DRTS 33- Automatic relay testing system

A new generation of advanced test equipments for relays, energy meters, transducers and power quality meters

Model: DRTS 33

Producer: ISA

Country of origin: Italy

DRTS 33: with 3 Current and 3 Voltage generators plus 1 battery simulator

Request your quotation

Key features

Testing all relay technologies: electromechanical, solid state, numerical and IEC61850
Manual control with color display
Simultaneously available: 3 Current and 3 Voltage plus 1 battery simulator outputs
High current outputs: 3 x 32 A, 1 x 96 A
High power outputs: 3 x 420 VA, 1 x 1000 VA
High accuracy outputs: better than 0.05%
IEC 61850 protocol interface


DRTS 33 is the leading edge, most powerful and accurate relay, energy meters (class 0.1) and transducers test set manufactured by ISA. The locally and PC controlled test set generates high precision (0.05% accuracy) signals using multiple DSP technology.

Its powerful current outputs (3 x 32 A at 420 VA) and voltage outputs (3 x 300 V at 100 VA) allow to test any type of relays including electromechanical relays.The test sets integrate the IEC 61850 protocol interface for testing relay with Ethernet-based substation communication protocol.

DRTS 33 can be operated directly from the front panel by means of a large color graphical display, a rotary selector, a keypad and function keys. Two PC interfaces, USB and Ethernet, allow to control the test set with the advanced testing software TDMS. It can also be operated by the optional Local Touch Control (touch screen) module that can be used attached or detached from the test set.

DRTS 33 can test all the following relays
Distance relay
Synchronizing device
Under/over-voltage relay
Directional Power relay
Field relay
Reverse phase current relay
Phase sequence voltage relay
Incomplete sequence relay
Instantaneous over-current relay
Inverse time over-current relay
Power factor relay
Voltage balance relay
Ground detector relay
Directional over-current relay
Phase angle out of step relay
Automatic reclosing relay
Frequency relay
Pilot wire receiver relay
Lockout relay
Differential protection relay
Voltage directional relay
Power directional relay
Tripping relay
Interface Connections
Type of interfaces:
USB, Ethernet, IEC 61850, IRIG-B.
Characteristics of USB interface:
Transmission rate: 3x minimum
Interface cable: 2 meters, included
Characteristics of the ETHERNET interface:
Connector type: RJ-45
Interface cable: 2 meters, included
Characteristics of the IEC61850 interface (optional):
Connector type: RJ-45
Interface cable: 2 meters, included
Characteristics of the IRIG-B connection (optional):
Fiber optic connector, ST type.
Another features of the generator
Internal Memory
256 Mb internal memory suitable to store in the test set approximately 2.000 test results
Pen Drive Interface
It allows saving and recalling local test setting and results
Display - Keypad - Function Keys - Endecoder
One Encoder: digital rotary switch
One Keyboard: 12 keys
Five Function keys
Display: 256 colours, type LED, graphic 320 x 240 pixels; dimension 5.7 inches
Power Supply
Mains power supply: 85 to 264 V AC, sinusoidal, single phase
Frequency: 45 to 65 Hz
- stand-by: less than 150 W;
- maximum load, 115 V supply: 1600 W;
- maximum load, 230 V supply: 2700 W.
Connection: Standard 16 A AC socket.
Weight and Dimensions
Weight: 18 kg (39 lb)
Dimensions without the handle: 150 (h) x 466 (w) x 423 (d) mm (5.9 x 18.3 x 16.9’’)
Accessories Supplied with the Unit
Protective carrying bag
Set of test leads: 12 cables
Power supply cable
Ground connection cable
USB and Ethernet cables
Instruction and maintenance manuals
Applicable standards
Electromagnetic compatibility: Directive 2004/108/EC. Applicable Standard: EN61326:2006.
Low voltage: Directive 2006/95/EC (CE conform)
Applicable standard, for a class I instrument, pollution degree 2,
installation category II: CEI EN 61010-1
Operating temperature: 0 - 55°C
Storage: -25°C to 70°C
Relative humidity: 5 - 95%, without intermal condensation
Altitude: < 2000 m
Applicable also to external amplifiers AMI 332 and AMI 632

More Information?

Contact us by filling out this form:


We call you