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    • zjdyjd GC4-3150A round club contact , circularity contact;T2 copper binding contact

      Model: GC4-3150A round plum-type contact, the number of contacts :30 •the spring piece is treated with electrophoretic primer so as to avoid oxidation and rustiness •thick silvering with strong abrasion resistance •anti-tarnish treatment to avoid oxidation and shedding of silver coating •aluminium protective casing can play the role of fastness and protection to guard against the distortion and falling off of spring pieces •the recommended size of the depth of penetration of static contact: 22±2mm

      • round club contact T2 copper binding contact circularity contact

    • Longsun OEM/ODM Design Bi/Trimetal Electrical Contacts

      Contact Rivets are made by Cold Pressure Welding Machine, and main products include: Bi-metal electrical contacts: Ag/Cu, FAg/Cu, AgNi/Cu, AgSnO2/Cu, AgSnO2In2O3/Cu, AgCu/Cu, AgZnO/Cu, AgCdO/Cu, etc. Tri-metal electrical contacts: Ag/Cu/Ag, FAg/Cu/FAg, AgNi/Cu/AgNi, AgSnO2/Cu/AgSnO2, AgSnO2In2O3/Cu/AgSnO2In2O3, AgZnO/Cu/AgZnO, AgCdO/Cu/AgCdO. The characteristics as follows: 1>. There are two kinds of composite methods in Contact Rivet: head layer, and both head and foot layer. Composite layer can use Ag, Au, Pd, Pt and its alloy materials; base material generally chooses pure copper which has better formation and electricity conductivity. Precious metal materials are only compounded atessential contact position of Electrical Contacts so that they can economize precious metal,reduce the cost of Electrical Contacts and benefits the development of society. 2>. It is much easier to choose layer alloy material than monometal contact rivet.Although precious metal alloy materials has excellent electrical contact function, they are not durable than composite rivets contacts in use. 3>. Composite Contact Rivet apply to continuous automatically production. After riveting,they don't need other manufacturing technical methods (such as electroplating, welding etc). This method not only simplifies contact manufacturing, improves efficiency and reduces cost, but also strengthens the assembling accuracy and credibility of component. Composite Rivet Contact is mainly used in Automobile, Home Electrical Appliance, Relay, Contactor, Thermal Controller, Timer Electronics and Electrical Appliance. The manufacturing and test equipments which is total amount more 200 sets for making Contact Rivet include Tri-metal rivet machine from Germany,Bi-compoundedrivet machine,Colored Microscope, 3D coordinator Apparatus,Hardness Test Machine,etc.We can develop and manufacture them according to customers’specific requirement,and the output can surpass one billion pieces annually.

      • contacts electrical contacts contact materials

    • Longsun Customized Design Silver/Silver Alloy Bimetal Contact Rivets

      Contact Rivets are made by Cold Pressure Welding Machine, and main products include: Bi-metal electrical contacts: Ag/Cu, FAg/Cu, AgNi/Cu, AgSnO2/Cu, AgSnO2In2O3/Cu, AgCu/Cu, AgZnO/Cu, AgCdO/Cu, etc. Tri-metal electrical contacts: Ag/Cu/Ag, FAg/Cu/FAg, AgNi/Cu/AgNi, AgSnO2/Cu/AgSnO2, AgSnO2In2O3/Cu/AgSnO2In2O3, AgZnO/Cu/AgZnO, AgCdO/Cu/AgCdO. The characteristics as follows: 1>. There are two kinds of composite methods in Contact Rivet: head layer, and both head and foot layer. Composite layer can use Ag, Au, Pd, Pt and its alloy materials; base material generally chooses pure copper which has better formation and electricity conductivity. Precious metal materials are only compounded atessential contact position of Electrical Contacts so that they can economize precious metal, reduce the cost of Electrical Contacts and benefits the development of society. 2>. It is much easier to choose layer alloy material than monometal contact rivet. Although precious metal alloy materials has excellent electrical contact function, they are not durable than composite rivets contacts in use. 3>. Composite Contact Rivet apply to continuous automatically production.After riveting, they don't need other manufacturing technical methods (such as electroplating,welding etc). This method not only simplifies contact manufacturing, improves efficiency and reduces cost, but also strengthens the assembling accuracy and credibility of component. Composite Rivet Contact is mainly used in Automobile, Home Electrical Appliance, Relay, Contactor, Thermal Controller, Timer Electronics and Electrical Appliance. The manufacturing and test equipments which is total amount more 200 sets for making Contact Rivet include Tri-metal rivet machine from Germany, Bi-compoundedrivet machine, Colored Microscope, 3D coordinator Apparatus, Hardness Test Machine, etc. We can develop and manufacture them according to customers' specific requirement, and the output can surpass one billion pieces annually.

      • contacts electrical contacts contact materials

    • FLKCN LSC series pneumatic fittings

      LSC series throttle is single throtting structure,it is adjusting flew air supply to change driving speed for air cylinder of other eperating elements

      • pneumatic fittings pneumatic components air cylinders

    • state power world HRYDJ (W) HRYDJ (W) Series of High-voltage Tester of AC & DC (Non-partial Discharge) for Light Oil-immersed Transformer

      Technical parameter: HRYDJ（W）series are made of high-quality materials, which contribute to its low losses, small volume, little weight, compact construction and convenience. It is widely used in power & electric system, research institutes, and large mining factories to do the tests of AC & DC withstand capability and insulating materials’ characteristic for any kinds of high-low voltage power equipments, power cables, generator, etc. Testing transformer is divided into tow kinds of voltage: single-stage and cascade. Special order is also available. Rated capacity: 1.5-1500kVA Output voltage: 1-1500kV

      • High-voltage TesteTransformerr Oil-immersed Transformer

    • state power world HRTNZD（S） HRTNZD（S）Series of Electrical Plunger Voltage Regulator

      Introduction: It is a kind of contact ratio autotransformer which can adjust load voltage within rated voltage. This series of products are well designed because they adopt UK imported A brush for voltage adjusting parts. With strict quality control during production, this kind of device is very small, light, with low waveform distortion, low noise, and low temperature. Technical parameter: Capacity: 5、10、16、20、25、30、40、50、80、100、125、160……1500kVA Maximum of phase of input and output: Single phase: 220/0-250V，380V/0-430V Three-phase: 380V/0-430（650）V Notes: Direct output would be high voltage if not set.

      • Electrical Plunger Voltage Regulator

    • state power world HRBRTC HRBRTC Type Deformation of Power Transformer Winding Characteristic Tester

      This type of instrument is adopted by introduction of foreign technology and the latest nondestructive examination equipment of the power transformer internal fault. It is used for confirming the degree of the deformation of transformer internal winding which is the important method of the preventative nondestructive examination. It applies to the power transformer of 6.3kV-500kV. The whole operating function will be pointed out in Chinese or simple English on the screen of the microcomputer. It is made up of a portable computer, a color printer and the main measurement system. The instrument can be divided into two types of testing methods by frequency response and short-circuit impedance. Range of frequency point: 1-5 kHz 1-100 kHZ 1-500kH 500-1MHz (The special layout) Precision: Wandering of frequency point Δfni≤2‰fni (The average value in the frequency domain) Amplitude resolution: 0.001dB Irregularity degree of the passband≤0.05dB ((The average value in the frequency domain) Weight: 20kg Experience accumulation: 200 main transformers

      • Power Transformer Winding Characteristic Tester

    • state power world HRBC HRBC Type On-Load Tapping Changing Switch of Transformer Tester

      This type of tester is used to measure and analyze the electric property of the on-load tap-changer of power transformer. It can measure the parameters automatically. The parameters include the transient time, the transient waveform, the transition resistor, the characteristic of three phrases synchronous, the preferential of the angle of departure and the time of switching occurs. It also has the advantages of the large screen liquid crystal display and the power-off protection. It is equipped with RS232 microcomputer interface which is useful for the microcomputer analyzing and managing automatically of the testing results. Range of the transient resistor measuring: 0-25Ω Precision of measurement: 0-5Ω ±0.1, 5-15Ω ±0.4Ω Frequency of sampling: 10-50 kHZ Transient time of waveform measurement: 0.2-64000ms Precision of measuring synchronization: 0.2ms

      • Switch of Transformer Tester

    • state power world HRCZB HRCZB Type Power Transformer Switching Wave Test Generator

      The device is 500kV with a capacity of 360MVA. All the varied power transformers for insulating and electrical strength checkout equipments have the advanced national level and have won the second prize of the Scientific and Technological Progress in Hubei province. This product is equipped with the package unit including the storage oscilloscope, the condenser divider and the injury resistance. It has the advantages of operational flexibility, low-need electric capacity, minute extension and light in weight. It has the on-the-job dependability and performance. Input: AC200V（50Hz） Output voltage: 0-100kV Peak value (Various kinds of specification) Main capacitor ：1.2-2.5μF Efficiency: 50%-80% Waveform: ≥100×200（90）×1000（0）μS Flaw detection sensitivity: It can detect the flaw of the metal short circuit and the nonmetal insulation among the high and low tension coil.

      • Power Transformer Switching Wave Test Generator

    • state power world HRBZ HRBZ Type Automatic Transformation Ratio Test Equipmen

      This type of equipment can be used to test the transformation ratio, the polarity, the bracket and the inaccuracy of the single-phase or three phase transformers. The key technical indexes: The measuring range of the transformation ratio: 1-10000 Bracket: 1-12 point Accuracy of measurement: ±0.2%

      • Automatic Transformation Ratio Test Equipmen

    • HRSFQ Series of HRSFQ Trebling Frequency Electric Power Source Generator

      This type of generator is used for alternator induced over voltage withstand test of the pressure transformer, electric motor and the transformer in order to check up on the principal and subordinate insulating strength. It is also can be used for the 150Hz electrical source of short-time operations. Input voltage: AC380V50Hz Output voltage: 300V-500V (Be adjustable according to your needs 0-5kV) Voltage＞300V (Needs external lifting pressure equipment) Wave distortion: ＜5% Output capacity: 3kVA-150kVA

      • Frequency Electric Power Source Generator

    • state power world HRWGS HRWGS Type Automatic Test Equipment for Anti-Jamming Dielectric Loss

      This type of equipment is used for measuring the dielectric loss and capacitance of condenser of the various kinds of high voltage electric power equipment as a substitute for the QSI electric bridge. Main features: There are PT inside and the high voltage standard capacitor making the wire connection easy. This equipment is made by adopting the testing theory of photo coupling data sampling and connecting the vector operation with the dephasing and the inverse method. It can eliminate effectively the disturbance in the electric field. It can be used quite well on the spot and has the best performance with the lower price among the same type of production. Key technical indexes: High voltage output: 2kV、5kV、10kV Measuring range: tgδ＜50% 30pF＜Cx＜60000pF Measuring range of the dielectric loss: 0.1 ～100% Resolving capability: tgδ: 0.01% Degree of accuracy: tgδ2%±0.05% Absolute error: tgδ0.03%

      • Anti-Jamming Dielectric Loss

    • state power world HRDWS HRDWS Type Minim Water Admeasuring Apparatus

      Brief introduction: The HRDWS-IIC Digital High Precision SF6 Minim Water Admeasuring Apparatus is the new type instrument with a high degree of automatic which belongs to the HRDWS-Ⅱseries. It is made by adopting modern advanced digital measuring technique and optimal gas circuit with producing experience for many years. It has much improved the reliability of instrument and the convenience of usage. This instrument can be used continuously and discontinuously for measuring the minim water. Compared with the other kinds of water analysis methods, this instrument can be a simply, direct and fast way for you to analyzing featuring strong stability and good repeatability. Application field: This instrument is applied for air, nitrogen, argon, hydrogen, oxygen, sulfur hexafluoride and the gases which are not reactive with the phosphorus pentoxide. It is also can be used to express analyzing, automatic monitoring and exact measuring the water content in the gas at the ministry of water conservancy and electric power, the manufacturing engineering of electronic device, and the metallurgy of iron and steel, the petrochemical industry, the railway transportation and the mining industry. The main technical parameter: Accuracy of measurement: ±5% Measuring range: 200 Shelves：0～200×10-6 (Volume fraction) 2000 Shelves：0～2000×10-6 (Volume fraction) Remarks: The range of 1000~2000 is not used for measuring. Working condition: Alternating current power: 220V±10%，50Hz Environment temperature: -5℃～+45℃ Instrument inlet pressure: Rated inlet pressure: 0.02～0.12Mpa Size: 360×260×150mm Weight: about 6kg

      • Type Minim Water Admeasuring Apparatus

    • state power world HRJFD HRJFD Type Digital Partial Discharge Detecting Analytic System

      The HRJFD system has carried the ultrasonic measurement to the local discharge of the hundreds of transformers and reactor in Gezhou Dam 500kV switch station, Wuhan Phoenix Mountain 500kV transformer substation, Shengyang transformer factory, Hefei transformer factory, Hengyang transformer factory, Guangzhou power supply bureau, Hunan electricity generating board, Chongqing transformers factory and Wuhan steel. This system has the advantage of operation reliable and easy to operate. It can meet the needs of measurement. As one of the key items of the of eight-five project, this electrical device has been widely used for the spot test and research in the related unit in the north, east, central and northwest parts of China. The system has functions of hundred-percent process controlling mode and menu prompt in Chinese character. It can access and print arbitrarily. It can automatically generate survey reports and display two-dimensional and three-dimensional local discharge atlases. It is made by adopting the skin window technique and has a good capacity of resisting disturbance. It takes the techniques of two channel measurement and digital difference technique which is able to measure the local discharge signal of two samples or the two testing point of one sample. That is convenient for analyzing the origin of the local discharge signal. This product is the national key scientific and technological project and the extension project of the ministry of electric power. It has been tested in hundreds of transformers such as the Gezhou Dam 500kV switch station, Wuhan phoenix mountain 500kV transformer substation and Shenyang transformer factory. It is reliable and easy to operate. It is specially applied for measuring the local discharge of the eclectic devices such as the transformer, the electrical motor, the mutual inductor, the capacitor, the cable, the GIS, the switches and the lighting arrester. The performance is complied with the standard of IEC-270 and GB7354. It has the hundred-percent Chinese software and the menu mode operation. The measurement and analysis of the local discharge graph data can be arbitrarily accessed and printed. It has two channels and can produce test report automatically. It has many colorful display modes those are ellipse, straight line, two-dimension and three-dimension. Detection sensitivity: 0.5pC Measuring frequency bandwidth: 1-200 kHz Gain dynamic range: above 120dB Sampling precision: 8 bit ±1/2LSB The whole equipment also includes the mainframe, display and print. (It’s not including the voltage part)

      • Type Digital Partial Discharge Detecting Analytic System

    • state power world HRJFD HRJFD Type On-Site Digital Partial Discharge Detecting Analytic System

      This system is specially applied for the field and spot check work in the electric equipment manufacturer, electricity generating and supplying department, electrical power construction, electrical installation and debugging construction enterprises. It is very convenient for measuring and fixing the database which is easy for further analysis and management. Technical parameter: Measuring channel: two channels Detection sensitivity: 0.1PC Measuring frequency range: 3dB bandwidth 10kHz~300 kHz Cell-type filter setting stage: Low end 10，20，40kHz High end 100，200，300kHz Gain dynamic range: 120dB Synchronizing frequency: 50,100,150,200 or any Hz Standard pulse generator: HRJFD-301 Full sized pulse voltage: 10V，5V，2V，1V，0.5V，0.2V (adjustable) Calibration capacity: 50pF, 200pF (adjustable) Working power supply: AC220V±10%，50Hz

      • Type On-Site Digital Partial Discharge Detecting Analytic System

    • state power world HRZJ3 HRZJ3 Microcomputer-Typed Detector of Anti-distributed Capacitive Type Direct current Grounding

      Technological characteristics: It is a new generation invented on the basis of HRZJ1 and HRZJ2 type. 1. It is possible to find out one-point or multi-point abort situation without installation, electrical cutting, and insulated pumping. 2. It directly displays grounding resistance data, which is convenient to master insulating condition. Range: 0-99KΩ 3. It directly displays grounding electrical capacity data, which is convenient to master electrical capacity disturbing condition. Range: 0-99uKor 0-99KΩ. 4. Directly displaying the grounding direction can lead the instructors to search rapidly. 5. It can adjust to the AC& DC looping current grounding, token-ring power supply grounding, and diode isolation power supply grounding. 6. Referring to semiconductor light grounding, it is easier to find out complicated signal loop. 7. Pliers with “heart-shape” designing, it shares the big or small lines without changing pliers. 8. 24V、48V、110V、220V direct current system shares a suit of direct current grounding detector. 9. Detecting sensitivity: ≥50KΩ, both index and numerical display is available, which is easy to judge. Special requirement can reach ≥100KΩ 10. Accuracy：100% 11. Anti-electrical capacity disturbance：>1200KΩ/uF 12. Signal output power: <0.15w, containing protection of current limitation, which has no influence on relay protection of power system, and automatic or operative loop, using safely. 13. Signal frequency stability: ±0.02Hz 14. Dimension of signal generator：280mm（width）×100mm(height)×300mm（depth） 15. dimension of portable machine：126mm（width）×70mm（height）×156mm（depth） 16. Deluxe Copper-aluminum Outer package is easy to carry. 17. AC & DC power supply: AC/DC 220V

      • Anti-distributed Capacitive Type Direct current Grounding

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