Oil Dielectric Strength BDV Tester

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Oil Dielectric Strength BDV Tester

The HM801 Insulating Oil Dielectric Strength Tester is a specialised device for rapidly determining the breakdown voltage of transformer insulating oil. Breakdown voltage serves as a fundamental indicator of an insulating oil's ability to withstand electric field strength, directly reflecting its insulating performance. The HM801 is an efficient and safe automated tester, serving as the primary safeguard for the insulation integrity of high-voltage electrical equipment such as power transformers. Through rapid and objective testing, it provides critical data for assessing the quality of insulating oil and informing equipment maintenance decisions.

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Description

Technical Parameters

Products Video

HM801 Oil BDV Tester Description Video

Product Overview & Application Scenarios

HM801-3

Product Overview

The HM801 Insulating Oil Dielectric Strength Tester is a specialized device designed for rapid determination of the breakdown voltage of transformer insulating oil. Breakdown voltage serves as the fundamental indicator of an insulating oil's ability to withstand electric field strength, directly reflecting its insulating performance. As an efficient and safe automated tester, the HM801 serves as the primary safeguard for ensuring the insulation integrity of high-voltage electrical equipment such as power transformers. Through rapid and objective testing, it provides critical data support for evaluating insulating oil quality and making equipment maintenance decisions.

Application Scenarios

1. New Oil Acceptance (Quality Control): Newly procured transformer insulating oil.

2. In-Service Oil Monitoring (Safety Inspection): Insulating oil within transformers and instrument transformers during substation operation.

3. Post-Maintenance Verification (Effectiveness Assessment): Condition of equipment oil following filtration or replacement procedures.

HM801-4

Key Features & Advantages

1. Utilizes a microprocessor to automatically perform oil circulation withstand voltage tests within the 0–80kV range (including operations such as voltage ramp-up, holding, mixing, settling, calculation, and printing).

2. Features a large LCD display with English menu prompts.

3. Simple operation. After basic operator setup, the device automatically completes dielectric strength testing for single-cup oil samples. Automatically stores 1 to 6 breakdown voltage values and cycle counts.

4. Power failure protection. Stores up to 100 test result sets and displays real-time ambient temperature and humidity.

5. Microcontroller-controlled voltage ramping ensures uniform voltage rise and precise voltage at 50Hz frequency, guaranteeing full process control.

6. Equipped with overvoltage, overcurrent, and limit protection functions to ensure operator safety.

7. Features temperature measurement display and system clock functionality.

8. Communicates with computers via standard RS232 interface.

Technical Specifications

Parameter Name	Parameter Value
Output voltage	0~80kV
Voltage distortion rate	<3%
Voltage raising speed:	0.5~5 KV/S (adjustable)
Standing time:	15min (adjustable)
Boosting interval:	5 min (adjustable)
Boosting frequency	1~9 time(s) (optional)
Dimensions	465×385×425
Booster capacity	1.5KVA
Supply voltage	AC 220V ± 10%
Measuring accuracy	±3%
Power	200 W

Additional Information

Alternative Names:

Insulating Oil Breakdown Voltage Tester;

Insulating Oil Withstand Voltage Tester;

Insulating Oil Dielectric Strength Tester;

Insulating Oil Dielectric Strength Tester;IEC 60156 / ASTM D877 Test Set;

Transformer Oil Withstand Voltage Tester;

Insulating Oil Tester;

Insulation oil breakdown tester;

Dielectric strength test set for transformer oil;

Oil dielectric strength measurement equipment;

ASTM D877/D1816 oil testers;

Portable insulation oil tester;

HV dielectric strength test kit;

Transformer oil quality analyzer.

Maintenance & FAQs

Q: What is the HM801 used for?

A: It tests the dielectric strength of insulation oil (e.g., transformer oil, capacitor oil) to check if the oil can resist high voltage without breakdown-critical for ensuring the safety of oil-filled electrical equipment (transformers, reactors).

Q: What oil types and voltage ranges does it support?

Suitable for most industrial insulation oils (mineral oil, synthetic oil).

Test voltage range: 0–80kV (meets global standards like IEC 60156, GB/T 507).

Q: How long does a single test take?

A:About 1–3 minutes per sample (depends on oil condition). The tester auto-runs the process: oil sample heating (if needed), voltage boosting, breakdown detection, and result display..

Q: Can it work in harsh on-site environments?

Yes. It resists:

Temperature: 5–40°C

Humidity: ≤85% (no condensation)

Electromagnetic interference (e.g., near substations)

Q: Why is my test result unstable?

Check 3 common issues:

Oil sample: Not filtered (contains impurities) or not dried (has moisture).

Test cup: Dirty (clean with alcohol) or not grounded properly.

Voltage supply: Unstable (use a voltage stabilizer).

Q: Does it store test data?

A: Yes. It saves up to 1,000 test records (including date, voltage, oil temperature) and can export data via USB to a computer for reports.