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EXTERNAL AMPLIFIERS
AMI 332 − CURRENT AMPLIFIER 3X32A
The three phase current amplifier AMI 332 is an additional device to DRTS 66. The option requires IRIG-B connection and output extension module on DRTS 66 and it includes three current generators at 32 A each. In connection with the DRTS 66, the option offers the following features:
- To control nine currents at 32 A each at the meantime, for the test of two-secondary transformer protection relays;
- To have a three phase generator at 96 A per phase;
- To have a single phase generator at 192 A.
CURRENT GENERATORS POWER
| 3 x 0 … 32AAC 3 x 430 VA at 32 AAC |
| 1 x 0 ... 96AAC 1 x 1000 VA at 64 AAC |
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AMI 332 - Technical Specification
- Accuracy: Typical 0.02% of the value ± 0.01% of the range;
- guaranteed 0.04% of the value ± 0.01% of the range. Distortion: 0.05% Typical - 0.15% guaranteed.
- Resolution: 1 mA.
- Connections: 4 mm banana sockets.
AMI 632 − CURRENT AMPLIFIER 6X32A
The six phase current amplifier AMI 632 is an additional device to DRTS 66. The option requires IRIG-B connection and output extension module on DRTS 66 and it includes six current generators at 32 A each. In connection with the DRTS 66, the option offers the following features:
- To control twelve currents at 32 A each at the meantime, for the test of three windings transformer differential protection relays;
- To have a six phase generator at 64 A per phase;
- To have three phase generator at 128 A per phase;
- To have a single phase output at 256 A.
AMI 632 - Technical Specification
CURRENT GENERATORS POWER
| 6 x 0 … 32 A AC | 6 x 430 VA at 32 A AC |
| 3 x 0 … 64 A AC | 3 x 860 VA at 64 A AC |
| 1 x 0 … 128 A AC | 1 x 1000 VA at 64 A AC |
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- Accuracy: 0.02% of the value ± 0.01% of the range, Typical; 0.04% of the value ± 0.01% of the range, guaranteed.
- Distortion: 0.05% Typical; 0.15% guaranteed.
- Resolution: 1 mA.
- Connections: 4 mm banana sockets.
Power supply for AMI 332 and AMI 632
- Main power supply: 85V to 264 V AC, sinusoidal, single phase.
- Frequency: 45 to 65Hz.
- Powerconsumption:
- at rest: less than 150 W;
- maximum load, 115 V supply: 800/1600 W;
- maximum load, 230 V supply: 1300/2700 W. Connection: Standard 16 A AC socket.
Accessories supplied with the units. Protective carrying bag, power supply cable, test leads kit and connection cable to DRTS 66.
IN2−CDG CURRENT BOOSTER FOR 1 A RATED HIGH BURDEN RELAYS
The option IN2-CDG includes a set of three current transformers, with the following characteristics:
- Primaries: 12.5 A and 15 A. • Secondaries: 0.5 A; 1 A; 2.5 A; 5 A. Nominal power: 100 VA. Current ratio error: 0.2%.
Case: plastic. For the single phase test of the CDG relay it is possible to have three times the above power, connecting current outputs in series.
HPB 400 AND HPB 600 CURRENT BOOSTERS
These options are aimed at testing old electro-mechanical overcurrent relays; in particular, at relays rated 1 A. The power output is so high that it can test even relays rated at less than 1 A . Other features for HPB 400:
- Primary current: 32 A. • Secondary currents: 20 A, 4 A, 1 A. Other features for HPB 600:
- Primary current: 2 x 32 A. • Secondary currents: 20 A, 10 A, 4 A, 1 A.
For both options:
- Accuracy: 0.5% at half burden; 1% at full burden.
- Connections: two safety sockets for the primary side; four safety sockets for the secondary side.
TRANSCOPE: ANALOG/DIGITAL RECORDER AND MEASUREMENT FUNCTION
Optionally the test set can be provided with this feature to measure and record the following:
- 10 voltages or currents (with clamps or external shunts) AC and DC meter and recorder;
- Phase angle, wattmeter, frequency, harmonics meter, power quality meter;
- Oscilloscope functions;
- Sequence of Event recorder (up to 10 digital inputs);
- Fault recording function. Input characteristics:
- Five isolated groups of two input circuits each.
- Inputs ranges: 100mV; 1; 10; 100; 600 V.
- Input impedance: 500 kOhm, 50 pF.
- Measurement accuracy: ± 0.06% typical; ± 0.15% guaranteed.
- Sampling frequency: 5 kHz, 10 kHz, 20 kHz, 50 kHz, software selection.
- Total buffer size: 4 Mbytes.
- Maximum recording duration:
- at 5 kHz: 6 min for 1 input channel / 40 s for 10 input channels.
- at 50 kHz: 40 s for 1 input channel / 4 s for 10 input channels.
Connections: 4 mm banana sockets. This option is to be specified at order.
INTERNAL GPS SYNCHRONIZER
The GPS synchronizer is an internal module that allows to synchronize the test start of two DRTS 66 or other test sets.
- Maximum timing error with respect to nominal: ± 1 µs. The option includes:
- the antenna;
- an extension cable for the antenna, 20 m long. This option is to be specified at order.
EXTERNAL GPS SYNCHRONIZER
The GPS synchronizer is an external module that allows to synchronize the test start of two DRTS 66. Features:
- 1 digital output O-24 V DC, for synchronization.
- 1 selector to program the following pulse intervals: 5 s; 10 s; 20 s; 30 s; 40 s; 60 s.
- Maximum timing error with respect to nominal: 2 µs.
- Lights to confirm: power-on; Locked; Pulse available.
- 1 START and STOP push-button.
- Power supply: 110/22O V AC. The option includes:
- the antenna;
- an extension cable for the antenna, 20 m long;
- two cables, red and black, 2 m long, with banana terminations, for the connection to the test set trip input;
- the power supply cable.
- Weight: 1.7 kg.
- Dimensions: 150 (w) x 100 (h) x 240 (d) mm.
- Case: aluminium.
SH 2003 ENERGY METERS UNIVERSAL SCANNING HEAD
SH 2003 is a scanning head that eases the test of energy meters. lt is an universal scanning head because it can be used both with LED impulse electronic meters and Ferraris rotating disk meters. With rotating disk the sensor uses a green light beam that optimizes the recognition of any type of mark. With LED recognition the following specification applies:
- lmpulse duration: more than 60 us;
- lmpulse frequency: less than 500 Hz;
- Duty cycle: 50%;
- Light wavelength: 500 to 960 nm (red). The option includes:
- A support to keep the scanning head in front of the energy meter;
- The cable, 2 m long, from the scanning head to the DRTS 66;
- The power supply transformer, for the power of 220 V AC, to supply the scanning head.
IEC 61850 INTERFACE
IEC 61850−8
The standard IEC61850 describes the communication ofdevices in substations. IEC61850 messages coming from the devices connected to the substation network are also called GOOSE. GOOSE messages describe binary status signals over the substation network and are also used for relaystripping. For relay testing applications within IEC61850 substations it is necessary to access these data. This new feature is performed by the ISA Automatic Relay Test Set DRTS 66. By means of a dedicated hardware and by the TDMS software, ISA DRTS 66 can expand its testing capabilities by handling IEC61850 messages. The IEC61850 Interface option for DRTS 66 is required for relay testing with Ethernet-based substation communication protocol. The IEC61850 Interface is mounted on the front panel of DRTS 66. The option has to be specified atorder.
IEC 61850−9−2
The IEC 61850-9 option allows generating measurement messages on the system bus. The option and the associated software provide the following features:
- injection of Sampled Values on the system bus, corresponding to CT and VT measurements;
- test of relays connected to the system bus, by the generation of Sampled Values and the monitoring of the relay tripping, as described above.
The connection is performed viaan opticalfiber connector, mounted on the rear of the test set. The option has to be specified at order.
RELAY CONNECTION CABLE KIT
This option can be added to the basic cable kit to provide connection to all test set sockets. It includes also 20 adap- tors for terminal block connections and 3 jumpers to parallel currentoutputs.
TRANSIT CASE
Three options are available:
- Heavy duty plastic transport case (Discovery type)
- Heavy duty transport case
- Soft carrying bag
PLCK POLARITY CHECKER MODULE
Checking the correct connection of CT’s and VT’s to protection relays is a problem because relays can be hundreds of meters away from the transformer. PLCK easilys solves the issue.When this test is started, DRTS 66 generates a special, not sinusoidal waveform, which is injected into the connection cables. The polarity check is easily performed by connecting it at the relay site. PLCK hast wo lights: green and red. The green light turns on when the polarity is correct; the red light turns on when the polarity is wrong.
