What is an insulating oil withstand voltage tester ? 10

What is an insulating oil withstand voltage tester ?

Key features: EDDIJJ-IIB type insulating oil dielectric strength tester is developed according to the national standard GB-86 "insulating oil dielectric strength determination method", the instrument is composed of liquid crystal display, button preset, computer in strict accordance with the preset parameters to execute the program.

The operation is simple, and it is equipped with an automatic detection function, and it automatically enters the reset state when the power is turned on to perform the regulator back to zero.

According to the user's needs, the number of tests, stirring and standing time, and the voice-activated light control can be changed to remind continuous printing and non-printing.

This instrument uses automatic magnon stirring to eliminate the unevenness and bubbles of the oil sample.

Micro TPU A panel printer is used to print out automatically.

Technical Indicators. Input voltage: AC220V 10% Output voltage: AC0 80KV

Boost rate: 2kV s

Measurement accuracy: level.

Number of times: 1 9 times.

Temperature: 5-40

Humidity: 90%.

Oil-chemical analysis and testing equipment.

EDWS-3 Trace Moisture Analyzer.

EDWS-5 Trace Moisture Analyzer.

EDWS-8 Trace Moisture Analyzer.

EDBSD-2 Closed Flash Point Tester.

EDBSD-07 Closed Flash Point Tester.

EDKSD-3 Open Flash Point Tester.

EDKSD-07 Automatic Detector for Open Flash Point.

EDZL-2 automatic tensiometer.

EDZL-3 automatic tensiometer.

EDSZ-3 automatic tester for acid number of petroleum products.

EDPH-07 water-soluble acid tester.

EDND-2 Petroleum Product Kinematic Viscosity Tester.

EDND-3 Petroleum Product Kinematic Viscosity Tester.

EDZND-8 Freezing Point Pour Point Tester.

EDZND-10 automatic freezing point tester.

EDWS-10 oil moisture analyzer.

EDSKD-3 insulating oil volume resistivity automatic testerEDDZ-3 multi-function oscillator.

EDDW-1 Low Temperature Stabilized Experimenter.

EDXS-2 liquid phase corrosion tester.

EDXS-3 liquid phase corrosion tester.

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EDPM-07 foam characteristics tester.

EDRD-09 automatic spontaneous ignition point tester.

EDKF-09 Air Release Value Tester.

EDZY-08 automatic rotary oxygen bomb value tester.

Edff type resistance probe corrosion monitor.

EDLQ-2 Asphalt Oil Stain Cleaner.

EDZL-2A Petroleum Products Distillation Instrument.

EDSY-1 thermostatic water bath.

EDIJ-II Insulating Oil Dielectric Strength Tester.

EDIJJ—IIB type insulating oil dielectric strength tester.

DZL-A series two-stage high-efficiency vacuum oil purifier.

LY series plate and frame pressure oil purifier.

SL series portable oil purifier.

ED6000 Integrated Precision Oil Dielectric Loss Tester.

EDMD series density meter.

An instrument designed to test how much voltage the insulating oil can withstand.

An instrument for testing transformer oil.

Measurement of the dielectric strength (breakdown voltage) of an insulating material.

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The use of the pro-withstand voltage insulation tester is as follows:1Turn on the power supply, turn on the power switch of the withstand voltage tester, and turn on the device; Set the parameters such as alarm leakage current, test voltage and test time of the instrument according to the regulations.

2.The machine under test is connected to the low end of the hipot tester (lead wire plug-in plate), and the test wire should be in contact with the ground wire or housing of the test object. Round which 3

Then press the "Start Switch" button on the test probe, at this time, the "test" indicator light of the device is on, and the output voltmeter indicates that the standard setting value has been reached, that is, the power-on test has begun. 4.Within the set time, the ultra-leakage light is not lit, and the tested model is qualified.

5.If the machine under test exceeds the set leakage current value, the instrument will automatically cut off the output voltage, and at the same time, the sharpener will alarm, and the over-leakage light will be on, then the machine under test will be unqualified, at this time, release the "start switch" button on the handle of the test probe or press the reset button to clear the alarm sound, and press the start button again when testing. The control part is the core of the whole instrument, which controls the start, reset, sound and light alarm, timing, automatic cycle test and other functions of the whole instrument.

When the test voltage rises to the upper limit of the rising voltage and remains for 60s, the insulation of the object under test is not broken down in this process, that is, the test instrument of the withstand voltage insulation tester will prompt that the test is qualified; On the contrary, if the insulation of the DUT is broken down, and the current flowing through the DUT and the instrument at this time, the withstand voltage insulation tester will send out a current alarm, indicating that the test is unqualified. Hope mine can help you <>

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The withstand voltage tester is also called the electrical dielectric strength tester or the dielectric strength tester, and is also called the dielectric breakdown device, dielectric strength tester, high-voltage tester, high-voltage breakdown device, withstand voltage tester, etc. A test in which a specified AC or DC high voltage is applied between the live and non-live parts of the electrical appliance (generally the shell) to check the withstand voltage of the electrical appliance. In long-term operation, electrical appliances must not only bear the effect of rated working voltage, but also bear the overvoltage effect of short-term higher than the rated working voltage caused by operation (the overvoltage value may be several times higher than the rated working voltage value).

Under the action of these voltages, the internal structure of the electrical insulation material will change. When the overvoltage strength reaches a certain value, the insulation of the material will break down, the electrical appliance will not operate normally, and the operator may be electrocuted, endangering personal safety.

The main test indicators of electrical safety include AC and DC withstand voltage, insulation resistance, leakage current, grounding resistance, etc. The AC and DC withstand voltage test is used to test the electrical safety performance of the product in the actual working state, and is one of the important indicators to test the electrical safety performance of the equipment. At present, the withstand voltage tester on the market adopts the GB4706 (equivalent to IEC1010) standard, and the single test index test instrument with desktop structure is used more, which cannot meet the needs of users for multi-index comprehensive testing; Moreover, the current withstand voltage tester on the market mostly adopts the traditional test method, the test accuracy is not high, and the technology and main performance indicators adopted have a certain gap with the foreign advanced level, which can not fully meet the needs of the current development of electrical safety performance testing work.

Therefore, it is of great significance to study the use of advanced technology and better performance indicators in line with the latest international standards.

The hipot tester is mainly used for the withstand voltage test of polyethylene insulated power cables, and can also be used for the insulation withstand voltage test of large power transformers. The hipot tester uses ultra-low frequency and high voltage to test the withstand voltage of power cables, which is a new method.

Hipot insulation tester is used for 6 kV DC and 5 kV AC withstand voltage test. It is a complete all-in-one system that combines the four most common electrical safety requirements for safety mechanism testing in a 2U cabinet, with a smaller footprint (AC hipot, DC hipot, IR and ground continuity testing) and enabling a single interface connection. It is an enhanced graphical LCD display and analog bar graph media analyzer.

It provides AC DC withstand voltage and insulation resistance testing. In addition, through the 2kohm test mode, it is possible to perform a set of tests at connection points, to point continuity and withstand voltage tests at voltages up to 5 kV. It can be used as a benchtop instrument or as a PC in tandem with a stand-alone automatic software control software control system.

GH-6205 Insulating Oil Withstand Voltage Tester is a fully automated instrument developed in accordance with the requirements of the international IEC 156 and the national standard GB507 86 "Dielectric Strength Determination of Insulating Oil", and the feedback of the majority of users.

GH-6205 insulating oil dielectric strength tester is dominated by single-chip microcomputer, the method of starting the test is set first, and the whole process is controlled by the microcomputer automatic operation, which is simple to operate and convenient to apply. The operation of the insulating oil dielectric strength tester is divided into automatic six times and fully automatic single operation, with the functions of automatic boost test, automatic stirring, automatic processing, automatic printing and digital display and locking technology, etc., the reading is intuitive, the measurement is accurate, and the test process is safe and reliable.

GH-6205 Insulating Oil Dielectric Strength Tester is widely used in high-voltage electrical equipment such as transformers, oil circuit breakers, oil-filled cables, power capacitors and oil bushings. In operation, the performance of the insulating oil will gradually deteriorate due to the action of oxygen, high temperature, high humidity, sunlight, strong electric field and impurities, so that it can not give full play to the insulating role. The quality of the insulating oil is closely related to the breakdown voltage.

Insulating oil withstand voltage tester design control circuit in the low voltage end of China's technology, with advanced single-chip microcomputer control inverter power supply technology, eliminate voltage regulator and moving parts, the test process does not exist similar instruments are easy to mechanical wear, loose, stuck, poor contact and other shortcomings, the performance is more reliable. At the same time, it is smaller and lighter.

The direct measurement of the peak value of the voltage is very effective in avoiding the distortion of the test voltage waveform and ultimately the impact on the authenticity of the test results. The breakdown current is collected directly from the high-voltage side, which avoids the error caused by the traditional low-voltage side sampling overload protection method.

The protection response of the insulating oil withstand voltage tester is fast, the fault sample specified in the national standard of Xiaoxin breakdown current, the spark discharge current should be less than 5 mA, at present, most of the domestic instrument classification index is less than or equal to 20 ms, and the protection time breakdown current index is less than or equal to 20 mA, which obviously cannot meet the requirements of the national standard, and belongs to the obsolete products, and the GD5360B automatic insulating oil withstand voltage tester adopts advanced single-chip microcomputer control inverter power supply technology, and the decomposition is easy to protect the time less than 1 ms. The breakdown current index is less than 5 horses at the same time, which fully meets the provisions of the new national standard. In the breakdown test of oil samples, the breakdown process (spark discharge) itself has little damage to the oil sample, and it is not easy to produce carbon deposition between the electrodes of the oil cup, so as to ensure the reliability of the repeated test data.

The cable fault tester produced by Huatian Electric Power is your trustworthy choice, and you are welcome to consult with all power workers.

1. Because this insulating oil withstand voltage tester is a special test equipment for dielectric strength of insulating oil, it cannot be used for other purposes, and non-professional maintenance personnel are not allowed to open the box at will.

2. When the chassis shell is in use, it should be well grounded.

3. The insulating oil withstand voltage tester should not be touched casually during the pressure boosting process, so as to avoid the danger of high voltage.

4. Special oil cup for insulating oil withstand voltage tester. It is not allowed to be dried at high temperature.

Safety precautions for insulating oil dielectric strength tester.

1.Because this instrument is a special test equipment for dielectric strength of insulating oil, it cannot be used for other purposes, and non-professional maintenance personnel are not allowed to open the box at will.

2.When in use, it should be safely grounded and the chassis shell should be well grounded.

3.During the pressurization process, do not touch this instrument casually to avoid the danger of high pressure.

4.The special oil cup of this instrument shall not be dried at high temperature at will.

1. IntroductionBYNJ automatic insulating oil dielectric strength tester is a fully automated instrument developed according to the requirements of international IEC 156 and national standard GB507 86 "Insulating Oil Dielectric Strength Determination Method", and the feedback of the majority of users.

This instrument is dominated by single-chip microcomputer, the method of starting test after setting first, the whole process is controlled by the automatic operation of the microcomputer, which is simple to operate and convenient to apply.

Insulating oil dielectric strength tester.

Second, the use and characteristicsThis instrument is suitable for testing the dielectric strength of various insulating oils. Its main performance characteristics.

1.This instrument is equipped with an automatic detection function, such as the power on automatically enters the reset state to execute the regulator back to zero.

2.A micro panel printer is used to print out automatically.

3.According to the user's needs, the number of tests, stirring and standing time, and the voice-activated light control can be changed to continuously print and non-print.

4.This instrument uses automatic magnon stirring to eliminate the unevenness and bubbles of the oil sample.

Insulating oil withstand voltage tester.

3. Technical specificationsWorking power supply: AC220V Hz 5%.

Measuring range: AC 0 80kV

Current limit: 5mA

Measurement accuracy: 3%.

Pressure regulation speed: 2kV s 10%.

Scheduled settings: 1 to 9 times

Stirring time: 0 1 minute 39 seconds.

Stand-still time 0 10 minutes 39 seconds.

Conditions of use: ambient temperature 0 35

Relative humidity 75%.

Oil cup clearance: diameter of oil cup feeler gauge).

Volume: 415 315 315mm3

Weight: 28kg