ndb Technologies products
Substation Maintenance
ndb Technologies - Real Three Phase Automatic Ratio Tester For Power Transformer
The ART-3D™ series of ratio meters are high precision instruments, designed to measure turn ratios, phase displacements, excitation currents of single phase and three phase power, distribution and instrument transformers in conformity to the IEEE C57.12.90 & IEC 60076.
Micro-Ohmmeters
ndb Technologies - High Precision Digital 1A Micro-ohmmeter
The DRM-1A™ is a compact and portable micro-ohmmeter specifically designed for measuring very low resistance values ranging from 1 micro-ohm to 200 ohms. This makes it highly suitable for both fieldwork and laboratory applications. Its lightweight nature is coupled with shock resistance, allowing it to sustain harsh environments while maintaining accuracy. The micro-ohmmeter is equipped with a backlit LCD display, making it operable in various lighting conditions. It injects a weak current, which is vital for measurements requiring minimal contact resistance. A range of accessories enhances its applicability, including probes for exothermic welding tests and measuring on small surfaces. Optional devices include Kelvin clamps, each type tailored for different resistance needs. Its versatility is further showcased by optional accessories such as reference resistors and grounding testers, readying the instrument for diverse testing scenarios.Distribution Equipment
NDB Technologies - Distribution Transformer Tester
The NDB-DOC-3 is a specialized testing instrument designed for assessing distribution transformers within the range of 5 kVA to 3 MVA. This device can accurately diagnose the existence of short or open circuits in both the primary and secondary windings of transformers, a critical aspect of ensuring transformer reliability and safety. Its design allows usage without the need to disconnect the secondary windings, thus optimizing operational time. This functionality is particularly beneficial in maintaining transformers in energised conditions, thereby avoiding unnecessary downtime. The test results can pinpoint issues that may lead to transformer failures, making it an invaluable tool for electrical engineers and technicians working in the maintenance of electrical distribution networks. With a robust build, it comes with various accessories including replacement test leads and transportation cases, enhancing its usability and protection during transit.