A transformer is an electrical device which is used to transfer power from one circuit to another through electromagnetic induction. The power transfer is accompanied without frequency change. In an electronic system, the term power transformer is used to provide a number of AC supplies of several voltages and appropriate values of current from the public electricity supply. Tungwell oil immersed transformers are up to 750kV, 1500MVA and cast resindry type transformers are up to 110kV, 40MVA. Our design team has very strong design capabilities and uses a variety of design software including 2D and 3D electrical field FEM and Magnetic flux leakage calculators. The resulting products come with many advanced features such as low loss design, short circuit withstand assurance, reliable extra-high voltage protection with overheating controls. The range of small power transformers can be from500-7500kVA The range of medium power transformers can be from-100MVA The range of large power transformers can be from100MVA & beyond
Product description 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 Oil Immersed Testing Transformer 1 Technical index Model Capacity High Frequency Voltage Output Voltage High Frequency Voltage Output Current ) Low Frequency Voltage input Change Tempera- ture raised 30 minute V A 1.5 50 30 200 7.5 500 10 3 50 60 200 15 500 10 5 50 100 200 25 500 10 10 50 200 220/380 50/26 500 10
Product description 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 Oil Immersed Testing Transformer 1 Technical index Model Capacity High Frequency Voltage Output Voltage High Frequency Voltage Output Currentm) Low Frequency Voltage input Change Tempera- ture raised 30 minute V A YD G1.5 1.5 50 30 200 7.5 500 10 YD G 3 3 50 60 200 15 500 10 YD G 5 5 50 100 200 25 500 10 YD G10 10 50 200 220/380 50/26 500 10 YD G 20 20 50 400 380 53 500 10 YD G 30 30 50 600 380 79 500 10 YD G 40 40 50 800 380 105 500 10 YD G 50 50 50 1000 380 132 500 10
2450Kva threee phase dry type transformer Our products got certificate of ISO9001,ISO14001 and OHSAS18001. And 18 low voltage products get national certificate of CCC. Also our products get quality testing report from China Quality Certification Center(CQC). Our customers include urban distribution network, power station, transformer substation, oil, chemical, railway and big construction companies. And products export to America, Brazil, Peru, Kenya, Ethiopia, India, Myanmar, Vietnam etc. We sincerely welcome all friends from domestic and overseas to come to cooperate and develop together.
Product description This instrument absorbs the advanced technology of similar products at home and abroad, and can set up various parameters through the keyboard. This machine has a power down protection, over temperature protection, "0" C protection and gas protection, automatic electronic ignition, etc. it has the characteristics of stable and reliable performance, simple and reasonable structure, simple operation, high expansibility, etc. Technical index Temperature control: a. Chromatographic column chamber temperature a.1 Temperature control range: room temperature +8 400(Set the temperature increment 1) a.2 The precision of temperature control: It is±0.1, which is below 200;
110ACV to 12ACV 220-250ACV TO 12ACV US/EUR/AUS three standard products MOQ:100 EA Package: carton
EE30 horizontal 6+6pin customer transformers.
Product description: standard current transformer is used as a standard for calibrating current transformers, Used as a standard to calibrate current transformer whose accuracy class is two or more lower than itself. The grounding pole of the machine shell must be grounded. To avoid electric shock, the conductor must be connected to the ground Technical index 1. Temperature: -5-40 2. Relative humidity: 80% 3. Allow long-term work under the rated current; More than 600A across the core. Feature; 1. The current of standard CT and tested CT must be the same in CT calibration. 2. Follow the given wiring diagram strictly. 3. Test whether the load box is accurate or not before calibrating the transformer. 4. Forbid secondary winding opening during the calibration. 5. Select demagnetization before calibration.Short out the secondary winding before cutting off the power when the demagnetization is finished. 6.Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
Product Introduction TKJB - 1200 Six phase voltage and six phase current can be output, which has made it is possiable to be any combition, such as the output mode of the combination of conventional four phase current and three-phase current, six phase voltage mode, six phase current mode and 12 phase output mode. It not only can be compatible with the traditional way of various tests, but also can conveniently carry out differential test of three-phase transformer Product Characteristics 1 Meet all field test requirements.The Microcomputer relay protection tester is a standard of six phase current six phase voltage output at the same time the current a/phase 30 voltage125V/phase.Six - phase current in parallel up to 180A.It can not only test the traditional relays and protection devices but also test the modern microcomputer protection especially the transformer differential protection and backup self-switching device the test is more convenient and perfect. 2 All kinds of technical indexes have reached the standard of DL/ t624-1997 "technical conditions of microcomputer test equipment for relay protection" issued by the ministry of electric power. 3 Classic WindowsXP operation interface man-machine interface friendly easy and quick to operate;The high-performance embedded industrial control computer and 8.4-inch TFT true-color display with a resolution of 800-600 provide rich and intuitive information including the current working status of the device and various help information. 4 The native Windows XP system with recovery function to avoid illegal shutdown or misoperation caused by the system crash. 5 The device has an ultra-thin industrial The keyboard and a photoelectric mouse that handles everything just like a PC. 6 The main control board adopts DSP+FPGA structure and 16-bit DAC output which can generate high-density sinusoidal wave of 2000 points per week for the basic wave greatly improving the quality of waveform and improving the precision of tester. 7 High-fidelity linear power amplifier ensures the accuracy of small current and the stability of large current. 8 The Microcomputer relay protection tester with USB interface and PC communication directly without any connection easy to use. 9 Connect to laptop (optional) to run.Laptop computer and industrial computer use the same set of software no need to learn how to operate. 10 It is equipped with the independent auxiliary voltage source output the output voltage is 110V(1A) and 220V(0.6a) respectively.To be used by relays or protective devices that require dc working power. 11 With the function of software self-calibration it avoids the need to open
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 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 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 the nameplate 3 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 HJ series standard voltage transformers are designed and manufactured for the actual needs of basic power supply and production departments.This product has the advantages of compact structure small size light weight easy to carry and easy to operate without maintenance etc. This product is especially suitable for field use and can also be used as standard voltage transformer and test transformer in laboratory.
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".
Product Introduction TKJB - 1200 Six phase voltage and six phase current can be output, which has made it is possiable to be any combition, such as the output mode of the combination of conventional four phase current and three-phase current, six phase voltage mode, six phase current mode and 12 phase output mode. It not only can be compatible with the traditional way of various tests, but also can conveniently carry out differential test of three-phase transformer. Product Characteristics 1 Meet all field test requirements.The Microcomputer relay protection tester is a standard of six phase current six phase voltage output at the same time the current a/phase 30 voltage125V/phase.Six - phase current in parallel up to 180A.It can not only test the traditional relays and protection devices but also test the modern microcomputer protection especially the transformer differential protection and backup self-switching device the test is more convenient and perfect. 2All kinds of technical indexes have reached the standard of DL/ t624-1997 "technical conditions of microcomputer test equipment for relay protection" issued by the ministry of electric power. 3 Classic WindowsXP operation interface man-machine interface friendly easy and quick to operate;The high-performance embedded industrial control computer and 8.4-inch TFT true-color display with a resolution of 800 600 provide rich and intuitive information including the current working status of the device and various help information.
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.
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.
