Two Probe Method for Resistivity Measurement of Insulators at Different Temperatures - BRAND - VIJAYANTA, INDIA 1. Two Probe Method for Resistivity Measurement of Insulators at Different Temperatures, TPX 01 The Apparatus consists of the following Sub. Unit : (a) Two Probe Arrangements with built in RTD sensor, TPA TPX 01 (b) PID Controlled Oven, PID 200 (c) High Voltage Power Supply, EHT 11 (d) Digital Picoammeter, DPM 111 Complete in all respect.
Hall Effect in Bismuth - BRAND - VIJAYANTA, INDIA 1. Hall Effect in Bismuth, Model: HEX-100 Bi The set-up consists of following units : (a) Digital Gaussmeter, DGM-202 (b) Multipurpose Stand (c) Electromagnet, EMU-75 (d) Constant Current Power Supply, CCS-10 (e) Digital Microvoltmeter, DMV-01 (f) Constant Current Power Supply, CC-75 (g) Hall Probe for Bismuth If You Still Any Enquiry Please Feel Free And Contact Us.
Apparatus for the measurement of Susceptibility of Solid by Gouys Method Various Type, BRAND-VIJAYANTA, INDIA 1. Apparatus for the measurement of Susceptibility of Solid by Gouys Method. (with EMU 75 & CC 75), (suitable for different variety of samples), Model: GMX 01 2. Apparatus for the measurement of Susceptibility of Solids by Gouys Method.(with EMU 50 & CC 50),(suitable for classroom experiment), Model: GMX-01 The set up consists of the following units : (i) Scientific Balance (with weight box), KSB - 07 (ii) Al. Samples and Glass Tube for Powder samples (iii) Gouy's Balance Stand (iv) Digital Gauss Meter, DGM 102 (v) Electromagnet, EMU 50T (vi) Constant Current Power Supply, CC 50 3. Apparatus for the Measurement of Susceptibility of Solid by Gouy's Method, Model: GMX - 02. The set up consists of following units: (i) Digital Balance, CA - 44 (ii) Al. Samples and Glass Tube for powder samples (iii) Trolley (iv) Electromagnet, EMU 50T (v) Constant Current Power Supply, CC 50 (vi) Digital Gauss Meter, DGM 202
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 1 The reactor of the same voltage grade and capacity has smaller volume and lighter weight. Small temperature rise at rated load; Dry pouring high mechanical strength good electrical insulation beautiful and reliable. 2 Large capacity margin of frequency conversion power control box; Strong protection function; Good output waveform; Good stability; With a variety of working modes easy to operate; Single-phase 220V or three-phase 380V input power supply is common which is convenient for on-site power collection. 3 Flexible configuration. Can choose different types of reactor meet the requirements of different test products achieve a multi-purpose cost-effective.
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Applications: Tests for current transformer: 1) Excitation curve and parameters test 2) Turns ratio test 3) Ratio and phase error test 4) Polarity mark check 5) Winding resistance measurement 6) Secondary loop burden measurement 7) Error line curve test for protection CT 8) Transient CT parameters test 9) CT nameplate guess 10) Saturation hysteresis loop curve measurement Tests for voltage transformer: 1) Turns ratio test 2) Ratio error and phase angle error test 3) Polarity test 4) Secondary burden test 5) Winding resistance test Features: 1. Make evaluation for test results according to selected standards. 2. Make word report for test result. 3. Make word reports one time for multi-group test records on the PC. 4. Calculate the ratio errors and phase angle errors at rated burden and working burden in one time test. 5. Compare excitation curves with saved excitation curves in the same window.
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 Designed for automatic testing of protective and metrological CT/PT suitable for laboratory and field testing. The product names PT volt-ampere characteristic tester transformer volt-ampere characteristic integrated tester CT voltage-current characteristic integrated tester CT voltage-current characteristic tester PT volt-ampere characteristic tester transformer volt-ampere characteristic tester volt-ampere characteristics of variable polarity than integrated tester volt-ampere characteristic tester volt-ampere characteristics integrated tester volt-ampere characteristic tester features comprehensive tester
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WFLC-VI Portable Waveform Recorder is a portable device based on the structure of industrial portable computer. It takes high-performance DSP high-precision ADC chip and embedded operating system as hardware and software architecture and integrates data acquisition processing transmission storage analysis and other functions as one. DSP acquisition chip for data acquisition and calculation so as to achieve full digital analog signal filtering flexible and diverse sampling frequency from 10K /s 20K /s 50k/s 100K /s can be selected by users can be used for transient electrical signal waveform recording and analysis. With advanced industrial control kernel and embedded operating system users can easily carry out data storage backup analysis output and other operationsã?? WFLC-VI portable waveform recorder is a collection of fault wave record generator characteristic test and other functions in the integration of intelligent instrument with its small size strong function scope of application is wide flexible configuration and many other advantages favored by the masses of users is a power utility workers standing it will be for the electric power industry production and technological progress to make due contributions.
Product Introduction this instrument is specially used to test power grid waveform distortion voltage fluctuation and flicker harmonic content and unbalanced three-phase power quality problems such as high precision testing instruments; at the same time it also have the the functions of electric parameter test the vector analysis. Product Characteristics Can accurately measure voltage current active power reactive power frequency phase Angle power factor and other electrical parameters It can display the measured voltage and current phasor diagram the users can know the device wiring correctly or not through the analysis of vector diagram . The current is measured by using the clamp transformer.Because using clamp current transformer measurementthe operators do not need to disconnect current loop can be measured convenient and safety. It can be equipped with different range of clamps according to the user's measurement range. It can measure and analysis the power quality from the utility grid to the client's use its measure and analysis frequency deviation voltage deviation voltage fluctuation and flicker unbalanced three-phase voltage allowed degrees and power grid harmonic. Can display the single phase voltage and current waveform and can also show three phase voltage and current waveform. All tests have screen lock function interface to facilitate users to reading and analyze the data.
HGQY-H voltage transformer field tester based on the traditional differential measurement method uses the voltage transformer load error curve extrapolation method mentioned in the newly issued JJG1021-2007 "Power Transformer" Verification Regulations. Using low-voltage extrapolation technology combined with advanced measurement circuits a single instrument can measure electromagnetic voltage transformers from 6kV to 220kV/3 with an accuracy level of 0.05 which is very suitable for field voltage transformer verification. 1. No need for booster voltage standard load box and voltage regulator on site you can achieve the test of voltage transformer ratio difference and angle difference. A single instrument weighs 12 kg which greatly facilitates on-site use. 2. The test speed of the instrument is fast and the measurement of a single voltage transformer does not exceed 1 minute. 3. The instrument is equipped with a micro printer which can print test data on site. 4. It can store 1000 sets of data and can communicate with PC by RS-232 interface. 5. The equipped data management software can be networked with the power system MIS software. 6. Adopt 10.4-inch large-screen LCD display with humanized operation interface and wiring diagram and simple operation guide are attached to the instrument. 7. The output power is large which can meet the required capacity of 220kV voltage transformer boost.
The high-voltage electric energy measurement devices of power plants and substations and the electric energy measurement devices of a large number of users are related to the interests of power generation power transmission power supply and multiple parties of users. In order to ensure accurate measurement the inspection must be carried out in accordance with SD109 "Inspection Regulations for Electric Energy Measurement Devices" and DL / T448-2000 "Technical Management Regulations for Electricity Measurement Devices". TKHG-Q current transformer field calibrator was developed based on high-end testing technology large-scale electronic circuit design and in compliance with relevant national regulations. It solves the problems of on-site verification of current transformer and voltage transformer with high working intensity and tedious operation. At the same time the product has reliable performance and powerful functions.
SMG6600 six channel differential protection vector tester is a kind of instrument which can measure primary side current secondary side current and secondary side voltage at the same time and then make analysis and report. The instrument can analyze three-phase unbalance degree and hexagonal vector diagram by measuring primary side current secondary side current and secondary side voltage and can output word and Excel files without upper computer software which is convenient for users Period processing report. The instrument adopts high-precision data acquisition chip with analog 24 bit ADC precision DSP processing data arm and TFT touch screen display measurement data intuitively and conveniently. 1. At the same time measure the 1-3 AC voltage on the secondary side; 2. At the same time measure 1 to 3 AC currents on the primary side; 3. At the same time measure 1-3 AC current at secondary side; 4. Measure the phase between voltage current and voltage (angle between primary and secondary current); 5. Measurement of power grid frequency; Measurement of active and reactive power; 7. Measurement of power factor; 8. Three phase voltage and current unbalance detection; 9. Secondary side phase voltage range: 1-500v secondary side current range: 1ma-10a primary side current: 100ma-5a; 10. Display hexagonal vector diagram (mixed primary side and secondary side); 11. It is used as leakage current meter; 12. Low power consumption design built-in rechargeable battery as backup power supply; 13. Automatic range user-friendly design of mouse operation; 14. Data storage can be exported through U disk which is convenient for user data processing; 15. The field measured data can be printed out by micro printer; 16. Export files in word and excel format to facilitate printing reports.
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At present in the electric power system the grounding resistance of the earth network is mainly measured by power frequency large current tripole method. In order to prevent power frequency interference during power grid operation and improve the accuracy of measurement results insulation preventive test regulations stipulate that the test current of power frequency high-current method shall not be less than 30A. As a result there are many problems such as bulky test equipment complicated test process high working intensity and long test time. Ground Network Earth Resistance Tester adopts new frequency conversion ac power supply and adopts microcomputer processing control and signal processing and other measures which well solves the anti-interference problem in the test process simplifies the trial operation process improves the accuracy and accuracy of the test results and greatly reduces the labor intensity of test personnel and test cost. Ground Network Earth Resistance Tester is suitable for testing power frequency grounding impedance contact voltage step voltage power frequency characteristic parameters and soil resistivity of various grounding devices. �© measurable substation ground network (4) water and fire power plants microwave station �© (10) the lightning rod (10 �©) multi-purpose machines. Ground Network Earth Resistance Tester adopts different frequency anti-interference technology which can accurately measure data at power frequency of 50Hz under strong interference environment. The maximum of test current is 3A which will not cause excessive potential of grounding device during the test. Meanwhile it also has strong anti-interference ability so it can be measured without power failure.
The electrical integrity of grounding device refers to the grounding device should be between all kinds of electrical equipment grounding device parts and the electrical connectivity between each equipment that is direct current resistance value also known as electrical conductivity. Reliable and effective connection between grounding lead and ground network is the fundamental guarantee of safe operation of power equipment. Ground down lead is electric power equipment and the connection part of the network in the long running process of electric power equipment joint is likely to be affected due to factors such as moisture rust a node or even the phenomenon such as fracture lead to ground down lead and the main grounding network connection resistance increases which cannot meet the requirements of power regulation problems in the operation of the equipment in safe hidden trouble caused serious ground operation. Corrosion and even fracture may occur to the underground grounding pole and its connecting part of the grounding device. Therefore it is necessary to test the electrical integrity of ground equipment regularly. Electric power industry standard DL/T475-2006 "guidelines for the grounding device parameters measurement regulation electric conductivity connectivity should choose special measuring instrument for 1 m instrumentresolution accuracy is not lower than 1.0 on the Richter scale are unlikely. Our company is based on this The standard developed Ground Continuity Tester is a portable Tester with a high degree of automation which is specially used to test the electrical integrity of grounding devices. Its various technical indicators meet or are superior to relevant standards. Ground Continuity Tester is a simple and convenient operation high precision fast test speed good retesting performance and intuitive reading. It is an ideal special instrument in line with the requirements of regulations which greatly facilitates the development of test projects and improves work efficiency.
