Product Details

Mainly applicable to solid insulating materials such as: wire conduits, resins and adhesives, impregnated fiber products, mica and its products, plastic films, ceramics, glass, insulating varnish, vulcanized rubber, cable paper, insulating varnish films, hard rubber, paperboard and other insulating media in air or liquid media, measuring the breakdown strength and withstand voltage time under power frequency (48~62Hz) or corresponding DC voltage. Suitable for continuous uniform voltage rise or step-by-step voltage rise, applying AC/DC voltage to the sample until breakdown, measuring the breakdown voltage value, and calculating the breakdown strength of the sample; using the rapid voltage rise method, raising the voltage to a specified value, maintaining a certain time without breakdown, and setting this specified value as the withstand voltage value of the sample.

3. Basic functions:

Controlled by computer, the data acquisition method adopts photoelectric isolation, effectively solving the anti-interference problem during the test. The software is easy to operate, can display dynamic curves in real time, and the voltage rise rate is steplessly adjustable. The voltage rise rate can be adjusted according to your needs, with an adjustment range of 0.1KV-3KV/S, making the voltage rise truly uniform and accurate, and can accurately measure the leakage current data. It can draw test curves in real time, display test data, judge accurately, and can save, analyze, and print test data. It can also automatically identify sample breakdown and collect breakdown voltage data and leakage current, and at the moment of breakdown, the voltage quickly drops and automatically returns to zero. The software system is easy to operate, stable in performance, safe and reliable.

4. Structural features:

Adopting a vertical box structure, greatly saving laboratory floor space. The feet adopt a pulley structure for easy movement and placement, avoiding the shortcomings of horizontal equipment produced by similar manufacturers, which require an additional installation platform, occupy large space, and are inconvenient to move. This product uses a DC servo motor with a reduction mechanism, ensuring the latest requirements for extremely slow and extremely fast tests in the latest standards, allowing users to freely choose the voltage rise rate.

5. Main technical requirements:

1. Equipment input voltage: AC 100KV (compatible with ordinary laboratory power supplies);

2. Test voltage mode: AC 0--100 KV;

                  DC 0--100 KV;

3. Electrical capacity: 10KVA;

4. Test method: 0-100KV full range adjustable (using high-precision voltage sampling components);

5. Breakdown and withstand voltage test voltage rise rate:

0.1 KV/S

0.2 KV/S

0.5 KV/S

1.5 KV/S

2.0 KV/S

2.5 KV/S

3.0 KV/S (this item meets the extremely fast voltage rise test requirements in the latest standards);

6. Test modes:

           DC test: 1. Uniform voltage rise  2. Step voltage rise  3. Withstand voltage test

           AC test: 1. Uniform voltage rise  2. Step voltage rise  3. Withstand voltage test

Note: According to the standards of different industries, we can customize special test functions required by your industry standards according to user requirements.

7. The overcurrent protection device should have sufficient sensitivity to cut off the power within 0.1S when the sample breaks down.

8. Leakage current selection: 1—100 mA can be freely set by computer software.

9. This instrument adopts advanced non-contact components for uniform voltage regulation (replacing the mechanical transmission voltage rise method in obsolete products).

10. Supports short-time short-circuit test requirements.

11. One test can test 5 samples simultaneously.

12. Voltage measurement error: ≤2％.

13. Test voltage continuously adjustable: 0-100 KV

14. Withstand voltage time setting: 0-6 hours (can be continuously set through software).

15. Host dimensions: 1500mm*1200mm*1600mm (length width height).

16. Host weight: about 200KG.

17. Nine-level safety protection measures:

(1) Overvoltage protection

(2) Test overcurrent protection

(3) Test short-circuit protection

(4) Safety door opening protection

(5) Software misoperation protection

(6) Zero voltage reset protection

(7) Discharge protection after test end

(8) Independent protective grounding

(9) Electromagnetic discharge after test completion

6. Test modes:

1. Breakdown, withstand voltage or step test of insulating samples in air;

2. Breakdown, withstand voltage or step test of insulating samples in oil;

Note: According to user requirements, other test modes can be customized.

7. Test software:

1. The test software is the latest test software system developed by our company with powerful functions, simple operation, and intuitive display;

2. Using computer control through human-machine dialogue, complete the power frequency voltage breakdown and power frequency withstand voltage test of insulating media;

3. This instrument can draw real-time curves during the voltage rise breakdown process. Each test's voltage rise curve is composed of different colors. After the test, the repeatability of material test data can be compared by overlaying;

4. Can retrieve current and historical test data at any time for viewing, editing, and modifying parameters;

5. During the test, test conditions and storage paths can be modified at any time, and test results can be automatically stored;

6. During the test, you can decide at any time whether this test is valid through the software, facilitating the screening of test results;

7. Can set operation passwords to ensure dedicated machine and dedicated personnel operation, avoiding misoperation by unrelated personnel;

8. The test report format is flexible and changeable, suitable for different needs of different users;

9. Can manually select whether the curve data in a group of tests is valid;

10. Test result data can be imported into EXCEL and WORD documents for editing;

11. The overcurrent protection device has sufficient sensitivity to ensure that the power is cut off within 0.1S when the sample breaks down;

12. Durability of instrument operation: The instrument can run continuously without regular shutdown to protect the instrument;

8. Software instructions:

1. Test unit: the name of the unit that performs test and inspection on materials;

2. Sending unit: the name of the unit that sends materials for testing;

3. Test mode: select "AC test" or "DC test";

 

ZJC-50KV Plastic Voltage Breakdown Tester

1. Main uses and functions

ZJC-50KV Plastic Voltage Breakdown Tester meets GB1408.1-2006  GB1408.2-2006  GB/T1695-2005 GB/T3333  GB12656 and ASTM D149 ASTM D 876, DIN53481, UNI4291IEC

Standard requirements. Mainly applicable to solid insulating materials such as: plastics, films, resins, mica, ceramics, glass, insulating varnish and other media under power frequency voltage or DC voltage for breakdown strength and withstand voltage time testing; the instrument adopts computer control, can quickly and accurately collect, process, store, display, and print various data during the test process.

This instrument has radiation protection function. The test door of the instrument is made of transparent insulating glass with a shielding mesh in the middle. During the test, the breakdown moment will produce a large current, and at the same time, it has radiation hazards to the human body. Our company's instrument has been shielded in this regard to minimize harm to the human body.

This instrument also has a lighting function, because during the test, the light may be dim. This function can be used to make the observation during the test more obvious and provide a better test effect.

2. Equipment composition principle and safety protection:

1. The equipment mainly consists of high-voltage test transformer, contact voltage regulator, servo speed control system, acquisition system, control system, automatic discharge, etc.

2. The input of the test transformer is given by the output of the voltage regulator. At the same time, the acquisition system collects the high-voltage output in real time. The computer adjusts the speed control system that controls the rotation of the voltage regulator according to the voltage, forming a closed loop, making the voltage regulation process smoother. And it can meet the extremely slow voltage rise requirements.

3. Automatically distinguish AC and DC test processes. If a DC test is performed, after the test ends, an automatic discharge operation can be performed. During this period (when not discharged), opening the test chamber door will trigger an audible and visual alarm, warning of danger!

Safety protection:

1. Overcurrent protection:

      1.1 Low-voltage side overcurrent protection, protecting the safe operation of the high-voltage transformer

      1.2 High-voltage side overcurrent protection, protecting the electrode surface from electric spark corrosion

      1.3 Exceeding the preset leakage current, cut off the high-voltage output

2. High-voltage power-off protection:

      1.1 Over-range automatically cuts off high-voltage output

      1.2 During the experiment, the high-voltage output can be manually shut down

      1.3 Voltage drop exceeds preset, cut off high-voltage output

3. Output zero-point protection:

      1.1 Before the experiment starts, if the high-voltage output is not at zero, a prompt is given

      1.2 If the high-voltage output is not at zero, force return to zero

4. Short-circuit protection:

      1.1 High-voltage output short circuit, automatically cut off output

      1.2 Low-voltage input short circuit, automatically power off

5. Safety door protection:

      1.1 Inadvertently opening the chamber door during the experiment, automatically cut off output

      1.2 When the test chamber door is open, the test cannot be started

      1.3 After the experiment ends, opening the chamber door cuts off the high-voltage output

6. Software protection:

      Before each experiment starts, confirmation is required. Otherwise, a pop-up window appears

      1.1 The high-voltage ready switch is pressed, and the high-voltage indicator light lights up

      1.2 The test chamber door is closed

      1.3 The voltage regulator is reset (high-voltage output is zero)

7. Discharge protection:

      1.1 After DC test, when opening the chamber door, an audible and visual alarm is triggered, forcing discharge of the equalizing ball

8. Leakage protection:

      1.1 Independent grounding protection

      1.2 Leakage protection switch

Stepless voltage regulation function: With the continuous emergence of new materials, the requirements for their insulation performance testing are also increasing. Early domestic testing instruments could only achieve a few fixed selectable voltage rise speeds, which could not well meet the test requirements. After introducing the concept of stepless voltage regulation, the voltage rise rate can be manually set within a certain range, which can better adapt to user needs.

3. Main technical requirements:

Input voltage: AC 220 V   

Output voltage: AC  0--50 kV  DC 0-50 kV

Voltage rise mode: continuous voltage rise, withstand voltage

Electrical capacity: 3KVA

High voltage grading: 0--50kV (full range without gears)

Breakdown voltage: 0--50kV

Voltage rise rate: (100V-3000V/s)

Voltage measurement accuracy (10%--100%FS): ≤ 1％

Test voltage: 0-20 kV continuously adjustable

Test method: AC test   DC test  (dual use)

Voltage rise mode: DC test: 1. Uniform voltage rise  2. Gradient voltage rise  3. Withstand voltage test AC test: 1. Uniform voltage rise  2. Gradient voltage rise  3. Withstand voltage test

Two stop criteria: 1. Voltage stop  2. Current stop

Test modes: 1. Test insulating samples in air 2. Test insulating samples in oil

Test medium: 1. Air      2. Test oil

Overcurrent protection device: cut off the power within 0.1S when the sample breaks down.

Leakage current selection: [0-50mA] can be freely set (determined by the capacity of the test transformer)

Current can be collected: up to mA level

Overcurrent protection device: cut off the power within 0.01S when the sample breaks down.

Operating environment: The instrument can operate stably at a temperature of 15 to 30°C and a relative humidity of 0 to 85%.

Test environment: temperature between 15 and 25 degrees, relative humidity between 60% and 70%.

Power supply: The instrument operates on 220V±10% single-phase AC voltage and 50Hz



Note: The above information and technical parameters are compiled and released by Yangzhou Daru Electrical Co., Ltd.