Description : The most powerful magnets commercially available Manufactured by a powder metallurgical process involving the sintering of powder compacts under vacuum Grinding and slicing possible Very reactive with moisture and oxygen A variety of Coatings can applied depending on the environment of the application Applications : various types of electric motors, engineering equipment, medical equipment, audio apparatus and household appliances
Description : Plastic-bonded magnets are particle composites with permanent-magnet powder embedded in a plastic binder. Hard ferrite (HF), various SmCo and NdFeB powders and, to a very little extent, AINiCo alloys are used as magnetic powder. For embedding the magnetic particles, thermoplastic binders as, for instance, polyamide (PA) or polyphenyl sulfide (PPS) and duroplasts like epoxy resins are used. Depending on the material composition and production process, isotropic and anisotropic magnets with differing magnetic and mechanical specifications are available. Since not only the type of magnet or plastic material, but the filling and alignment degree, too, determine the composite`s properties, the outcome is widely varying magnetic parameters and an outstanding variety in types and shapes.
Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side. This is achieved by having a spatially rotating pattern of magnetisation. The rotating pattern of permanent magnets (on the front face; on the left, up, right, down) can be continued indefinitely and have the same effect. The effect of this arrangement is roughly similar to many horseshoe magnets placed adjacent to each other, with similar poles touching.
Product description Low voltage surge protective device Rated release current: 5, 10, 15, 20ka Voltage protection level: 1.0, 1.5, 1.8, 2.0kv Product feature Ebs1u surge protector protect electric and electronics equipment against transients, originating from lighting, switching of transformers, lightings and motors. These transients can cause premature ageing of equipment, down time, or complete destruction of electronic components. Surge protector are strongly recommended to install to protect sensitive and expensive electrical equipment such as tv, video, washing machine, pc etc. The main protection spds can be installed directly after the main switch or type s rccb in any supply system such as tt, tns, tncs. Product specification/models Model: ebs1u surge protector Standard: 61643-1 Max. Continuous working voltage: 140, 275, 320, 385, 400, 420, 440v Rated release current in (ka): 5 10 15 20 Max. Release current: 5, 10, 15, 20ka Voltage protection level: 1.0, 1.5, 1.8, 2.0 kv Rated voltage ue (v): 230/400 Poles: 1, 1p+npe, 2, 2+npe, 3, 3+npe, 4 Rated frequency: 50/60hz Protection level: c, d Response time:less than 25ns Standard export carton
NDFEB magnet, magnetic assembly, ferrite magnets, SMCO, halbach array magnet, surge protection device, gas discharge tube, lightning protection earthing system, SPD, GDT, arrester, surge, lightning.
Photovoltaic System with CE & TUV DC1000V-40ka Surge Protective Device (SPD) 1. Product Function Products are mainly used in the DC power supply lighting protection and over-voltage operation protection function. 2. Main features: Use high quality varistor, reliable high-quality assurance and stable performance Modular design, can be charged plug, easy to test or replace With remote alarm device, easy for remote monitoring Adopt temperature control circuit technology, over-current and over-voltage double automatic protection circuit With working and fault display, degradation status is clear at a glance Fast response time, large discharge current capacity, low residual voltage easy to install, maintain simple
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Our featured products automatic transfer switch, circuit breaker, contactor, pilot light,relay, SPD, etc. with solid quality and considerable price and could equip them with enclosure. Surge Protection Device (SPD) It is a device used to limiting instant surge voltage and discharge surge current, it at least including a non-linear component. SPD for Power Supply System Series Selection Guide The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity. The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose. SPD for power supply system specification selection principle Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage. TT System: Uc 1.55Uo (Uo is low voltage system to null line voltage) TN System: Uc 1.15Uo IT System: Uc 1.15Uo(Uo is low voltage system to line voltage) Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone. SP1 Series Normal Working Conditions -Altitude not exceed 2000m -Ambient air temperature: Normal range: -5 ºC~+40 ºC Extend range: -40 ºC~+80 ºC -Relative Humidity: 30% - 90% under indoor temperature condition - At the place without obviously shaking and shock vibration - Non-explosion danger medium, non-corrosion gas and dust ( including conductive dust) Classification -As per Nominal Discharge Current: 5,10,20,30,40,60KA(8/20 µs) - As per Maximu
Djx specialized in carbon graphite materials and products for more than twenty years, we are confident to provide you high quality products with the most reasonable price, please join us to enjoy our quality and services. Djx supplies graphite plate for spd surge protection device with various sizes, customerized products are available depending on your pictures and drawings, we will recommend the most suitable graphite material for you, please contact us for more details. Based on the disadvantage of traditional gap surge protector (spd), and combined with the material characteristics of graphite and thompson gas discharge theory, a large scale of experiments on the new type of graphite gap spd were completed by open circuit voltage wave generator and icgs impact system. The results show that, after the high voltage trigger capacitance device was added to the new type of graphite gap spd, every gap was triggered step by step so that the voltage protection level was reduced. At the same time, the graphite gap spd is better than traditional gap spd on time delay characteristics, and is able to achieve the arc extinction requirements before the power frequency voltage dropped to zero. In addition, graphite belongs to non-metal materials; it won't produce plasma under high temperature, which can improve the stability of device and delay aging.
800_080 BT P B80 385 RM Main Features: * Small volume, high discharge capacity * Reliable protection thanks to double control disconnector * Quick response * Low voltage protection level and with double terminals connection * Green window will change when fault occur, also in the same time provide remote alarm terminal * Core components are from international well known supplier Application: This product is designed to protect low voltage devices from surge damage, used in power supply system such as power distribution-room, distribution-cabinet and other important power supply system. Widely used to protect mobile communication station, telecommunication centre, civil aviation, finance, and so on. Specifications: Technical data Rated voltage (max. continuous voltage) Uc 385V Nominal discharge current(8/20) In 35kA Max. discharge current Imax 80kA Voltage protection level at 20kA Up í_1.8kV Response time tA í_25ns Operating temperature range -40íµí¡+80íµ Cross-sectional area 1.5mm2~25mm2(solid)/35mm2(flexible) Mounting on 35mm DIN rail Test standards GB 18802.1-2002; IEC 61643-1:1998-02 Dimension 3 mods
Video signal arrestor Applications: Designed for monitor device not to be spoiled by lightning over-voltage, induced over-voltage and static discharge. Video camera E1, pdh, sdh, spdh Digital hard disk video cassette recorder Industrial control Features: Multi. Protection circuits, gas-tube+ tvs technology Dual protection in common module and different module Tvs array technology, low capacitance Multi-strike capability Specifications: Type d12bf d12bf-4d12bf-16 Electrical specifications Impedance75++ Max operating voltage12v Nominal discharge current (8/20++s)3ka Max. Discharge current (8/20++s)5ka Protection level (3ka 8/20++s) Line to line40v Line to pe160v Adapt transmission rate100mbps Insertion lossf 0.5db Response time f 5ns Mechanical specifications Connectorbnc female to malebnc female to female Number of protection ports1416 Diamension (mm)82.7*25*25130*73*25 481*84*47 Working environments Operating temperature minimum-40 Operating temperature maximum85 Operating humidity95%
Applications: Designed for monitor device not to be spoiled by lightning over-voltage, induced over-voltage and static discharge. Video camera E1, pdh, sdh, spdh Digital hard disk video cassette recorder Industrial control Features: Multi. Protection circuits, gas-tube+ tvs technology Dual protection in common module and different module Tvs array technology, low capacitance Multi-strike capability Specifications: TypeD12bfD12bf-4D12bf-16 Electrical specifications Impedance75+ Max operating voltage12v Nominal discharge current (8/20s)3ka Max. Discharge current (8/20s)5ka Protection level (3ka 8/20s)Line to line40v Line to pe160v Adapt transmission rate100mbps Insertion loss_0.5db Response time _5ns Mechanical specifications ConnectorBnc female to maleBnc female to female Number of protection ports1416
Specification: Square : 22mm Voltage : 130v ac (rms) IN : 7.5ka Imax : 15ka Application : specially used for power strip or socket Features: With built-in thermal cutoff (thermally protected) Two types : square and round type Used for power strip Different size : 8 to 34mm Peak current (8/20) : 3 to 40ka (maximum) Certificates : 1449 3rd, T & UUML.
Low voltage electric power under 600v AC for apartments or residences are Generally used without tvss (transient voltage surge suppressor). These dangerous conditions cause unexpected troubles, breakdown & failure to electric and/or electronic circuits and parts by variety of electric shocks in combination waves with over-voltage and over-current. Actually, damage by surge or transient due to lightings or switching power is increasing continuously. GNS Koreas TVSS(SPD) keeps all sorts of electrical/electronic devices, every kind of facility and equipment & life safely from the dangerous electric power quality caused by induced lighting, transient or surge incoming to electric facilities or equipments.
Request multi-purpose, all-weather polyethylene (PE) construction film used for protection and storage of materials, personnel and construction equipment during outside or indoor construction and renovation. Versatile and economical films, they are placed under trucks to avoid muddy conditions