• Performs standard relay calibration and verification testing of high burden and microprocessor relays
  • Analog testing of 1A and 5A protection devices
  • Performs state simulation and transient testing
  • Tests 0.2-class metering CTs and transducers
  • Implements end-to-end testing of communications-based schemes with GPS time syncing
  • Maximum of 12 sources (six voltage, six current) configurable for bench testing and proof-of-concept testing for complicated relaying schemes
  • Delivers full VA power with resistive, inductive and capacitive loads at maximum current rating (6×35, 3×70, 1×210 amps)
  • Control all sources from a tablet device for basic, manual protection testing
  • Select from a number of protective relay tester models that feature varying power levels and complexity. Choose the best solution according to your testing and budgetary requirements.
  • Rugged construction and proven state-of-the art design provide laboratory accuracy with uncompromising field performance
  • Convenient front-panel display indicates active voltage/current amplitudes and phase values during testing
  • High-precision measurements for energy meter and transducer testing


Protection Software

What types of protection testing functions do you need? Which types of devices are you testing?

Doble provides a complete range of software solutions for all types of applications. Perform manual and automated testing on all types of protective devices and schemes – and organize this critical information in databases with robust reporting capabilities needed to meet your testing practices and regulatory requirements. Customize the types of software solutions you need throughout your organization.


RTS | Protection Suite | F6TesT | PowerBase

2018 International Conference of Doble Clients



External Amplifiers
Protection Suite Software
61850 TesT Software
F6TesT Software
Protection Testing Accessories

Doble Engineering Company

Doble Engineering Company