Power Transformer Testing products
Doble
ATRT-03 S2
The Vanguard Instruments ATRT-03 S2 is the third generation, microprocessor-based, automatic, three phase, transformer turns-ratio tester. This light weight, rugged, portable unit is designed for transformer testing at utility power substations.
Doble
ATRT-01B S3
The ATRT-01B S3 is Vanguard’s fourth generation, micro-processor based, single phase, automatic transformer turns-ratio tester. The ATRT-01B S3 uses the IEEE C57.12.90 measuring method to determine the transformer turns-ratio.
Doble
ATRT-01 S3
The ATRT-01 S3 is Vanguard’s fourth generation, micro-processor based, single phase, automatic transformer turns-ratio tester. The ATRT-01 S3 uses the IEEE C57.12.90 measuring method to determine the transformer turns-ratio.
Doble
SFRA Accessories
Choose what best fits your testing program and ensure testing accuracy Doble SFRA Accessories include two options for measurement cables, as well as a performance verification cell to help you confirm that your M5400 Sweep Frequency Response Analyzer and leads are working properly.
Doble
SFRA Software v6
Doble Sweep Frequency Response Analyzer (SFRA) Software v6 is our new and improved SFRA application for Doble’s Sweep Frequency Response Analysis solutions for transformer diagnostics.
Doble
M5500
The M5500 Sweep Frequency Response Analyzer is our newest generation of SFRA diagnostic instrument. With incredibly fast sweep speed and expanded dynamic range, you can use the Doble M5500 test set to investigate mechanical integrity of transformers, reactors and other equipment with windings.
Doble
Telescoping Stick for Pickup Coil, GALV-STK
Used in man holes or other hard to reach location.
Doble
STCS PLUS
Only two multipolar cables are needed, one for the primary side and one for the secondary side, each placed on its own cable reel in order to have a unique and complete connection to the power transformer.
Doble
STDE
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.
Doble
Stoil Cell
The option allows testing that the oil characteristics of isolation are met and that there is no contamination. The option is made of a suitable glass container with electrodes; the electrodes are connected to the option TD 5000 for the test execution.
Doble
STCS
The external module STCS allows performing automatically the following PT tests: ratio per tap; winding resistance; OLTC dynamic test. The connection to the transformer under test, to STS and to the measurement taps is performed just once
Doble
T 2000
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