Insulating Oil Breakdown Voltage Tester

Insulating Oil Breakdown Voltage Tester

This HM801 100kV of Insulating Oil Breakdown Voltage Tester for insulating oil is a high accuracy and full digital industrial instrument developed by all the scientific research and technical personnel of our company, according to the relevant standards and regulations of insulating oil testing, giving full play to their own advantages, after many field tests and long-term unremitting efforts. The machine is easy to operate and beautiful in shape. Due to the use of automatic digital microcomputer control, so the measurement accuracy is high, anti-interference ability is strong, safe and reliable.
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Description
Technical Parameters

Product Overview & Applications

 

This HM801 100kV of Insulating Oil Breakdown Voltage Tester for insulating oil is a high accuracy and full digital industrial instrument developed by all the scientific research and technical personnel of our company, according to the relevant standards and regulations of insulating oil testing, giving full play to their own advantages, after many field tests and long-term unremitting efforts. The machine is easy to operate and beautiful in shape. Due to the use of automatic digital microcomputer control, so the measurement accuracy is high, anti-interference ability is strong, safe and reliable.

 

Application:

1.Power Transformer Manufacturing Quality Control:Final testing of insulating oil before filling new power transformers

2.Utility Substation Maintenance Programs:Routine testing of in-service transformer oil

3.Circuit Breaker and Switchgear Maintenance:Assessing oil in oil-filled circuit breakers

4.Industrial Plant Electrical Asset Management:Testing oil in critical process transformers (steel mills, data centers)

5.Cable and Capacitor Manufacturing:Quality control of insulating oil for high-voltage cables and capacitors

6.Renewable Energy Facilities:Maintaining transformers in wind and solar farms

7. Railway and Traction Power Systems:Testing oil in railway substation transformers

8.Oil Regeneration and Recycling Facilities:Quality verification of processed/reclaimed oil

9.Research and Development Laboratories:Testing new oil formulations and additives.

Features & Advantages

 

1. The instrument is controlled by a large capacity single chip microcomputer, which is stable and reliable;

2. The instrument is equipped with temperature, humidity and clock display functions, and can be customized for infrared oil temperature measurement.

3. The wide range watchdog circuit is set in the instrument to prevent the crash;

4. A variety of standard options. The instrument program is equipped with GB / t507-1986, GB / t507-2002, dl429.9, iec156 and self programming operation, which can adapt to a variety of choices of different users;

5. The oil cup of the instrument is made of special glass and high polymer materials, which are processed finely to prevent oil leakage and corrosion;

6. The unique high-voltage sampling design of the instrument allows the test value to enter the A / D converter directly, avoids the error caused in the analog circuit, and makes the measurement result more accurate;

7. The instrument has over-current, over-voltage, short-circuit and other protection functions, and has strong anti-interference ability and good electromagnetic compatibility;

8. Can switch between Chinese and English at will to meet the needs of any customer;

9. 232 The data transfer.

 

Applicable Conditions

 

1. Environmental Conditions

Temperature Range:10°C to 40°C (operating)

Relative Humidity:<85% RH (non-condensing)

Altitude:<2000 meters above sea level

Environment:

Clean, dry, dust-free indoor laboratory

Stable workbench free from vibration

Avoid strong electromagnetic interference

No corrosive gases or explosive atmosphere

 

Additional Information

 

Feature:

The instrument is equipped with temperature,humidity and clock display functions, and canbe customized for infrared oil temperaturemeasurement.

The oil cup of the instrument is madeof special glass and high polymermaterials, which are processed finelyto prevent oil leakage and corrosion;

The instrument has over-current, over-voltage.short-circuit and other protection functions, andhas strong anti-interference ability and goodelectromagnetic compatibility;

 

Included Accessories:

1. Main Test Unit Components

HM801 Mainframe×1

High-Voltage Generator(100kV capacity)

Digital Control Panelwith display

Integrated Test Cell Chamber×1

 

2. Electrode System and Test Cells

Standard Test Vessel(500ml capacity) ×2

Spherical Electrodes(36mm diameter, brass/stainless steel) ×1 set

Electrode Gap Adjustment Tool×1

Spare Electrodes×1 pair

 

Maintenance & FAQs

 

Q: What standards does the HM801 comply with?

A: It meets international standards including:

IEC 60156– Insulating liquids – Determination of the breakdown voltage at power frequency

ASTM D877& ASTM D1816– Standard test methods for dielectric breakdown voltage

ISO/IEC 17025– For calibration and testing laboratories

Q: What types of oils can be tested?

A: It is designed for:

Mineral insulating oils(most common)

Synthetic esters(with configuration adjustments)

Vegetable-based insulating oils

Silicone oils(check compatibility)

Q: What is the testing procedure?

A:Standard procedure involves:

Sample Preparation– Filtering, degassing, and temperature stabilization

Electrode Setup– Setting gap to 2.5mm per IEC 60156

Testing– Applying rising voltage at 2 kV/s until breakdown

Averaging– Conducting 6 tests, discarding the first, averaging remaining 5

Q: What is a "good" breakdown voltage value?

A:Typical acceptable values:

New oil:>30 kV (IEC 60156)

In-service oil:>25-28 kV (maintenance threshold)

Action required:<20-25 kV (indicates need for filtration/replacement)

Q:How often should insulating oil be tested?

A:Recommended frequencies:

New oil:Before filling equipment

In-service oil:Annually for critical assets; every 2-3 years for others

After events:Following faults, maintenance, or visible contamination

 

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Specification
1
Booster capacity
1.5 kVA
2
Step up speed
0.5kv/s-5.0kv/s (increasing every 0.5) 10 gears optionalError 0.2kv/s
3
Output voltage
0-100 kV (optional)
4
Voltage accuracy
2% reading + 2 words
5
Power distortion rate
< 1%
6
Electrode gap
standard 2.5mm
7
Test times
6 times (1-9 times optional)
8
Static release time
900s (0-9000 s optional)
9
Interval rest time
300s (0-900s optional)
10
Mixing time
15s (0-250s optional)
11
Overall dimension
410mm × 380mm × 370mm