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
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
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
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Product
Current Booster
BUX
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The current boosters allow performing tests up to 2000A, 3000A and 5000A. The option is made of a module, which incorporates a power transformer, which generates a low-voltage, high current output and a metering CT, which measures the output current and sends the metering to eKAM.
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Product
Three Phase Relay Test Set
RELTEST 1000
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RELTEST 1000 is a multifunctional relay test set, especially designed for distribution, smart grid and renewable energy plants.
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Product
STDETransformer Demagnetizer
STDE
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This option allows neutralizing the residual magnetization of the power transformer core after the winding resistance test. The principle of the option is to apply a constant current of alternate polarities to the transformer winding, as per the IEEE 0062 1995 standard.
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Product
Calibrator Module
CAP CAL
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The purpose of CAP-CAL is to check the correctness of Tan Delta and Capacitance of TD 5000 and TDX 5000. The calibrator includes an extremely high accuracy high voltage capacitor, which comes with a certificate issued by ISA - Altanova Group lab.






