Doble Engineering
Founded in 1920, Doble Engineering Company ensures reliable, safe and secure power for all. We do this by providing comprehensive diagnostics and engineering expertise for the energy industry. Doble is part of the Utility Solutions Group of ESCO Technologies Inc. (NYSE: ESE) and serves customers around the globe. Doble is an ISO 9001 & ISO/IEC 17025 & 17034 certified company.
- (617) 926-4900
- 123 Felton Street
Marlborough, MA 01752
United States of America
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Product
Electronic Primary Injection Test Set
eKAM
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eKAM is the new fully automatic electronic primary injection test equipment. e KAM test system includes two portable units: one control unit with a large graphical display, that adjusts the output, and one current unit (up to 2000, 3000, 5000A). It can also perform Step and Touch tests and ground resistance tests.
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Product
Software For Protective Relay Testing
TDMS Pro
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TDMS Pro is the NEW software platform designed to efficiently run tests and manage test data of almost any kind of electromechanical and digital relay from any manufacturer.From the simplest to the most complex type, TDMS Pro, with a completely new graphic interface and advanced test functions, can be used to test all types of multifunction protection relays installed in power transmission and distribution networks, in power plants and industries. The universal test set compatible with TDMS Pro are: DRTS 66, DRTS 64, DRTS 34 and DRTS 33.
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Product
Secondary Injection Relay Test Set
T 1000 PLUS
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T1000 PLUS is a protective relay test set especially designed to give the commissioning engineers a multitasking and highly reliable testing equipment.
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Product
Step & Touch & Earth Impedance
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The kit applyed with STS 5000, STS 4000 or eKAM, allows to perform the following types of test: soil resistivity, ground grid resistance, step and touch tests and overhead lines zero sequence and mutual coupling coefficients
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Product
Primary Current Injection Test Set
T 2000
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T 2000 is a portable current transformer test set which allows to perform many different measurements such as saturation, ratio and polarity tests and CT winding resistance test. Substation maintenance and commissioning test equipment, T 2000 is extremely appreciated by electrical engineers for its high accuracy and portability.
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Product
Circuit Breaker Analyzer
CBA 1000
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CBA 1000 circuit breaker timing test equipment is a reliable and very accurate operating device for the maintenance and commissioning of circuit breakers in medium and high voltage substation. It can perform static and dynamic contact resistance measurement and it’s an accurate timing speed and motion analyzer.
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Product
Portable PD Analyzer
AQUILA
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A compact and portable Partial Discharge acquisition unit, which allows to detect and analyze partial discharge activities in all electrical assets: from power cables to transformers, rotating machines and switchgears, together with the right combination of sensors and accessories. AQUILA comes with a full range of options, ideal for field testing.
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Product
Surge Arrester Testing
SCAR 10
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This MOV- Metal Oxide Varistor test system is the perfect device to perform analysis and diagnostics on metal oxide arrestors. It is supplied with a special current clip-on transformer designed for the measurement of current leakage.
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Product
Automatic Relay Test Set
DRTS 64
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DRTS 64 is the most powerful diagnostic test set designed to perform accurate tests on protection relays, transducers, energy and power quality meters. This advanced test equipment is also thought to satisfy all the needs related to commissioning and substation maintenance. 6 Current and 4 Voltage generators simultaneously available.
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Product
For Dielectric Oil Test
Stoil Cell
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The option allows the testing of the insulation characteristics of the oil by checking if there is no contamination.
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Product
Multifunction Substation Test Set
STS 4000
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STS 4000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers, designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid.
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Product
Primary Current Injection Test Set
T 3000
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T 3000 is a primary current injection testing system designed to perform primary tests requested in substations commissioning. It allows to perform different tests and measurements on current transformers, voltage transformers, power transformers, protection relays, energy meters and transducers
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Product
Line Impedance
KIT
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The Line impedance kit is composed of two modules, STLG and STSG. The kit is meant to be used with STS 5000, STS 4000 and eKAM in order to perform Line Impedance test.
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Product
Capacitance And Tan Delta Test
Bushing Tap Adapter Kit
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Bushing Tap Adapter Kit is designed to perform Capacitance and Tan Delta tests on power transformer bushings The kit can b e used with the following ISA Test Set STS 5000 TD 5000 STS 4000 TD 5000 TDX 5000.
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Product
Compensating Reactor
RCTD
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This module is properly designed for testing Tan Delta in rotating machines with TD 5000 and allows increasing the test current and getting the maximum test voltage with high capacitive burdens















