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Products Video
HM801 Transformer Oil BDV Tester Introduction Video
Product Overview & Applications
The HM801 is an automated device specifically designed for rapid and accurate measurement of the breakdown voltage of transformer insulating oil. Breakdown voltage serves as a critical indicator for evaluating the electrical insulation performance of insulating oil. It is measured by observing the voltage at which an arc forms between two electrodes immersed in the oil (maintaining a specific gap between them). A lower breakdown voltage value indicates the presence of moisture and conductive substances in the oil.
Application:
1.Power Grid (Substations & Power Plants)
Tests oil in transformers (e.g., 110kV/220kV power transformers) and oil-immersed reactors.
Used during new transformer installation (to verify oil quality) and regular maintenance (to check if oil degrades over time, e.g., due to moisture or impurities).
2.Electrical Equipment Manufacturing
Factories making transformers, oil-immersed capacitors, or voltage regulators use BDV testers to quality-check the transformer oil before filling it into products.
3.Renewable Energy (Wind & Solar Power)
Wind turbines and solar power stations use oil-immersed transformers to step up voltage for grid supply.
4.Railway & Metro Electrical Systems
Railway traction substations (powering trains) and metro electrical systems use oil-filled transformers.
5.Industrial Factories (Heavy Industry)
Factories (steel, chemical, mining) use large transformers to power heavy machinery.
6.Transformer Oil Recycling & Supply
Companies that recycle used transformer oil or supply new oil use BDV testers to confirm oil quality.
product Parameters
| 1. Output voltage | 0 ~ 80kv(100KV need special design) |
| 2. Booster capacity | 1.5kVA |
| 3. Booster speed | 2.0kv/s, 3.0kv/s, optional Poor miss:0.2kV/s |
| 4. Power distortion factor | <1% |
| 5. Display mode | screen LCD character display |
| 6.The electrode spacing | Standard 2.5 mm |
| 7. Overall dimensions | 390 mm wide;380 mm high |
| 8. Instrument weight | 26 kg |
Diagram of operation steps
1. Plug the power cord, turn on the power switch, and LCD screen displays the boot page (figure 1)
Figure 1. On the page
2. Under the page of figure 1, press the set key to enter the next level page (figure 2).
Figure 2. Choose the child pages
3. In figure 2 page, press the select key to move the cursor) GB1986, press the ok button to enter national standard 1986 set child pages (figure 3).
Figure 3. GB1986 child pages
Under the page of figure 3, the stop - rise voltage is set by + or - key, and the default value is 80 kV, and the range of optional range is 10 kV ~ 80 kV (the gear increment of 10 kV).After selecting, press the confirmation key to return the boot page and press the start button to test.
If there is no reliable grounding, instrument displays grounding, please!And send out alarm.Should turn off the power at this moment, good earthed again after operation;
Note: Figure 3 page selection key is reserved for multi-cup selections!
4. In figure 2 page, press the select key to move the cursor) GB2002, press the ok button to enter national standard 2002 set child pages (figure 4).
Figure 4. GB2002 child pages
In figure 4 pages, press the + or - button set ting up voltage, its default value is 80 kV, optional scope of 10 kV ~ 80 kV (gear increment 10 kV).Choose good after press the confirmation key to return to boot page, press the start key for testing.
If there is no reliable grounding, instrument displays grounding, please!And send out alarm.Should turn off the power at this moment, good earthed again after operation;
Note: Figure 4 page selection key is reserved for multi-cup selections!
Maintenance & FAQs
The HM801 is an automatic device specifically designed to quickly and accurately measure the breakdown voltage of transformer insulation oil. Breakdown voltage is an important indicator for evaluating the electrical insulation resistance of insulation oil.
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