Doble
LCM500
The Doble LCM500 Leakage Current Monitor can measure condition while a surge arrester is still in service, measuring the quality of the metal oxide blocks and helping manage the risk of failure. A surge arrester may be inexpensive, but it has an important role in protecting your transformers.
Doble
SCAR 10 Surge Arrester Testing
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.
Doble
UPS S2
The Vanguard Universal Power Supply Series 2 (UPS-S2) is designed and produced to meet a utility company’s substation needs for an independent AC/DC power source. Both the AC and DC Voltage sources are capable of supplying 10 amperes continuously.
Doble
Portable Variable Voltage Power Supply
Testing Applications Both the voltage and current output levels can be simultaneously read and monitored with the highly accurate meters. The separate output terminals for both AC and DC voltage provide convenient hookup configurations depending on the type of component being tested.
Doble
Insulation Analysis Accessories
Customize your M-Series equipment with Insulation Analysis Accessories Doble offers a series of insulation analysis accessories to complement your M-Series asset analyzers.
Doble
TSB
The TSB, or Trip Saver Box, is best suited for those situations where a bucket truck is required to connect test cables to transformer bushings for performing Winding resistance and transformer ratio tests.
Doble
TRM-403
The TRM-403 is a three phase transformer winding resistance meter that allow the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase.
Doble
TRM-203
The TRM-203 is a three phase transformer winding resistance meter that allows the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase.
Doble
TRM-40
The TRM-40 is Vanguard Instruments’ third generation transformer winding resistance meter. The TRM-40 is designed specifically to measure DC resistance values of transformer windings, rotating machine windings, or any dc resistance of an inductive device.
Doble
TRM-20
The TRM-20 is Vanguard Instruments’ third generation transformer winding resistance meter. The TRM-20 is designed specifically to measure DC resistance values of transformer windings, rotating machine windings, or any dc resistance of an inductive device.
Doble
TRF-250 A
The TRF-250A is the battery-powered version of the TRF-250. Its battery offers approximately 3 hours of continuous use. The TRF-250A features a built-in charger that allows the unit to be used while charging.
Doble
TRF-250
The TRF-250 determines the turns ratio of the transformer under test using the IEEE C57.12.90 measurement method. The turns-ratio range is from 0.8 to 50,000 to 1. Transformer turns ratio, excitation current, and winding polarity are displayed on the built-in 128 x 64 pixels graphic LCD screen.