Digital double clamp Phase voltammeter is a high-precision low-price hand-held double-channel input measurement instrument designed for voltage current and Phase measurement on site.Using this meter the phase between u-u i-i and u-i can be easily measured in the field the phase sequence of sensitive and capacitive circuits and three-phase voltage can be distinguished the wiring group of transformers can be detected the secondary circuit and bus differential protection system can be tested the phase relationship between CT of each differential protection group can be read out and the wiring of the electricity meter can be checked.The tongs current transformer is used to input the measured current so there is no need to disconnect the measured line.When measuring the phase between u1-u2 the two input circuits are completely insulated and isolated so it completely avoids the possible short-circuit of the measured circuit caused by wrong wiring and thus burns out the measuring instrument.The display screen USES high-contrast Liquid crystal display with words up to 25mm and The screen Angle can be freely converted to about 70 to obtain better visual effects. Digital double clamp Phase voltammeter enclosure USES engineering insulation materials another rubber vibration protection sleeve safe and reliable. Product namesï¼?Phase meter double clamp Phase meter double clamp Phase voltammeter clamp forms a table clip-on Phase voltammeter Digital Phase double clamp Phase meter Digital double clamp table low-pressure volt-ampere Phase inspection table hand-held Digital double clamp Phase voltammeter double clamp type Digital Phase meter double clamp Digital Phase meter double clamp type volt-ampere Phase meter double clamp volt-ampere Phase table double clamp Phase meter Digital display double clamp Phase voltammeter
Product Introduction 1. Integration design of clamp meter and energy standards colorful and touch-screen display easy operation 2. Intelligent Li-battery power supply longest working time: 24 hours 3. Wide voltage and current measuring range: voltage 5-220V current 0.01-50A 4. Parameters display in one screen display 5. Automatic compensation accuracy reaches 0.1 class 6. Easy carrying strong anti-interference ability 7. 16 bits high precision AD converter 32 bit ARM processor core. 8. Data saving and calibration storage capacity up to 999groups of testing data
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.
product brief introduction Product Introduction Intelligent instrument calibrator for PT CT error and impedance admittance test.It meets the requirements of jjg313-94 current transformer verification regulation and jjg314-94 voltage transformer verification regulation.
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. 1. The instrument also has a recursive method to measure the current transformer error which is convenient for the on-site verification of the measurement device. 2. On-site verification of current transformers does not require standard current transformers current risers load boxes voltage control boxes and high-current conductors. It uses extremely simple test wiring and operations to achieve the verification of current transformers greatly reducing the work The intensity and working efficiency are improved which is convenient for the on-site verification of transformers. 3. The instrument has a standard voltage transformer equivalent to the same transformation ratio of the measured current transformer. Its accuracy can reach 0.05 level and the transformation ratio and no-load error of the measured current transformer can be accurately measured. Then combine the test results of impedance and admittance to calculate the error of the transformer. 4. Adopt different frequency power supply test close to power frequency to prevent on-site power frequency electromagnetic radiation and series interference. 5. Wide measuring range can reach 5A / 5A ~ 25000A / 5A or 5A / 1A ~ 6300A / 1A.
Product Introduction 3-phase energy meter calibrator introduction: HZ-3521 handheld meter field calibrator is a measurement of electrical parameters power meter calibration wiring judged as one of the high-precision test instrument. Product Characteristics 3-phase energy meter calibrator introduction: TKSX-3 handheld meter field calibrator is a measurement of electrical parameters power meter calibration wiring judged as one of the high-precision test instrument. 3-phase energy meter calibrator technical parameters: Input feature Voltage measuring range: 0 ~ 400V 57.7V 100V 220V 400V fourth gear automatic switching range. Current measuring range: 0 ~ 5A built-in transformer into 5A (CT) files. Clamp transformer for the 5A (small pliers) 25A (small pliers) 100A (the clamp) 500A (the clamp) 400A (tongs) 2000A (tongs) six stalls. (Including medium and large Clamp Meter is optional) Phase angle measuring range: 0 ~ 359.999 Frequency Measurement Range: 45 ~ 55Hz.
SMG7000 Handheld Power Quality Analyzer Input Characteristics 1. Voltage measuring range: 0~400V auto. 2. Current measurement range 3. Clamp transformers (three): 5A/25A (standard) 100A/500A (optional) 400A/2000A (optional) 4. Phase angle measurement range: 0~359.99 �°. 5. Frequency range: 45~55Hz. 6. Voltage number of channels: three channels (UA UB and UC). 7. Current number of channels: three channels (IA IB IC). 8.Maximum number of harmonic analysis: 63 times. 9. Intervals of 1 minute maximum storage period: 18 months
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.
CASfire Technical Co.,Ltd have rich experience to provide ISO 4589-2: Oxygen Index Test to Plastics Material. EN ISO 4589-2: Plastics Determination of burning behaviour by oxygen index â?? Part 2: Ambient- temperature test. EN ISO 4589-2:Oxygen Index Test to Plastics Material - Scope This part of ISO 4589 specifies methods for determining the minimum concentration of oxygen, in admixture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions. The results are defined as oxygen index values. Methods are provided for testing materials that are self-supporting in the form of vertical bars or sheet up to 10,5 mm thick. These methods are suitable for solid, laminated or celluar materials characterized by an apparent density greater than 100 kg/m3. The methods may also be applicable to some cellular materials having an apparent density of less than 100 kg/m3. A method is provided for testing flexible sheet or film materials while supported vertically. For comparative purposes, a procedure is provided for determining whether or not the oxygen index of a material lies above some specified minimum value. Oxygen index results obtained using the methods described in this part of ISO 4589 can provide a sensitive measure of the burning characteristics of materials under certain controlled laboratory conditions, and hence may be useful for quality control purposes. The results obtained are dependent upon the shape, orientation and isolation of the test specimen and the conditions of ignition. For particular materials or applications, it may be necessary or appropriate to specify different test conditions. Results obtained from test specimens of differing thickness or by using different ignition procedures may not be comparable and no correlation with flammability behaviour under other fire conditions is implied. Results obtained in accordance with this part of ISO 4589-2 must not be used to describe or appraise the fire hazard presented by a particular material or shape under actual fire conditions, unless used as one element of a fire risk assessment that takes into account all of the factors pertinent to the assessment of the fire hazard of a particular application for the material.
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.
Product Introduction ground resistance tester rejects the traditional manual manual power generation method adopts advanced medium and large scale integrated circuit and applies DC/AC conversion technology to combine the three-end button and four-end button measurement mode into a new type of Ground Resistance meter.. The working principle is that the DC/AC converter in the machine changes DC into low-frequency constant current of AC and the circuit is formed by auxiliary ground electrode C and measured object E which generates AC voltage drop on the measured object and is fed into AC amplifier for amplification through auxiliary ground electrode P and then sent to the meter head for display through detection. With the aid of multiplying power switch three different quantity limit can be obtained: 0 ~ 2 0 ~ 20 0 ~ 200 . Didital ground resistance tester is suitable for measuring Ground Resistance of various devices and conductor Resistance of low Resistance in electric power post and telecommunications railway communication mining and other sectors; Didital ground resistance tester also measures soil resistivity and Ground voltage. Product nickname Ground Resistance Tester Didital Ground Resistance Tester Ground contact Resistance meter Ground Resistance meter Ground pile Didital Ground Resistance Tester digital Ground Resistance meter portable Didital Ground Resistance Tester digital Ground Resistance meter Didital Ground Resistance meter Tester
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. Product nickname Earth grid earth resistance tester earth grid earth resistance tester large earth grid earth resistance tester
Product Introduction 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. Product nickname Ground lead down Tester and Ground Continuity Tester
TheBY2671 digital megohm meter (2500V) is composed of medium and large scale integrated circuits. This meter has large output power high short-circuit current value and large output voltage grades (there are four voltage grades). The working principle is as follows: the DC high voltage generated by the battery inside the machine as power supply and converted by DC/DC reaches the L pole from the E pole by the tested product so as to generate a current from E to L pole. After I/V conversion and operation by the divider the measured insulation resistance value is directly displayed by LCD. Product nicknameï¼?Digital megohmmeter megohmmeter digital megohmmeter digital display insulation sheet insulation resistance by megger tester high voltage insulation resistance tester insulation resistance meter insulation characteristics tester electric shake table digital wave table digital display table digital megohmmeter digital megohmmeter high voltage digital insulation resistance tester high voltage insulation resistance tester digital high voltage megohmmeter digital high voltage megohmmeter high Voltage digital megohm meter digital insulation meter digital display insulation meter electronic insulation resistance tester digital insulation resistance tester digital display insulation resistance tester digital display insulation resistance tester insulation resistance meter digital electric megohm meter digital high voltage megohm meter high voltage megohm meter.
The electric power production hold detector using embedded industrial microcomputer real-time operating system digital to analog pointer and digital code display perfect combination the whole list has a variety of output voltage level (2500 v 5000 v 10000 v) strong anti-interference analog pointer and digital synchronous display ac/dc simple operation automatic save measurement results etc. It is an ideal tester for measuring insulation resistance of transformers mutual inductors generators high voltage motors lightning arresters etc. Product nickname Digital Megabyte meter pointer Megabyte meter insulation meter digital high voltage Megabyte meter high voltage insulation resistance tester insulation resistance meter insulation characteristics tester electric shake meter electronic insulation resistance tester high voltage Megabyte meter insulation resistance tester
Application: ETCR2000 clamp ground resistance tester is a major technological breakthrough in traditional grounding resistance measurement. It is widely used in the grounding resistance measurement of electric power telecommunications meteorology oilfield construction and industrial and electrical equipment. When measuring circuit grounding system it is not necessary to disconnect the each connection wire and use auxiliary electrode it is safe and quick easy to use. Can measure the grounding fault which can not be measured by the traditional method because this instrument measure the integrated value of grounding resistance and ground lead resistance apply to the occasion that can not use the traditional method. Features: Apply to all kinds of ground lead.(round bar flat bar angle iron). Non-contact measured grounding resistance safe fast. Without using assistant ground rod. Without interrupting the grounding of the device under test. With double protecting insulation. With strong anti-interference ability and high accuracy. Use 5# alkaline batteries convenient for users.
Supplied with a full hydraulic set including pump, hose, cylinder, gauge, gauge adaptor and wooden case. All master puller sets include a Grip Puller, a Cross Bearing Puller, a Bearing Cup Puller and Bearing Puller Attachment. High quality, forged steel components provide superior reliability and service. Sets include speed crank and adjusting screw for fast contact to work before hydraulic pressure is applied. Master pullers set is a combination of Bearing Pullers set & Grip puller set.
Measurement of electron charge of mass ratio - BRAND - VIJAYANTA, INDIA 1. e/m Experiment, Measurement of electron charge of mass ratio, based on Thomsons method., Model: EMX 01
Frank Hertz Experiment - BRAND - VIJAYANTA, INDIA 1. Frank Hertz Experiment, Model: FH 3001.
