The Motwane Manufacturing Company Private Limited

Product/Service Description

The Motwane 5kV Digital Insulation Tester is a state-of-the-art, microprocessor-based instrument designed for accurate insulation resistance testing of electrical equipment such as transformers, cables, motors, switchgears, and industrial installations. With selectable test voltages (250V, 500V, 1000V, 2500V, 5000V), it measures insulation resistance up to 250GΩ, ensuring suitability for a range of industrial diagnostic and routine maintenance tasks. Three programmable timers and multiple automated diagnostic modes—IR, PI, DAR, DD, SV, and BDV—enable comprehensive testing and trending for preventive maintenance.

Key features include a large backlit LCD display for easy visibility, auto power off, inbuilt memory to store up to 1000 test results, and both battery and mains operation for reliable use on-site or in the lab. Its rugged design, GUARD terminal to eliminate surface leakage, and IP54-rated safety make it ideal for harsh working environments.

1. Insulation: It acts as a dielectric medium, preventing electrical arcing and short circuits between live components.

2. Coolant: It dissipates the heat generated by the equipment.

Over time, this oil can become contaminated with moisture, dirt, and other impurities. This contamination reduces the oil's dielectric strength, or its ability to withstand electrical stress. A low breakdown voltage indicates that the oil's insulating properties have degraded, which can lead to a catastrophic failure of the equipment due to a flashover or internal arcing.

Specific Equipment and Applications:

Motwane's Oil BDV testers are used to test the oil in a variety of electrical equipment, including:

• Power and Distribution Transformers: This is the most common application. Regular BDV testing of transformer oil is essential for ensuring the reliable and safe operation of transformers.

• Instrument Transformers (CT & PT): Current and Potential Transformers also use insulating oil and require periodic testing.

• Switchgear: Oil-filled switchgear uses insulating oil for both arc quenching and insulation.

• Capacitors: Some high-voltage capacitors are filled with insulating oil.

• Bushings: These are insulating devices that allow an electrical conductor to pass safely through a barrier. Some bushings are oil-filled and require testing.

Key Features and Standards:

Motwane's Oil BDV kits, such as the OTS series, are designed to meet various national and international standards for conducting these tests, including:

• IEC 60156

• IS 6792

• ASTM D877

• ASTM D1816

These testers often come with advanced features that enhance their application, such as:

 

• Fully automatic operation: Microprocessor-based kits can run pre-programmed test sequences as per international standards.

• Customizable tests: Users can define their own test sequences.

• Data storage and reporting: Internal memory and built-in printers allow for easy data logging and on-site report generation.

• Safety features: Interlocks and protections (e.g., zero start, safety door, earth open) ensure safe operation.

• Connectivity: Some models have Bluetooth connectivity for use with mobile apps and cloud-based data platforms, enabling trend analysis and fleet monitoring of equipment.

The MVLF Series combines modern advanced digital variablefrequency technology and microcomputer control together,therefore, it can realize the fully automatic voltage boost, stepdown, measurement and protection as well as the manualintervention in the process of automatic voltage boost.The full electronic design ensures the small size and light weight.The big LCD screen ensures the clear and visual display and candisplay the output wave form. The printer outputs test reports.