Dc resistance tachometer is an indispensable test project for 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 developed Dc resistance rapid test instrument (hereinafter referred to as direct resistance instrument). Dc resistance tachometer adopts new power supply technology featuring stable performance rapid measurement compact volume easy to use High measurement precision and good data repeatability. Measurement transformer around the group and large power inductor dc resistance ideal equipment. Dc resistance tachometer meets the requirements of DL/ t845.3-2004 with national standard gb6587-86 "general outline of environmental test of electronic measurement instrument" and gb6593-86 "test rules of electronic instrument quality".
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.
Dc resistance around the group of measurement transformer 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 Characteristics 1 Instrument output current light weight 2 Two current output wider test range higher stability 3 It can calculate the transition resistance value and transition time value automatically 4 Has the perfect protection circuit the reliability is strong 5 5.7 "large LCD display easy to operate on site 6 With usb flash disk storage function you can store more data waveform 7 The keyboard and the one-key flying shuttle operate independently making the instrument operate more quickly and conveniently
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.
Product Introduction 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.
product brief introduction 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 TC power frequency voltage tester adopts integrated design, small size, light weight, more convenient for transportation and portable operation. The over-current protection of voltage tester is set by current relay, The high-voltage output, direct reading instrument and operation are integrated with the voltage stand. Therefore, the operation is simple, practical and reliable. product features Product Characteristics 1 functions output current instrument voltage regulator Zero point/Closing indicator timing indicator. 2 defensive function overcurrent protection timer. 3 Adopt new time relay The timing range is much wider. 4 Adopt new current relay more precise more reliable Ensure personal and equipment safety. 5 reasonably structured small in size in light weight.
product brief introduction Product Introduction The Test Transformer(ac dc hipot tester) 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. warning 1. Test transformer should be applied into use with control unit as for how to use control unit please see Operation Manual of Control unit. 2. Screening wire should be applied into the direct current test to avoid straying leakage. After test discharge rod is applied to release the restored electricity. 3. The end of high frequency voltage filtering capacitance should be connected with the ground wire together with crust of control unit to connect with the earth wire. 4. The whole test should follow the regulation in high frequency voltage test site should pay more attention to the safety of equipment and body.
Product Introduction YDW series PD tester system is mainly used for testing frequency voltage insulation level of various insulation materials insulation structure and electrical products also as partial discharge frequency testing power supply for testing object such as transformer mutual inductor and lightning arresters. It widely used in electrical manufacturing power operation departments research institutes and universities. product features Product Characteristics A variety of control methods and insulation methods can be used to configure freely according to user demand. Build-in multiple frequency power generator is used for testing partial discharge value of high voltage transformer.The system has a built-in multi- frequency power generator which can be used to measure the discharge of high voltage transformer. Manual control operation is intuitive easy to use maintenance low price. It has gas insulation transformer oil insulation dry epoxy resin insulation and other forms test transformer can choose and match according to user's demand. According to the user's requirements different sets of measuring instruments can be configured to meet the requirements of different precision and analysis faults. Automatic control system can be used in different configurations of the bureau and the results can be automatically detected and analyzed.
Product Introduction The TKJF-208 hand-held partial discharge detector is used to detect the local discharge power supply in medium and high voltage equipment.If no discharge is detected it does not mean that there is no discharge activity in medium and high voltage equipment.Power discharges often have an incubation period and the insulation may fail for reasons other than partial discharge.If a significant discharge is detected in equipment connected to the medium-high voltage power system the equipment maintenance department should be notified immediately. product features Product Characteristics a) Screen display: high-contrast 3.5 TFT color screen. b) Data storage: 1000 groups of test data can be stored. c) Working power supply: embedded 8.4V lithium battery for 8hâ??s continuous operation. d) Power supply: input 100-240VAC output 8.4V/3A charging time 3ï½?4h. e) Boundary dimension:230 * 120 * 55(mm). f) Instrument weight:1.5kg. g) Environment temperature: -25-45 h) Storage temperature: -35-60 Complete configuration: host machine sensor AC adapter connecting cable and transport case.
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.
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.
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 Introduction Digital PD Detector Partial Discharge Testing 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%
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.
Product Introduction Transformer Tester is new product created after widely adopt customers advices and deep theoretical study. It is based on the automatic FA Series Transformer Tester General which is produced by our company that is widely acclaimed and applied. The adoption of high-performance DSP and ARMadvanced manufacturing technology ensure a stable and reliable product performance full-featured high degree of automation high efficiency in the domestic leading level they are the professional testing equipments for transformer check in power industry. Product names CT parameter analyzer CT analyzer frequency CT analyzer CTPT analyzer transformer tester frequency transformer characteristic tester transformer transient characteristic analyzer current transformer tester CT characteristics analyzer current transformer current transformer parameters analyzer features analyzer CT parameter tester tester current transformer current transformer parameters characteristics tester Comprehensive instrument for the transformer
Product Introduction 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 Introduction The TKJF-208 hand-held partial discharge detector is used to detect the local discharge power supply in medium and high voltage equipment.If no discharge is detected it does not mean that there is no discharge activity in medium and high voltage equipment.Power discharges often have an incubation period and the insulation may fail for reasons other than partial discharge.If a significant discharge is detected in equipment connected to the medium-high voltage power system the equipment maintenance department should be notified immediately. product features Product Characteristics a) Screen display: high-contrast 3.5 TFT color screen. b) Data storage: 1000 groups of test data can be stored. c) Working power supply: embedded 8.4V lithium battery for 8hs continuous operation. d) Power supply: input 100-240VAC output 8.4V/3A charging time 3 4h. e) Boundary dimension:230 * 120 * 55(mm). f) Instrument weight:1.5kg. g) Environment temperature: -25-45 h) Storage temperature: -35-60 Complete configuration: host machine sensor AC adapter connecting cable and transport case.
