product brief introduction Product Introduction
FRC A/D digital kilovoltmeter consists of a high stabilized resistive-capacitive type passive high-voltage divider and a precision digital voltmeter for measuring AC/DC high voltage on the site of electric power systems and in various high-voltage laboratories. Both of them with measuring cable, power supply cord, and operating manual are placed in a portable aluminium case for easy carrying and use.
product features Product Characteristics
The AC/DC digital kilovoltmetre is composed of two parts of a high voltage divider and a digital kilovoltmetre. The high voltage divider is of a passive resistive-capacitive type, assembled from precision low temperature drift resistors and high quility condensers. Digital kilovoltmeter consists of ture RMS value circuit, peak values measuring circuit and digital voltmeter. Voltage divider is connected to digital kilovoltmeter by a coaxial measuring cable. The high voltage is reduced to sample value by the voltage divider, and be fed to digital voltmeter. Through function selector, the voltmeter can display DC,AC effective(RMS)value, AC peak value, and AC peak/2 value with high measuring accuracy and convenience in use.
TKDL-WS automatic temperature rise test system is used for manufacturers testing the high and low voltage electrical products before delivery. It provides two functions of large current and temperature test. Convenient for user operation improves working efficiency. It applies to power plant power distribution station electrical appliance manufacturing factories scientific researching institutes laboratory. Multi channel temperature recorder uses digital synchronous sampling technology with advantages of rapid test speed high precision convenient to operate good appearance.
product features Product Characteristics
1ã??This product is composed of large current generator voltage regulator temperature tester industrial controlling computer operation system.
2ã??Voltage and current displayed by industrial controlling computer software precision level is 0.5.
3ã??With zero position starting up protection function and emergency stop function.
4ã??Software test time self setting and with prompting function.
5ã??After current setting any deviation software can automatically adjust according to the parameters set in advance.
6ã??Prevent strong magnetic interference.
7ã??Use imported K type thermocouple: 0~1370â??.
8ã??Temperature tester with multi channel temperature monitoring measuring recording function and comparing with the test point temperature formrising temperature self alarm when the rising temperature higher than setting temperature. Any point temperatures and temperature rising value can be checked measurement error is �±1%.
9ã??Adopt anti interference technology combined with the hardware and software function is stable and anti-interference is strong. Four basic screens digital display picture bar chart display picture real time curve picture recall curve picture.
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.
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.
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.
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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.
Dc high voltage generator adopts high frequency pulse width modulation (PWM) technology to makeclosed adjustment with high voltage stability, small ripple factor and fast reliable protection circuit. The wide temperature LCD screen adopts green back light, which enables clear display either in bright light or in darkness. High-pressure components use Dupont new filling material, making the product more stable and reliable. Products are widely used in electricity power supply departments, power transmission and transformation engineering company and preventive test of large industrial enterprises and scientific research institutes as regulated dc high voltage power supply.
product features Product Characteristics
1ã??The output voltage is stable: the high-frequency voltage doubler circuit is applied and the new PWM pulse width modulation technology and the voltage and current double closed-loop feedback technology are applied to improve the power supply adjustment rate and the load adjustment rate so that the voltage stability is high and the ripple is small.
2ã??comprehensive protection: full protection function with zero protection over-voltage protection over-current protection breakdown protection protection circuit uses nanosecond-level special sensor action fast and reliable effectively protect personal and equipment safety.
3ã??0.75U function: Add intelligent high-precision 0.75U function one-button button press this button the voltage and current will automatically jump to the 0.75U state which is conducive to the test of zinc oxide arrester.
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.
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.
Digital PD Detector Partial Discharge Testing Product Overview
The transformer partial discharge detection device and the sensorwith the software using advanced signal processing technology covering a wide range of statistical methods and graphical display mode and coming with highenergy lithium batteries can flexibly achieve the detection of transformer partial discharge signals and ultrasonic signals capable of full range of detection for the transformer's partial discharge.
Partial discharge detection location detect the partial discharge changes in the transformer's internal during the operation by examining the partial discharge conditions of the device to analyze the insulating state of the transformer.
High frequency current transformers (pulsed current method) an ultrasonic sensor (ultrasonic method).
Through a variety of means to suppress various external noise interference it improved signal to noise ratio and the measurement accuracy.
product features Product Characteristics
Digital PD Detector Partial Discharge Testing Working Condition
Altitude 3000m
Environmental Temperature -20~60C
Relative Humidity 95%
High-speed transformer verification device is a new generation of transformer verification device developed by our company. The design idea of virtual instrument is adopted. The user only needs to operate the virtual instrument interface on the computer screen through the mouse and keyboard to input the transformer type range accuracy level capacity power factor and other parameters can complete automatic testing of current transformers and voltage transformers as well as analysis calculation and database management of test results and can be printed according to user needs various records and certificates.
1. The automatic mutual-inductor calibration platform adopts a single chip microcomputer to realize the functions of measurement control and display.
2. With computer interface improve the level of office automation and reduce the labor intensity.
3. Can have a large screen display provide a friendly operation interface and rich measurement information.
4. It can automatically realize the measurement of the transformer and can automatically switch the current and voltage load box.
5. Possess good catching measures and be able to promptly inform users of wrong information.
6. This automatic transformer calibration station can reach level 2.
7. The transformation ratio of the standard transformer and the tested transformer does not have to be equal as long as the rated primary voltage or rated primary current of the standard transformer is greater than or equal to the rated value of the tested transformer it can be directly verified which is more convenient to use.
Capacitive voltage transformer (CVT) in calibration the test must be conducted under the condition of 50Hz frequency complex geographical condition on site at the same time the traditional experiment device is difficult to meet the requirements of on-site handling testing series resonance booster device is first used in domestic field tunable resonance device has been widely used in domestic 500 kv and below the field calibration of capacitor voltage transformer.
Product Characteristics
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.
This device adopts advance ARM+FPGA high precision D/A conversion and DDS technologies can set up and regulate parameters of voltage current frequency phase etc in a long period of time via analog closed loop feedback and digital PID control
1. Can be used to test errors and variance caused by voltage current waveform or power factor change for a variety of metering instrument such as energy meter voltmeter ammeter wattmeter frequency meter power factor meter phase meter
2. Can generate distorted wave with 2~32 order harmonic harmonic number order amplitude and phase position to base wave can be controlled by programs
3. Operational amplifier work frequency 40HZ~1kHz good linearity dual output protection High fidelity output signal and high shock-proof ability
4. With RS232 and USB(optional) communication interface for PC connection
5. With aluminum alloy carrying box which look nice and with little weight
product features Product Characteristics
1 This Series Standard Current Transformer consists of primary winding Secondary winding composition
2 Check according to the standard current ratio indicated on nameplate
This Series Standard Current Transformer can be used5/5or1/1The current is self-correcting
4 With casters for easy handling
Product Parameter Product Parameters
technical parameters
service conditions temperature 5+40
humidity 80%
The workplace should not have strong external electromagnetic fields unrelated to work
Allow long service at rated current
boundary dimension HL-22/23 370*170*440mm3
HL-32/33 330*190*430mm3
HL-53/62/63/(HL-62C/63C 470*230*570mm3
weight HL-22/23 13kg
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 T
Product Description
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 reactors lightning rods switches bushings insulators and other test products with voltage classes of 35kV and below.
Product Characteristics
Rated parameter value
Rated nominal voltage ±450kV
Rated voltage ±150kV
Rated energy 20kJ
Total impulse capacitance 0.20F
The total series 3 series
Rated power capacity
The following waveforms can be generated when the load capacitance is 300~5000PF
2±30%/50 ±20%s Lightning impulse voltage full waveï¼?The efficiency of voltage 92%(no-load )
standard impulse voltage cut wave 2~6 The efficiency of voltage 92% (no-load)
The impulsevoltage waveform parameters all meet the requirements of IEC and GB311-97 national standards
Class voltage within 10% ~ 100% rated voltage range positive and negative synchronous range is not less than 20%.
Ignition range 10%ï½?100%
Synchronous discharge rate out of control 2%
Minimum output voltage 10un
Charging voltage instability ±1.0%
Service duration: > over 70% UN rated voltage can operate continuously every 90 seconds. Under the rated voltage of < 70% UN charging and discharging once every 45 seconds can run continuously.
product brief introduction Product Introduction
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.
product brief introduction Product Introduction
Alternating and direct current amphibious light AC DC Hipot Test Set. The winding is theconcentric pagoda and multilayer cylindrical type low-voltagewinding in inner high-voltage winding in outside; Outer cover is portable which has characteristics such as volume smallness weight light the shape prettiness and move convenience and so on.
Product Introduction
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.
product features Product Characteristics
1 the company's Triple frequency transformer is simple to operate reliable performance
2 can well meet the needs of transformers transformers withstand voltage
Digital PD Detector Partial Discharge Testing Product Overview
The transformer partial discharge detection device and the sensorwith the software using advanced signal processing technology covering a wide range of statistical methods and graphical display mode and coming with highenergy lithium batteries can flexibly achieve the detection of transformer partial discharge signals and ultrasonic signals capable of full range of detection for the transformer's partial discharge.
Partial discharge detection location detect the partial discharge changes in the transformer's internal during the operation by examining the partial discharge conditions of the device to analyze the insulating state of the transformer.
High frequency current transformers (pulsed current method) an ultrasonic sensor (ultrasonic method).
Through a variety of means to suppress various external noise interference it improved signal to noise ratio and measurement accuracy.
product features Product Characteristics
Digital PD Detector Partial Discharge Testing Working Condition
Altitude3000m
Environmental Temperature -20~60°C
Relative Humidity 95%
201013 Electronic Testers Suppliers
Short on time? Let Electronic Testers sellers contact you.
