 ms; half-sine).
-Altitude: less than 2000 m.

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3 CHARACTERISTICS OF THE UNIT
3.1 General
This section resumes the characteristic and the performances of the instrument. Listed
characteristics are all used when the instrument is connected to a computer, with the corresponding
commands.
In separate documents are described:
-The DRTS.3 PLUS user's guide;
-The resident program FWH6;
-The software TDMS.
On the instrument the following connections are available:
-Mains power supply (2 phase with ground);
-Four voltage outputs V1-V4, with a common neutral point;
-Three current outputs I1-I3, with a common neutral point;
-Ten input trip contacts, divided in two groups C1-C4+IMP1 and C5-C8+IMP2, with two
zero references;
-Four auxiliary output contacts A1-A4, without a common point;
-Serial interface RS232 and USB interface;
-Ethernet connector, for the IEC61850 option;
-Four measurement inputs: two for currents (low and high) and two for voltages (low and
high), for the optional board;
-The EXT. AMPL. female connector with low-power analog signals output, for external
booster or zero-power mode.
Note: connectors are always present even if the optional circuits aren’t present into the module.
Besides, on the front panel are available :
-Power-on switch;
-Four lights indicating the status of the instrument;
-Eight lights for the status of trip input (turn on when closed);
-Four lights for the status of auxiliary outputs(turn on when closed);
-One light per voltage and current output, that turns on when it is active.
When the instrument is turned on it performs a self-diagnostic check of all of the logic and analog
circuits. During the use, the instrument watches continuously the outputs, checking that they do not
deviate from the nominal.
The principal operation are as follows:
-Connect DRTS.3 PLUS to the portable PC, using the supplied cable;
-Connect DRTS.3 PLUS to the relay that is to be tested. The input trip contacts can be either
clean or with voltage, polarized using the optional DC voltage output, or the DC voltage of
the site;
-Execute the test;
-Test results are examined one at a time on the screen of the PC, and printed later on, after
they have been saved.
In the user manual, furnished with the instrument, are contained the following information:
-User's guide;

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-Electrical drawings;
-Diagnostic information, failure area, intervention procedures.
3.2 Three phase current generator
-Three independent current sources, with a common neutral.
-Type of connection: safety banana sockets.
-For each output, a light turns on when the output is applied.
-Output ranges, and corresponding power and resolution.
RANGE
OUTPUTS
CONNECTION
CURRENT
(A)
POWER
(VA)
Z MAX
(Ohm)
RESOL.
1
3 X
DIRECT
0…15
100
0.
44
230 µA
2
3 X
DIRECT
0…1.5
0.
44
23 µA
3
3 X
DIRECT
0…0.15
0.44
2 µA
4
1 X
3 IN PARALLEL
0…45
300
0.15
690 uA
5
1 X
T
WO IN SERIES
0…15
200
0,88
230 µA
-Independent adjustment of current outputs.
-Duty cycle: continuous.
-Waveform resolution: 28 bit (16 for the amplitude, 12 for the shape).
-Output frequency: 0 to 2 kHz; 5 kHz on reproductions.
-Output adjustable from zero to the maximum value.
-Possibility of step changing the value of the output within 0.1 ms.
-Possibility of current ramping. Rate of change programmable between ± 0.001 A/s and ±
999 A/s.
-Output accuracy; 40 to 60 Hz; 23 °C ± 5 °C.
. Typical: ± 0.05% of the regulated value ± 0.01% of the full scale range (ranges 1.5 and 15
A), or ± 0.5 mA (range 0.15 A).
. Maximum: ± 0.1% of the regulated value ± 0.02% of the full scale range (ranges 1.5 and 15
A), or ± 1 mA (range 0.15 A).
-Output accuracy; 0 to 40 Hz.: ± 0.5% of the regulated value ± 1 mA (range 150 mA); ± 4
mA (range 1,5 A); ± 10 mA (range 15 A).
-1 kHz maximum attenuation: 3% (0,3 dB).
-2 kHz maximum attenuation: 5% (0,5 dB).
-Temperature coefficient: ± 0,01%/°C, at 50 to 60 Hz; ± 0,02%/°C, for other frequencies.
-Power supply variation: zero.
-Accuracy with: burden from 30% to 100%, and power factor less than 0.8: maximum 0,2% of
the regulated value ± 0.05% of the full scale range.
-Gradient accuracy: ± 0.5% of the selected value, with minimum rate of 200 mA/s.
-Distortion: 0.1% .
-Automatic protection for overloads (including open circuit). In this case, the output is
taken to zero and the ! LED turns on.
3.3 Four phase voltage output
-Four independent voltage sources, with a common neutral.
-Type of connection: safety banana sockets.
-For each output, a light turns on when the output is applied.
-Output ranges, and corresponding power and resolution.

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RANGE
OUTPUTS
CONNECTION
VOLTAGE
(V)
POWER
(VA)
Z MAX
(Ohm)
RESOLUT.
14 X DIRECT 0…125 85 200 1.9 mV
23XDIRECT 0…125 100 160 1.9 mV
33 X DIRECT 0…12,5 160 190
µ
V
43 X DIRECT 0…1 160 19
µ
V
51 X 2 IN SERIES 0…250 200 320 3.8 mV
61X 2 IN PARALLEL 0…125 200 80 1.9 mV
OPTIONAL 300 V OUTPUT
14X DIRECT 0…300 85 1125 4.6 mV
13XDIRECT 0…300 100 900 4.6 mV
23X DIRECT 0…125 100 160 1.9 mV
33X DIRECT 0… 12.5 160 190
µ
V
41X 2 IN SERIES 0…600 200 1800 9.2 mV
51X 2 IN PARALLEL 0…300 200 450 4.6 mV
-Independent adjustment of voltage outputs.
-Duty cycle: continuous.
-Waveform resolution: 28 bit (16 for the amplitude, 12 for the shape).
-Output frequency: 0 to 2 kHz; 5 kHz on reproductions, for the 125 V output; 0 to 700 Hz, 5
kHz on reproductions, for the optional 300 V output.
-Output adjustable from zero to the maximum value.
-Possibility of step changing the value of the output within 0.1 ms.
-Possibility of ramping the voltage. Rate of change programmable between ± 0.001 V/s and ±
999 V/s.
-Output accuracy, 40 to 60 Hz; 23 °C ± 5 °C.
. Typical: ± 0.05% of the regulated value ± 0.01% of the full scale range (ranges 12.5, 125 and
300 V), or ± 1 mV (range 1 V).
. Maximum: ± 0.1% of the regulated value ± 0.02% of the full scale range (ranges 12.5, 125
and 300 V), or ± 2 mV (range 1 V).
-Output accuracy; 0 to 40 Hz.: ± 0.5% of the regulated value ± 2 mV (range 1 V); ± 10 mV
(range 12,5 V); ± 50 mV (range 125 V); ± 120 mV (range 300 V).
-700 Hz maximum attenuation (300 V model): 1% (0,1 dB).
-1 kHz maximum attenuation: 3% (0,3 dB).
-2 kHz maximum attenuation: 5% (0,5 dB).
-Temperature coefficient: ± 0,01%/°C, at 50 to 60 Hz; ± 0,02%/°C, for other frequencies.
-Power supply variation: zero.
-Accuracy with: burden from 30% to 100%, and power factor less than 0.8: maximum 0,2% of
the regulated value ± 0.05% of the full scale range.
-Voltage gradient accuracy: ± 0.5% of the selected value, with minimum gradient of 200
mV/s.
-Distortion: 0.1% total maximum, with any load.
-Automatic protection for overloads (short circuit included). In this case, the output is taken
to zero and the ! LED turns on.
3.4 Fourth voltage output V4
-The fourth voltage output can be selected via software to act as:
. Fourth voltage output V4;

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. Zero-sequence component VO of the other three voltages V1, V2 V3. Via software the output can
be selected to be: VO = (V1+V2+V3)/3 or VO = (V1+V2+V3)/1.73 (bolded stays for vector sum).
Note that with last two selections the zero sequence component is limited to 125 V (or 300 V if the
optional range is available).
-For the zero-sequence output, the following specifications apply.
. Range: 125 V – Optionally 300 V.
. Output accuracy: ± 0.5% of the value ± 0.1% of the range.
3.5 Angles
-All angles are referred to the same absolute reference.
-Possibility to set independently the angle of all outputs: V1; V2; V3; V4; I1; I2; I3; I4; I5; I6, in
the field between zero and ± 360° (phase angle).
-Possibility of slewing all the angles. Variation range: 0.1°/s to 999 °/s.
-Angle resolution: 0.01°.
-Angle accuracy (40 to 60 Hz): typical ± 0.02°; maximum ± 0.1°.
-Angle accuracy (5 to 40 Hz): maximum ± 1°.
-Angle accuracy (60 to 2 kHz): maximum ± 5°.
3.6 Output frequency
-Possibility of selecting the output frequency between 0.0000 and 1999.9999 Hz.
-Possibility to set the fault frequency on:
. All outputs;
. V1 only;
. Voltages V1-V2 -V3;
. I1 plus V1 – V2 – V3;
. All outputs unless V4;
. V1 and V2.
With all selections unless the first one, not selected outputs stay at pre-fault frequency.
-Maximum frequency error: 0.5 ppM (25 uHz @ 50 Hz).
-Temperature drift of the oscillator frequency: 0,1 ppM/°C.
-Resolution: 0.1 mHz.
-Possibility of step switching the output frequency, separately or together with the amplitude
change.
-Possibility of slewing the frequency, with a slope from 0.001 Hz/s to 999.999 Hz/s. Resolution:
0.001 Hz/s.
-Slew accuracy: 0.01 Hz/s, with a minimum of 0.1 Hz/s.