DRTS L
Digital Relay Test System
Precision meets purpose in the Doble DRTS L seriesDesigned specifically for modern relays with 1 A (ampere) CT inputs, any of the four variants offers robust analog and digital functionality for single and three-phase testing across relays, IEDs, energy meters, power quality meters, and transducers. Choose the model with the current and voltage configuration you require and have high accuracy across 0.16 A, 1.6 A, and 16 A ranges plus multiple integrated test and measurement tools in a right-sized instrument built for precision—not excess.
IEC 61850 CompatibleDedicated CPUs, one for publishing sampled values (optional) and one for publishing and subscribing to GOOSE mean uncompromising performance when testing IEDs in digital protection and control schemes.
Supports Advanced DiagnosticsTranscope™ is a feature of TDMS Pro software that converts analog trip inputs into tools for network analysis:
Efficient and PracticalInstrument layout and Class D amplifiers contribute excellent heat dissipation. Easily removable current and voltage modules simplify instrument maintenance.
ErgonomicCompact dimensions (35 W x 18 H x 35 D cm), limited weight, multi-position locking handle, retractable tilt feet that elevate the front panel during horizontal use, and two bumpers that provide protection from impacts and allow secure upright operation

3 x 16 A, 3 x 300 V
Weight: 13.4 kg (29.5 lbs)
Dimensions: 350 (W) X 180 (H) X 350 (D) mm
| CURRENT OUTPUT | |
| Number of Current Channels | 3 |
| Max Current per Channel | 16 A |
| Max Power per Current Channel | 3 X 100 VA @ 8 A to 16 A |
| Max 1-phase Current (all generators connected in parallel) | 1 x 48 A |
| Max 1-phase Power (all generators connected in parallel) | 1 X 300 VA @ 48 A |
| Max 1-phase Power (generators in series) | 1 X 200 VA @ 16 A |
| Max DC Current | 48 A |
| VOLTAGE OUTPUT | |
| Number of Voltage Channels | 3 |
| Max Voltage per Channel | 300 V |
| Max Power per Voltage Channel | 3 x 50 VA @ 125 V to 300 V |
| Max 3-phase Power | 3 x 50 VA @ 125 V to 300 V |
| Max 1-phase Voltage (2 voltage generators in series) | 600 V |
| Max 1-phase Power (2 voltage generators in series) | 100 VA @ 0 V to 600 V |
| Max DC Power | 270 W @ 300 V |
View the full technical specifications in the brochure
ConfigurationsDRTS L-Series test sets are offered in three levels – Core, Expanded, and Full – allowing you to choose configurations that best suit for your testing requirements and operational environment.

3 x 16 A, 4 x 300 V
Weight: 13.6 kg (30 lbs)
Dimensions: 350 (W) X 180 (H) X 350 (D) mm
| CURRENT OUTPUT | |
| Number of Current Channels | 3 |
| Max Current per Channel | 16 A |
| Max Power per Current Channel | 3 X 100 VA @ 8 A to 16 A |
| Max 1-phase Current (all generators connected in parallel) | 1 x 48 A |
| Max 1-phase Power (all generators connected in parallel) | 1 X 300 VA @ 48 A |
| Max 1-phase Power (generators in series) | 1 X 200 VA @ 16 A |
| Max DC Current | 48 A |
| VOLTAGE OUTPUT | |
| Number of Voltage Channels | 4 |
| Max Voltage per Channel | 300 V |
| Max Power per Voltage Channel | 4 x 50 VA @ 125 V to 300 V |
| Max 3-phase Power | 3 x 50 VA @ 125 V to 300 V |
| Max 1-phase Voltage (2 voltage generators in series) | 600 V |
| Max 1-phase Power (2 voltage generators in series) | 100 VA @ 0 V to 600 V |
| Max DC Power | 270 W @ 300 V |
View the full technical specifications in the brochure
ConfigurationsDRTS L-Series test sets are offered in three levels – Core, Expanded, and Full – allowing you to choose configurations that best suit for your testing requirements and operational environment.

6 x 16 A, 4 x 300 V
Weight: 15.8 kg (34.8 lbs)
Dimensions: 350 (W) X 180 (H) X 350 (D) mm
| CURRENT OUTPUT | |
| Number of Current Channels | 6 |
| Max Current per Channel | 16 A |
| Max Power per Current Channel | 6 X 80 VA @ 6 A to 16 A 3 X 100 VA @ 8 A to 16 A |
| Max 3-phase Current (outputs connected in parallel in pairs) | 3 X 32 A |
| Max 3-phase Power (outputs connected in parallel in pairs) | 3 X 160 VA @ 12 A to 32 A |
| Max 1-phase Current (all generators connected in parallel) | 1 x 96 A |
| Max 1-phase Power (all generators connected in parallel) | 1 X 480 VA @ 96 A |
| Max 1-phase Power (generators in series) | 1 X 200 VA @ 16 A |
| Max 1-phase Power (outputs connected in parallel in groups of 3) | 1 x 320 VA @ 32 A |
| Max DC Current | 48 A |
| VOLTAGE OUTPUT | |
| Number of Voltage Channels | 4 |
| Max Voltage per Channel | 300 V |
| Max Power per Voltage Channel | 4 x 50 VA @ 125 V to 300 V |
| Max 3-phase Power | 3 x 50 VA @ 125 V to 300 V |
| Max 1-phase Voltage (2 voltage generators in series) | 600 V |
| Max 1-phase Power (2 voltage generators in series) | 100 VA @ 0 V to 600 V |
| Max DC Power | 270 W @ 300 V |
View the full technical specifications in the brochure
ConfigurationsDRTS L-Series test sets are offered in three levels – Core, Expanded, and Full – allowing you to choose configurations that best suit for your testing requirements and operational environment.

6 x 16 A, 6 x 300 V
Weight: 16 kg (35.3 lbs)
Dimensions: 350 (W) X 180 (H) X 350 (D) mm
| CURRENT OUTPUT | |
| Number of Current Channels | 6 |
| Max Current per Channel | 16 A |
| Max Power per Current Channel | 6 X 80 VA @ 6 A to 16 A 3 X 100 VA @ 8 A to 16 A |
| Max 3-phase Current (outputs connected in parallel in pairs) | 3 X 32 A |
| Max 3-phase Power (outputs connected in parallel in pairs) | 3 X 160 VA @ 12 A to 32 A |
| Max 1-phase Current (all generators connected in parallel) | 1 x 96 A |
| Max 1-phase Power (all generators connected in parallel) | 1 X 480 VA @ 96 A |
| Max 1-phase Power (generators in series) | 1 X 200 VA @ 16 A |
| Max 1-phase Power (outputs connected in parallel in groups of 3) | 1 x 320 VA @ 32 A |
| Max DC Current | 48 A |
| VOLTAGE OUTPUT | |
| Number of Voltage Channels | 6 |
| Max Voltage per Channel | 300 V |
| Max Power per Voltage Channel | 6 x 45 VA @ 125 V to 300 V |
| Max 3-phase Power | 3 x 50 VA @ 125 V to 300 V |
| Max 1-phase Voltage (2 voltage generators in series) | 600 V |
| Max 1-phase Power (2 voltage generators in series) | 100 VA @ 0 V to 600 V |
| Max DC Power | 270 W @ 300 V |
View the full technical specifications in the brochure
ConfigurationsDRTS L-Series test sets are offered in three levels – Core, Expanded, and Full – allowing you to choose configurations that best suit for your testing requirements and operational environment.
TDMS ProTDMS Pro is the integrated test and data management software of the DRTS family of digital relay test sets from Doble. With intuitive functionality that seamlessly blends modularity and visual workflows, TDMS Pro maximizes the performance of test engineers using DRTS equipment in ways that help them accelerate through all types of relay and secondary device tests with confidence.
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