The SF6 insulated switchgear is suitable for middle voltage power distribution system with a rated voltage of 12kV. It could be used as RMUs in a power supply network, fault isolating switches and sectionalizing switches. If equipped with distribution automation devices (FTU/DTU) and communication devices, the SF6 insulated switchgear could communicate with the control center, measure the cable voltage, current, etc, and monitor the working status of switches. BKRM6- 40.5 series of ring main unit is SF6 gas- insulated metal common tank enclosed switchgear, consisting of load break switch unit, load break switch fuse combination electrical unit, vacuum circuit breaker unit, and the incoming line unit of bus. It adopts a range of advanced technologies and materials, with excellent electrical and mechanical properties, less affected by environment and climate, in small size, easy to install easy to operate, with no need of maintenance, and can be flexibly combined. Its clear and intuitive design ensures simple and direct operation, the feeder's connection capacity is large, suitable for a variety of wiring systems. Besides,we can replace the SF6 gas with nitrogen(N2 gas) that it will become a environment protection green gas insulated switchgear. The green gas insulated switchgear safer and environmentally friendly more than SF6 GIS and it will replacing SF6 GIS in the future.
1.Description Chase friction testing machine is used to evaluate the frictional characteristics of material in braking system in accordance with the SAE J661,GB 5763-2018 and GB/T 17469-2012. Chase machine is suitable for small bench test of M1, M2, N1, O1 and O2 vehicles brake linings. This machine is widely used for product formulation R&D, Quality control and Certification etc. 2.Principle A constant pressure is applied to the sample,which will be pressed against the inner surface of the friction drum which rotates at a certain speed, so a friction force will be generated along the tangent direction of the contact surface. The friction coefficient of the tested sample can be determined by measuring the pressure and friction force. During the test, the Chase friction tester controls the temperature change at any time according to the requirements. The drum outer ring is used to assist the heating tube heating and the back suction cooling, so that the temperature change at the sample is stable and the temperature measurement accuracy is higher. 3.Features (1)Loading by Pneumatic servo with high precision control. (2)Temperature of friction drum is adjustable to adapt to different test requirements and different climatic condition. (3)Rubbing speed can be set freely between 0 and 1000 RPM. (4)The maximum load is up to 2000N. (5)This machine is controlled by PC. Speed, loads, temperature and test time can be preset by software. Test results are saved in computer. 4.Standards SAE J661, SAE J866, GB 5763-2018, GB/T 17469-2012, 5.Specifications Speed 0 to 1000 RPM Load 0 to 2000 N Temperature 0-600 (1112) Heating power 6KW Friction drum Ф277mm Power AC 380V Weight Approximate 2100kg
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1. Size of concrete specimens for compression strength test Concrete cubic specimen: 150X150X150mm, 100X100X100mm, 200X200X200mm Cylindrical concrete specimen: diameter 150X300mm, diameter 100X200mm, diameter 200X400mm 2. Brief introduction of concrete compressive strength test procedure 1) Placing the concrete specimen---place the test specimen on the lower bearing block. Carefully align the axis of the specimen with the center of thrust of the spherically seated block. 2) Apply the load continuously and without shock until the specimen fails and record the maximum load carried by the concrete specimen during the test. Note the type of failure and the appearance of the concrete. 3.Relative test method GB/T 50081 standard for test method of mechanical properties on ordinary concrete ASTM C39 standard test method for compressive strength of cylindrical concrete ASTM E74 practice of calibration of force-measuring instruments for verifying the force indication of testing machine 4. Specifications for concrete compressive strength testing machine Max. capacity: 3000KN( lower or higher capacity can make to order) Grade of testing machine: grade 1 Distance between upper and lower compression platen: 320mm Stroke of piston:50mm Size of upper and lower compression platen:375X375mm Weight :about 900kg
1. Introduction and test principle of compression strength measuring The compression testing machine is to measure compression strength of corrugated boxes in the situation of pressure and protect functions of packages for the objects filled in the packages. Test principle: (1) Corrugated boxes compression strength test, loading to the corrugated boxes using a compression testing machine at a certain constant rate untill corrugated boxes are broken or till certain load or displacement are reached. (2) Corrugated boxes stacking test, loading a certain force to the corrugated box using a compression testing machine untill corrugated box is broken or sustain a certain time period. When measuring deformation of corrugated box during compression test, an original load should be set as a datum point. The datum point can refer to the following chart: Average compression force(N)Original force(N) 101-200 10 201-1000 25 1001-2000 100 2001-10000 250 10001-20000 1000 200001-100000 2500 2. Functions of compression testing machine This machine is applicable to metal, cementing compound, tubes, sectional bars, aerospace, petrochemical, waterproof rolls, wire and cable, textile, fiber, rubber, ceramics, food, mechanical packaging, geo-textile, film, wood, paper and other industries and quality supervision department, and it also can be used in college for teaching demonstration. 3. Specification of compression testing machine 1 Max. Load 20KN 2 Resolution of test force 1/300000 3 Resolution of displacement 0.001mm 4 Precision of crossbeam displacement 0.5% 5 Precision of deformation 0.5% 6 Measuring range of test force 1%-100%FS 7 Relative error of test force 1% 8 Relative error at zero point 0.5% 9 Speed of crossbeam 0.01-500mm/min 10 Precision of crossbeam speed 1% 11 Speed range of load 0.005%-5%FS/s 12 Precision of load speed When speed is less than 0.05FS/s, precision is within 1% of set value, when speed is more than 0.05FS/S, precision is within 0.5% of set value 13 Speed of deformation 0.005%-5%FS/s 14 Precision of deformation speed When speed is less than 0.05FS/s, precision is within 1% of set value, when speed is more than 0.05FS/S, precision is within 0.5% of set value 15 Stroke of crossbeam 900mm 16 Effective tensile height 650mm 17 Effective test span 400mm 18 Effective compression height 800mm 19 Diameter of compression platen 100mm 20 Voltage and power 220V,50Hz, 700W 21 Dimension of main machine 650X450X1650mm 22 Weight of main machine about 300kg
High voltage distribution switchgear 1) general A complete set of indoor equipment of a single bus bar or double bus bars segmented system rated at 3kvto 12 kv in voltage and 50 hz in frequency. It has the functions of receiving & distribution power, and controlling, protecting and measuring circuit 2) advantage 1:anti-corrosion cabinet, can be used in complex working condition2:intelligence and easy control 3:multi protection function 4:easy operation and maintenance 5:removable and full closed
1.Model:WDW-100 2.Product name:computerized electrical universal testing machine 3. Applications of testing machine This machine is applicable to metal, cementing compound, tubes, sectional bars, aerospace, petrochemical, waterproof rolls, wire and cable, textile, fiber, rubber, ceramics, food, mechanical packaging, geo-textile, film, wood, paper and other industries and quality supervision department, and it also can be used in college for teaching demonstration. 4. Features of testing machine 1) Adopting aluminum alloy cover, with attractive streamline structure 2) Mainly used to test mechanical properties for metal, non-metal and composite materials 3) Adopting precision auto control and data acquisition system to realize fully digital adjustment to data acquisition and control process. During test, it can test max. Bearing tensile force, compression force, tensile strength, deformation, elongation, yield point and other technical specifications 4) After test, the above parameters can be calculated automatically through main controller according to the test parameters, which are set before test and meantime display the corresponding test results. All test parameters can be saved and inquired after test, also can be printed out. 5) With remote control box to realize speed adjustment of crossbeam, flexibly and freely switched 6) With functions of automatic return to original position, intelligently, efficiently, quickly 7) With limit position function of any working position and over voltage, over current protection functions, reliable and safe 8) With many control modes of constant speed control to force, stress, deformation, strain and low cycle and user self-programming control 9) Switch among many test curves: stress-strain curve, load-deformation curve, load-displacement curve, load-time curve, deformation-time curve, displacement-time curve. Partial enlargement, overlap and comparison. 5.Spec. of testing machine
• conformity to international standards – iec, ul, csa, ce • 9-150 amps, 3 and 4 pole versions, ac/dc coils • high temperature limits • different levels of power and control contacts • inbuilt 1 no + 1 nc auxiliary contacts • high electrical life • fuse-less type 2 coordination charts available
• ever higher performance for your motors assured by: - the factory settings, which provide a high quality drive from the very first time the power Is turned on - the integration of standard (u/f), performance (sensorless flux vector control, or svc) And pump/fan (quadratic profile kn²) control profiles - high dynamic performance on acceleration as well as on braking - excellent speed regulation on machine load surges • reduced noise and maintenance: - no fan on models up to 0.75 kw at 240 v - cassette type fan, operates automatically on detection of specific temperature setting • designed for easy fitting and wiring of the drive: - a single tool - power terminals not tightened, ready for wiring - easy access angles - numerous, easy to identify markings • fast detection and protection against the motor current peaks associated with certain Applications (motor switching, catching on the fly, etc.) • perfect integration of single-phase 240 v model into the electrical network thanks to Its built-in emc filter
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Features 1) Translucent body, RGB illusion fiber optic light bar, 4 sets of on-board light effects switchable 2) Rubber covered hand grip 3) 6-axis gyroscope: supports Swtich native body sensing + PC simulated body sensing 4) 4 additional defined keys 5) Hall trigger, 2-speed trigger limit lock 6) ALPS rocker + steel ring anti-friction ring 7) Audio support: receiver 2.4G wireless audio 20ms low latency, support PC, switch 8) Built-in 1000mAh polymer lithium battery 9) Continuous fire, key change, macro 10) Mobile phone APP real-time tuning reference 12) Support Switch host one button awake 13ï¼?Can be purchased separately with the magnetic charging base 14) 2.4G receiver can be purchased separately: support wireless audio and multi-platform guide function
Features 1) Translucent body, RGB illusion fiber optic light bar, 4 sets of on-board light effects switchable 2) Rubber covered hand grip 3) 6-axis gyroscope: supports Swtich native body sensing + PC simulated body sensing 4) 4 additional defined keys 5) Hall trigger, 2-speed trigger limit lock 6) ALPS rocker + steel ring anti-friction ring 7) Audio support: receiver 2.4G wireless audio 20ms low latency, support PC, switch 8) Built-in 1000mAh polymer lithium battery 9) Continuous fire, key change, macro 10) Mobile phone APP real-time tuning reference 12) Support Switch host one button awake 13) Can be purchased separately with magnetic charging base 14) 2.4G receiver can be purchased separately: support wireless audio and multi-platform guide function
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