Doble Test Equipment Repair

Power factor / tan delta insulation analyser — the long-standing industry reference set.

12 kV insulation power factor test set for field transformer diagnostics.

Sweep frequency response analyser (SFRA) for winding deformation detection.

Modern high-voltage asset analyser — power factor, capacitance and dielectric response.

Tan delta / capacitance test set for bushings, CTs and windings.

Tan delta and capacitance test set with extended dielectric frequency response.

Capacitance calibrator module for verifying tan delta measurement accuracy.

High-current boosters extending winding resistance and injection capability.

DC current booster for winding resistance measurement on large windings.

Multifunction substation test set — ratio, resistance, tan delta and more.

Flagship multifunction substation test system for transformer and CT/VT diagnostics.

Primary current injection test set for substation commissioning.

High-output primary current injection test set.

Switching module automating three-phase transformer test connections.

Extended switching module for automated multi-tap transformer testing.

Transformer demagnetiser — removes residual core magnetism after DC testing.

Dielectric test cell for insulating oil breakdown measurement.

Automatic 40 Vac single-phase transformer turns ratio tester.

Single-phase turns ratio tester with AC or internal battery operation.

Automatic 100 Vac three-phase turns ratio tester with LTC control.

Automatic 100 Vac three-phase transformer turns ratio test set.

Automatic 250 Vac three-phase turns ratio test set with LTC control.

Three-phase 250 Vac turns ratio set with LTC control, AC or battery powered.

Automatic 25 Adc winding resistance test set with LTC test and auto discharge.

Automatic 40 Adc winding resistance test set with LTC test and auto discharge.

Automatic 25 Adc three-phase winding resistance test set with LTC test.

Automatic 40 Adc three-phase winding resistance test set with LTC test.

Test switch box — central hub connecting winding resistance and turns ratio meters.

Capacitance and tan delta test accessory for bushing test taps.

Sweep frequency response analysis and comparison software.

Measurement cable sets and verification cells for SFRA testing.

Leads, guards and adapters extending M-Series test capability.

Doble Universal Controller for automated apparatus test sequencing.

Secure controller for remote and automated apparatus testing.

Circuit breaker timing and travel analyser for distribution breakers.

Multi-channel circuit breaker analyser for transmission-class breakers.

Advanced circuit breaker analyser, also used for GIS breaker testing.

Programmable power supply units for breaker coil and motor testing.

Programmable DC power supply for circuit breaker control circuit testing.

Digital circuit breaker timer for basic timing verification.

Advanced digital circuit breaker analyser with travel and timing channels.

Circuit breaker analyser with integral 200 A contact resistance source.

Digital circuit breaker analyser for timing and motion measurement.

Digital circuit breaker analyser — timing, travel and coil current.

Advanced digital circuit breaker analyser with expanded channel count.

250 A moulded case circuit breaker tester for LV breaker trip verification.

75 kVdc vacuum bottle tester for vacuum interrupter integrity checks.

75 kVdc vacuum bottle tester with integral printer and keypad.

60 kV AC vacuum interrupter test set.

AC vacuum interrupter test set for MV switchgear maintenance.

Clamps, leads and adapters for TDR-series breaker test instruments.

Interface adapter connecting motion transducers to breaker analysers.

Adapter for resistive travel transducers on breaker mechanisms.

Digital rotary motion transducer for bracket or adapter mounting.

Digital rotary motion transducer with flex arm and magnet mount.

Linear travel transducers for breaker contact motion measurement.

Expert diagnostic system for circuit breaker condition assessment.

Breaker monitoring data visualisation and management software.

1 mA – 10 A micro-ohmmeter for low-current resistance measurement.

5 A – 100 A micro-ohmmeter for contact and joint resistance.

5 A – 200 A micro-ohmmeter for high-current contact resistance testing.

Compact 10 A true DC micro-ohmmeter with AC or battery power.

Lightweight high-current true DC contact resistance test set.

Current and voltage transformer test set for ratio, polarity and burden.

Fully automatic electronic primary injection test system.

Current booster expanding primary injection output.

Automated 2 kV CT test set with insulation resistance and burden tests.

Automated 2 kV current transformer test set for saturation and ratio.

Protection and apparatus diagnostic software suite.

6-current / 6-voltage automated protective relay test set.

6-current / 6-voltage relay test set with IEC 61850 sampled values interface.

Four-module configurable power system simulator with IEC 61850 support.

Seven-module configurable relay test system with IEC 61850 support.

Digital network analyser for IEC 61850 substation network traffic.

12-current or 6-current + 6-voltage amplifier expansion units.

Compact digital relay test system for field relay verification.

3-current / 3-voltage relay test set with IEC 61850 interface.

3-current / 4-voltage relay test set with IEC 61850 interface.

6-current / 4-voltage relay test set with IEC 61850 interface.

6-current / 6-voltage relay test set with IEC 61850 interface.

2-current / 4-voltage relay test set with manual interface.

6-current / 4-voltage relay test system with manual interface.

Single-phase 2-current / 1-voltage relay test set.

Single-phase 1-current / 1-voltage relay test set.

Primary current injection system for full CT-to-relay loop testing.

Leads, clamps and interface boxes for relay test sets.

Factory customisation options for power system simulators.

Protection asset and test results database platform.

Protection system coordination validation toolset.

Test and data management software for protective relay testing.

Test and data management software for relay test records.

Universal protection testing system software.

F-series test and management software suite.

Simulates, monitors and tests IEC 61850 applications.

Compact insulation resistance tester for routine megger testing.

Multi-function insulation and hipot tester with simple setup.

Multi-function high-potential tester with straightforward operation.

15 kV DC high-potential tester with integral megohmmeter.

10 kV AC / 25 kV DC high-potential tester with megohmmeter.

5 kV AC / 6 kV DC high-potential tester with megohmmeter.

AC dielectric and insulation testing up to 15 kV.

AC dielectric testing across field and lab applications.

Portable DC high-potential test sets for field use.

Combined AC and DC dielectric test system.

Modular DC hipot testing of switchgear, cables and motors.

UHV DC dielectric test systems and supplies.

Aerial lift, elevated platform and insulated boom dielectric testing.

Universal hand-held partial discharge surveyor.

Universal PD and EMI analyser for field surveys.

Compact and portable partial discharge analyser.

Ultra-portable PD assessment instrument.

Radio influence voltage measurement system.

Partial discharge detector for laboratory and field use.

Spectrum analyser, PD detector and RIV meter for high-noise environments.

Partial discharge monitoring infrastructure hub.

Continuous PD monitoring unit for in-service assets.

Medium-voltage partial discharge monitoring instrument.

Four-channel PD acquisition instrument for MV assets.

Switchgear partial discharge monitoring system.

Universal partial discharge calibrator.

High-performance PD charge injection calibrator.

Partial discharge pulse simulator for training and verification.

Capacitive coupler for partial discharge measurement.

Pulsed electro-acoustic space charge measurement system.

Three-channel PD signal coupling and derivation device.

Flexible magnetic coupler for PD signal pickup.

High-frequency current transformer for PD detection.

Clamp-style high-frequency current transformer.

Bushing tap adapter for PD sensing.

Universal bushing tap adapter kit for PD sensors.

Transient earth voltage antenna for switchgear PD detection.

TEM-mode antenna for partial discharge sensing.

UHF spiral PD antenna for GIS applications.

UHF spiral PD antenna for transformer tanks.

UHF horn antenna for high-sensitivity PD detection.

Ultrasonic corona detector for airborne discharge location.

Impulsive test synchronisation module.

Notch low-frequency amplifier for PD signal conditioning.

Permanent power supply for continuous PD monitoring installations.

PD coupling capacitors for rotating machine testing.

PD-free coupling capacitors in multiple voltage ratings.

PD-free capacitors injecting known charge while energised.

High-precision compressed-gas reference capacitors.

Sensors, cables and mounts for PD test instruments.

Partial discharge analysis software.

Data management and visualisation for PD and EMI measurements.

Online hydrogen and moisture monitor for transformer oil.

Online monitor for hydrogen, moisture and carbon monoxide.

Multi-gas monitor detecting five fault gases plus moisture.

Nine-gas DGA and moisture monitor for early fault detection.

High-accuracy, low-maintenance nine-gas DGA monitor.

Solid-state hydrogen sensor detecting incipient electrical faults.

Hydrogen and moisture online transformer monitor.

All-in-one monitor integrating bushings, PD and I/O.

Networked RTU aggregating monitor data for SCADA integration.

Sensors, valves and integration components for Calisto monitors.

Real-time HV/MV cable condition monitoring package.

Transformer condition monitoring and analytics platform.

Insulation and bushing health monitoring module.

Continuous partial discharge monitoring module.

Multi-function condition monitoring data recorder.

Communication gateway and analytics for the doblePRIME ecosystem.

SF6 gas density and condition monitor for HV GIS.

Overhead transmission line monitoring system.

Environmental condition monitoring for MV switchgear.

Portable micro gas chromatograph for on-site dissolved gas analysis.

Laboratory DGA package built around the Myrkos analyser.

Breakdown voltage testing of insulating liquids and oils.

Calibrated cells for liquid and oil dielectric breakdown testing.

Calibration cell for liquid dielectric test set verification.

ASTM D149 dielectric strength testing of solid insulating materials.

Accelerated electrical-stress ageing of dielectric materials.

Very low frequency cable hipot, burn and fault location supply.

Tracing current transmitter test set for cable identification.

Three-in-one combination cable tracing and testing unit.

Determines whether a feeder has shorts or grounds applied.

Moving-coil galvanometer for sheath fault current measurement.

Telescoping stick for placing small or large pickup coils.

Cable identification tester for metallic cable sheaths.

Protective spark gap used with the ammeter clear test set.

In-service testing of protective ground jumpers.

Line impedance measurement kit for ground jumper testing.

Quality-assurance test systems for multi-conductor cable.

Temporary terminations for shielded HV cable testing.

Low-voltage / high-current supplies for cable heat cycling tests.

Compensating reactor for rotating machine tan delta testing.

Stator core loss measurement for large machines.

AC/DC motor testing up to 1,000 HP.

AC/DC motor testing up to 5,000 HP.

High-capacity motor testing up to 50,000 HP.

Separate field, armature and winding reactance test sources.

Torque, speed and temperature module for motor test systems.

Metal oxide surge arrester test set.

Leakage current analyser for surge arrester condition assessment.

Substation battery test system for capacity and impedance testing.

External load unit extending BTS 200 discharge capacity.

Laboratory dielectric breakdown and strength measurement.

Tank-type resonant testing of cables, capacitors and machines.

High-voltage onsite resonant testing for cables and capacitors.

Onsite gas-insulated switchgear resonant testing.

Tank-type variable inductance resonant test system.

High-power variable inductance resonant test system.

High-current testing of breakers, relays and current transformers.

Testing LV and metal-clad direct-acting AC circuit breakers.

Verifies automatic circuit recloser operation under simulated faults.

High-volume transformer factory test stations.

125-375 kVA single-phase transformer test systems.

Utility distribution and power transformer factory testing.

AC/DC high-voltage measurement instruments.

On-site calibration dividers for UHV measurement systems.

Outer copper coil variable transformers for test supplies.

Continuously adjustable output voltage transformers.

Multi-purpose regulated power sources for industrial test rigs.

Portable supply for energising circuits and components.

Variable AC/DC power supply for field test applications.

Dielectric testing of switch sticks up to 14 ft or 21 ft.

AC, DC or combined AC/DC proof testing of gloves and sleeves.

Class 0 to Class 4 rubber and EPDM blanket proof testing.

Proof testing of 4 ft to 6 ft insulating hose and hoods.

Portable single-item rubber goods proof test fixture.

Cleaning and drying equipment for insulating rubber goods.

Central data store for Doble test equipment and oil laboratory results.

Doble Test Assistant — upload, download and benchmark test data.

Data governance services standardising asset test information.

Diagnostic software evaluating liquid and solid insulation laboratory tests.

Asset risk and analytics platform for utility fleets.

Asset risk management system for substation equipment.

Field force automation and work management platform.

Condition assessment and fleet management consulting service.

NERC CIP patch management compliance solution.

Transient cyber asset compliance programme.

Utility cybersecurity and regulatory compliance consulting.

Electromagnetic pulse resilience assessment and hardening.