With the development of society people have higher and higher requirements for the safety and reliability of power consumption. High-voltage circuit breakers have the dual tasks of control and protection in the power system. The performance of the power circuit is directly related to the safe operation of the power system. The mechanical characteristic parameter is one of the important parameters for judging the performance of the circuit breaker.
The Breaker Analyzer is a special instrument developed by the company to meet the needs of various high-voltage switch operating characteristics tests. It can accurately measure low-oil multi-oil vacuum sulfur hexafluoride and other high-voltage circuit breakers of various voltage levels. Mechanical dynamic characteristics parameters. The instrument adopts large screen display Chinese characters prompt man-machine dialogue mode operation Chinese characters display results and printouts with intelligent multi-function accurate data strong anti-interference simple operation small size light weight and beautiful beauty.
Product nickname High voltage switch mechanical characteristic tester Switch mechanical characteristic tester High voltage switch comprehensive tester Circuit breaker dynamic characteristic tester Circuit breaker mechanical characteristic tester Circuit breaker comprehensive tester High voltage switch time characteristic tester High voltage switch characteristic tester Switching characteristic tester Breaker Analyzer Switch parameter tester
Product Introduction
The test system is mainly for power transformer distribution transformer no-load load characteristics; Dc resistance; Variable ratio group test also can be tested transformer power frequency withstand voltage test. At the same time external pick up ct interface is reserved for capacity increase.
Transformer comprehensive test station measurement part is controlled by single chip microcomputer and testdata such as digital display no-load and short circuit are sampled synchronously by single chip microcomputer avoiding errors caused by manual calculation of voltage ammeter and power meter readings respectively in traditional test methods.
product names Comprehensive test platform for transformer characteristics Transformer characteristic test station Transformer comprehensive test bed Transformer test station Transformer test bed Transformer comprehensive test station
Transformer dc resistance test instrument is an indispensable test project of Transformer after handing in pick up overhaul and change sub-pick up switch. In general using traditional methods (bridge method and pressure drop method) measurement transformer winding group and dc resistance of large power inductance equipment is a time-consuming and time-consuming work. In order to change this situation shorten measurement time and reduce the work burden of test personnel huatian electric power company developed Transformer dc resistance test instrument (hereinafter referred to as direct resistance instrument). It adopts new power supply technology featuring stable performance rapid measurement small volume easy to use high measurement precision and good data repeatability. Measurement transformer around the group and large power inductor dc resistance ideal equipment.
product namesï¼?Dc resistance tachometerã?? Transformer dc resistance test instrumentã?? Transformer winding dc resistance test instrument Transformer direct resistance speed meter Transformer direct resistance quick test instrument Inductive load Dc resistance tachometer Inductive load dc resistance rapid test instrument Inductive load dc resistance test instrument
Dc resistance around the group of measurement transformers is a very important test project. In the "test regulations of electric power equipment" its order ranks the second in the transformer test project. The "regulations" stipulates that pick up overhaul minor repair change sub-pick up head position fault check and pre-test etc. should be done in transformer. Measurement transformer must have dc resistance around the group whose purpose is:
(1) check the welding of line and lead line around the group;
(2) check if the pick up touch is good;
(3) check whether there is a broken place around the group or leading line;
(4) check the correctness of the parallel branch whether there is a few parallel guide lines winding into the winding group or a few broken line situation;
(5) check whether there is a short circuit between layers and turns.
The interface design of Dc resistance rapid test instrument adopts microcomputer control big screen backlit Chinese liquid crystal screen show operation is simple show clear man-machine interaction interface friendly measurement process and instrument work state prompt is clear and sufficient no operation personnel need to memorize too many procedures; Huatian electric power adopts current source line-based compensation technology with stable test high measurement precision and fast speed improving measurement efficiency and reducing work intensity of operation personnel. Technically "four-end" measurement is adopted to eliminate the measurement error caused by line resistance with pick up contact. Overvoltage protection function can resist electric potential impact. Panel printer can print measurement results quickly (selected). Small size light weight easy to carry.
Dc resistance rapid test instrument is applicable to measurement with analysis of various electric transformer transformer winding group and other perceptual low resistance.
product names Dc resistance tachometer Transformer dc resistance test instrument Transformer direct resistance speed meter Transformer direct resistance quick test instrument Inductive load Dc resistance tachometer Inductive load dc resistance rapid test instrument Inductive load dc resistance test instrument Dc resistance rapid test instrument
TKBB-S Transformer Ratio Tester is specially designed for three- phase transformer in power system especially for transformer of type Z winding and other transformers whose zero-load current is relatively high.Transformer turns ratio test is very important in order to find out the transformer has the right ratio corresponding on its rated voltage in primary and secondary. TKBB-S is single phase, automatically test set specially designed for turns ratio, phase shift and excitation current measurements of power, distribution and instrument transformer.
The tester has wide testing range fast testing speed favorable repeatability flexible data processing convenient connection complete protection easy learning and convenient operation.
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The on-load tap changer is the only moving part connected with the transformer circuit so more and more attention has been paid to the detection of the on-load tap changer.In the electrical equipment handover and preventive test regulations it is required to check the action sequence of on-load tap changer measure switching time etc.This device is mainly used for measuring the transition waveform transition time transient resistance of transformer on-load tap changer three-phase synchronism etc.
Impulse voltage generator is mainly used for impulse voltage test of power equipment such as lightning impulse voltage full wave lightning impulse voltage truncation wave and operating impulse voltage wave to test insulation performance.Impulse voltage generator a power supply device that imitates impulse voltages such as lightning and operating overvoltages.It is mainly used in insulation shock withstand voltage and dielectric shock breakdown and discharge tests.
Scope of application: standard lightning shock lightning cut-off wave for transformers reactors mutual transformers and other high voltage electrical appliances high voltage thyristor valve SVC(HVDC) power cables all kinds of high voltage insulators bushing operation shock and all kinds of non-standard shock wave impulse voltage test required by users.Various test waveforms (standard and non-standard waveforms user-generated waveforms) can be generated by a single set of equipment.Field of application: lightning protection and lightning test for quality inspection measurement inspection and supervision organizations power equipment manufacturers railway communications aerospace and aerospace vehicles military research units universities and meteorological departments.
900kV/67.6 kJ Lightning Impulse Voltage Generator Complete Test Equipment for Transformer Reactor Cable
product brief introduction Product Introduction
series is the equipment of testing DC voltage and DC leakage current of water-cooled generator in the situation of water through which completely overcome the problems of long blow water time bottom water hard to dry easy to cause arcing within the coil. The device is light simple wiring and easy to read. Polarization compensation voltage is output directly by the case.
product features Product Characteristics
1. Electronic control and tune easy to operate.
2. The date of voltage and current are recorded in the panel reading without conversion.
3. One minute timing and tip function.
4. Perfect over-voltage and over-current protection function inside also zinc oxide over-voltage protection outside which ensure safety of generator.
5. Portable design suitable for on-site testing.
6. Four parts separated: control unit Intermediate Frequency Transformer doubler and accessories all packed with special shockproof aluminum alloy cabinet easy to move.
Product Introduction
TKJF fit for many products it has high sensitivity high S/N a large screen which has clear testing wave displaying high frequency ellipse scan (the power is less than 1VA). auxiliary zero marking system. The discharge meter has pointer/digital display and linearity /digital function. The amplifier has large dynamic range 9 kinds of frequency band combinations.
TKJF is a powerful tool for developing new high voltage electric products and improving the quality of the products. It is also an efficient testing device to judge the work condition of equipments on the work field. This device is used together with model JZF-9 or JZF-10 calibrator.
product features Product Characteristics
Working Principle
When measured piece Cx has partial discharge under testing voltage the circuit will have pulse current which get by the input unit. The pulse signal is amplified by front amplifier and the frequency band is chose by filter amplifier then been amplified to needed amplitude by the main amplifier. The pulse signal will be displayed on oscillograph screen. The pulse value is also sent to the pulse peak meter and displayed immediately. The time window unit chooses a working period of the pulse peak meter during each cycle of testing voltage and it increases the brightness of the relevant displaying area in this time. In this way it can avoid the disturbing of fixed phase.
Input discharge volume to the measured piece Cx through JZF series PD external calibrator adjust the fine adjusting knob till the displayed value is equal to the discharge volume the discharge can be read directly and conveniently on the meter without counting.
The testing voltmeter will have an over zero mark signal of testing voltage through the voltmeter resistance R and the zero mark pulse will be displayed on oscillograph screen. The testing voltage can be displayed on KV meter.
Product Introduction
The product combines modern advanced digital variable frequency technology and microcomputer control together therefore it can realize the full automatic voltage boost step down measurement and protection as well as the manual intervention in the process of automatic voltage boost. The full electronic design ensures the small size and light weight. The big LCD screen ensures the clear and visual display and can display the output wave form.
Product Characteristics
VLF (Very Low Frequency) Testers are suitable for testing power cables transformers switchgear rotating machinery and other electrical apparatus.
1. Data of current voltage wave form can be directly sampled at high voltage side so the data is real and accurate.
2. Overvoltage protection: If the output exceeds the set limit of voltage the instrument will shut-down to protect itself the actuation time is less than 20ms.
3. Overcurrent protection: It is high-low voltage dual protection in the design the accurate shut-down protection can be made according to the set value at high voltage side; If the current on low voltage side exceeds the rated current the instrument will take shut-down protection the actuation time are both less than 20ms.
4. A high voltage output protective resistor is provided in the voltage boost body in the design and this eliminates the need of additional protect
Product Description
ZGS type DC high voltage generator used AIPWM technique adjusted the inaccuracy linearity of PWM technology let the instrument precision greatly improved. It is mainly used in the electric power department power department of industrial and mining metallurgy iron and steel enterprise for zinc oxide lightning arrester power cables transformers circuit breakers generators and other high voltage electrical equipment of DC withstand voltage test or DC leakage current test.
Product Characteristics
1ã??Dc high voltage generator adopts high frequency PWM technology to make closed adjustment with high voltage stability, small ripple factor and fast reliable protection circuit. The generator can endure direct discharge by devices of large capacitance. It is of small size and of light weight, convenient for field use.
2 Full range of linear smoothly adjusted voltage, with voltage regulation accuracy smaller than 0.1%; voltage measurement accuracy is 0.5%, resolution 0.1kv; Current measurement accuracy is 0.5%, the minimum resolution: control box 1µA, shock resistance current 0.1µA.
3 The generator uses AC 220 V power supply (AC220V±10%, 50 hz±1%), the ripple factor is less than 0.5%, and can be used for all-weather at the site .
4 High voltage multiplier uses Dupont materials for full solid encapsulation, overcoming the inconvenience brought by the air and oil filled equipment. Broad base and outer cylinder of light quality makes it stand steadily and more convenient for maintenance.
5 75% MOA voltage switch button, simple and convenient testing arrester.
6 Over-voltage setting function displays the over-voltage value during regulation process; perfect protection against discharge of over-voltage, over-current and short circuit. This is the best companion for cable experiments.
7 Perfect break line and non-zero potential start protection function protects the operator and samples at any time. This product has overall design of shock-proof control box, concise, clear panel design and voice prompt for operation.
AC hipot tester series Testing Transformer is power plants power supply bureau and research institutions and other users to do the AC voltage test basic test equipment by the standards of the State Bureau of Quality Supervision for a variety of electrical products electrical components insulation material dielectric strength test etc. the insulation level assessment of products under the provisions of the voltage insulation defects were found in the sample and measure the ability of over-voltage.
AC HV Testing Transformer Classification:
There are four kinds of high voltage testing transformer according to the medium points:
1. Oil-immersed high voltage transformer test: large capacity cheap convenient maintenance mainstream products.
2. Inflatable high voltage test transformer : interrupter resistance and light weight.
3. Dry type high voltage testing transformer: light weight light volume can run backward price expensive.
4. Series type high voltage testing transformer: small volume low voltage light weight easy to transport and install.
450kV 20kJ High Voltage Impulse Voltage Test System for Lighting Test
Impulse Voltage Test System is used for the full-wave and cut wave tests of standard lightning impulse voltages for power transformers transformers reactors lightning rods switches bushings insulators and other test products with voltage classes of 35kV and below.
Product Description
ZGS type DC high voltage generator used AIPWM technique adjusted the inaccuracy linearity of PWM technology let the instrument precision greatly improved. It is mainly used in the electric power department power department of industrial and mining metallurgy iron and steel enterprise for zinc oxide lightning arrester power cables transformers circuit breakers generators and other high voltage electrical equipment of DC withstand voltage test or DC leakage current test.
Product Characteristics
1 Dc high voltage generator adopts high frequency PWM technology to make closed adjustment with high voltage stability, small ripple factor and fast reliable protection circuit. The generator can endure direct discharge by devices of large capacitance. It is of small size and of light weight, convenient for field use.
2 Full range of linear smoothly adjusted voltage, with voltage regulation accuracy smaller than 0.1%; voltage measurement accuracy is 0.5%, resolution 0.1kv; Current measurement accuracy is 0.5%, the minimum resolution: control box 1�µA, shock resistance current 0.1µA.
3 The generator uses AC 220 V power supply (AC220V±10%, 50 hz±1%), the ripple factor is less than 0.5%, and can be used for all-weather at the site .
4 High voltage multiplier uses Dupont materials for full solid encapsulation, overcoming the inconvenience brought by the air and oil filled equipment. Broad base and outer cylinder of light quality makes it stand steadily and more convenient for maintenance.
5 75% MOA voltage switch button, simple and convenient testing arrester.
6 Over-voltage setting function displays the over-voltage value during regulation process; perfect protection against discharge of over-voltage, over-current and short circuit. This is the best companion for cable experiments.
7 Perfect break line and non-zero potential start protection function protects the operator and samples at any time. This product has overall design of shock-proof control box, concise, clear panel design and voice prompt for operation.
The test transformer calls the booster it is the basic test equipment used by the power station supplying and distributing the electrical power system and the scientific research unit. Which used in the insulated intension test on all kinds of electrical products electrical equipments and insulated materials testing the insulated level of products discovering the insulated objection of quizzee scaling the capacity burdened voltage
AC HV Testing Transformer Classification:
There are four kinds of high voltage testing transformer according to the medium points:
1. Oil-immersed high voltage transformer test: large capacity, cheap, convenient maintenance, mainstream products.
2. Inflatable high voltage test transformer : interrupter resistance, and light weight.
3. Dry type high voltage testing transformer: light weight, light volume, can run backward, price expensive.
4. Series type high voltage testing transformer: small volume, low voltage, light weight, easy to transport and install.
1 Dc high voltage generator adopts high frequency PWM technology to make closed adjustment with high voltage stability, small ripple factor and fast reliable protection circuit. The generator can endure direct discharge by devices of large capacitance. It is of small size and of light weight, convenient for field use.
2 Full range of linear smoothly adjusted voltage, with voltage regulation accuracy smaller than 0.1%; voltage measurement accuracy is 0.5%, resolution 0.1kv; Current measurement accuracy is 0.5%, the minimum resolution: control box 1 A, shock resistance current 0.1 A.
3 The generator uses AC 220 V power supply (AC220V±10%, 50 hz±1%), the ripple factor is less than 0.5%, and can be used for all-weather at the site .
4 High voltage multiplier uses Dupont materials for full solid encapsulation, overcoming the inconvenience brought by the air and oil filled equipment. Broad base and outer cylinder of light quality makes it stand steadily and more convenient for maintenance.
5 75% MOA voltage switch button, simple and convenient testing arrester.
6 Over-voltage setting function displays the over-voltage value during regulation process; perfect protection against discharge of over-voltage, over-current and short circuit. This is the best companion for cable experiments.
7 Perfect break line and non-zero potential start protection function protects the operator and samples at any time. This product has overall design of shock-proof control box, concise, clear panel design and voice prompt for operation.
Designed for the requirements of the equipment it is widely used in the AC withstand voltage test of the 35-220kV class string-type voltage transformer of the power system to evaluate the main transformer from the insulation strength and also to the winding of the motor and the small transformer. Induction test; can also be used as a short-time 150Hz power supply.
1 the company's Triple frequency transformer is simple to operate reliable performance
2 can well meet the needs of transformers transformers withstand voltage
1 Due to full compensation of resonant reactive power the power of power supply and equipment is less than 1/10 of the required capacity of the subject (1/q10); Small size and light weight with the same capacity large output capacity of the device and small power capacity required for configuration cheap convenient and safe operation.
2 Series resonance is actually a current filtering circuit so that the current passing through the subject is basically the fundamental current and the waveform distortion rate (THD) of the output voltage is very small which is superior to all existing ac voltage withstand equipment.
3 The short circuit current of the sample after flashover or breakdown is only less than 1/10 (1/Q) of the test current before short circuit which can effectively prevent the expansion of damage to the fault point after breakdown.
4ã??After flashover the arc will be automatically extinguished immediately. The long (number of seconds) process of restoring resonant state voltage after arc quenching is a steady-state establishment process and there is no danger of voltage overshoot and no danger of restoring overvoltage in microsecond millisecond transient process.
1 Due to full compensation of resonant reactive power the power of power supply and equipment is less than 1/10 of the required capacity of the subject (1/Q>10). Small size and light weight with the same capacity large output capacity of the device and small power capacity required cheap convenient and safe to use;
2 Series resonance is actually a current filtering circuit so that the current passing through the subject is basically the fundamental current and the waveform distortion rate (THD) of the output voltage is very small which is superior to all existing ac voltage withstand equipment.
3 The short circuit current of the sample after flashover or breakdown is only less than 1/10 (1/Q) of the test current before short circuit which can effectively prevent the expansion of damage to the fault point after breakdown;
4 After flashover the arc will be automatically extinguished immediately. The long (number of seconds) process of restoring resonant state voltage after arc quenching is a steady-state establishment process and there is no danger of voltage overshoot and no danger of restoring overvoltage in microsecond millisecond transient process.
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