T&D World Magazine

Unit Tests Protective Relays, Energy Meters, Transducers, PQ Meters

ISA has announced the new DRTS 66, a powerful and accurate test set for protective relays, energy meters (class 0.1), transducers and power quality meters. The unit is controlled from the front panel by a large color display, a keypad and a knob or by a laptop PC with TDMS Test & Data Management Software.

TDMS advanced software incorporates manual and automatic testing functionalities, editor of report, and database management. DRTS 66 generates high precision (0.05% accuracy) digital signal using multiple DSP’s technology. Its powerful current outputs (6 x 32 A at 430 VA or 3 x 64 A at 860 VA) and voltage outputs (6 x 300V at 100 VA) allow to test any type of relays including old electromechanical relays.

The test set integrates the IEC61850 substation protocol interface for testing modern relays with Ethernet-based substation communication protocol.

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.

With the optional Transcope module the DRTS 66 becomes also a powerful multichannel transient and fault recorder, a phase angle meter, wattmeter, frequency, harmonics meter and power quality meter. DRTS 66 has USB and Ethernet interface for PC and GPS/IRIG-B interface for end to end synchronization.

Three hardware configurations are available to fulfill any maintenance and commissioning requirements:

  • DRTS 66: with 6 Current and 6 Voltage generators plus 1 battery simulator.
  • DRTS 64: with 6 Current and 4 Voltage generators plus 1 battery simulator.
  • DRTS 34: with 3 Current and 4 Voltage generators plus 1 battery simulator.
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