Double Sided Water Cooled Capacitors With Groups5.2 Double water-cooled electric capacitor：5.2.1 Product features：The capacitor uses a two-sided water cooling structure,both poles areintroduced by cooling water pipes,and one of them has a porcelain casing that insulates the shell at least.This kind of capacitor is "sufficient" for water cooling, the single capacity is very large, the kVar/l Very large.5.2.2 Capacitor's technical parameters：Rated voltage：0. 25～7.2kV;Rated frequency：0.15～10kHz；Rated current：Max 5000A;Rated capacity：1000～13400kVar;Solid dielectric：polypropylene film；Impregnant：PEPE or M/DBT（DBT）；Capacitance tolerance：-5%～+5%.5.2.3 Capacitor’s shape and internal wiring diagramCapacitor’s model and significanceTake RAM5 0.75 - 1000 - 1 S as sampleRElectricAImpregnant dielectric is M/DBTMSolid dielectric: polypropylene film.5Design code0.75Rated voltage（kV）1000Rated capacity（kVar）1Rated frequency（kHz)SS：water-cooledHow to order capacitorsFollow our steps as below:No. 1: Send your capacitors drawing or other datas like Voltage (V), Capacity (KVAR), Frequency (KHZ), Current (A), Capacitance (uF) and Sizes etc.No. 2: If have drawing then we will redrawing for your reference; If don’t have drawing, then tell us datas like above No. 1, we will draw for you as our smallest sizes and send you to confirm.No. 3: After drawing confirmed then offer you best prices.No. 4: Sign contract and send deposit.No. 5: Start produce and inform you about process, send goods on time.No. 6: Testing and packing.No. 7: Delivery goods after finished balance amount.No. 8: Offer professional after sales service. Why Choose us?A, Our company specialized in R&D, design, production, sales and service of Power Capacitor and annual production capacity is over 100,000 unit, is the biggest production capacity in China so far. Those capacitors are mainly applying to medium frequency electric inductive heating system. Now we have 4 sets of most advanced production line with fully automatic, and more than 800 kinds of specifications and models. At the same time have reasonable design, advanced technology, complete set of inspection & test equipment, professional management etc. All implement the standard of GB and IEC.B, The company has more than 16 years of experience no matter in R&D or technical level etc. has been reached the advanced standard of Domestic even Worldwide. A few technical parameters like the loss of capacitors already exceed GE company from USA, so some applications and coordinate integrated equipment of power capacitors have instead of GE company in USA, such as : Inductotherm Group and Ajax corporation in USA; OTTO Junker & ABP in German and so on.C, As we are the biggest scale company of medium frequency electric inductive heating system of power capacitors , that’s why we have absolutely advantages no matter in Quality , service or Price etc. FAQ：I, The difference with other factories in management:A, The equipment’s advancement. Especially the date setting like time, temperature, vacuum degree, are according to technological parameter for fully automatic vacuum tank, as long as any data can’t reachthe requirements of technique, then can not go to next process. It instead of the traditional record’s way like omission or confusion that makes the quality problem;The robot and fully automatic welding for shell, full auto core-welding work platform ; Complete testing equipment etc. . Those are the most advanced equipment for medium frequency electric inductive heating system of capacitor. B, Very strictly controlling for raw material inspection. We made high demand agreement with material supplier that many standard must higher than government standard, even the very small piece of Cooper terminal and Cooper water pipe terminal material, was specially appointed to the professional factory and the technique of making Cooper bushing etc. C,Capacitors’ technique control and management. As we serviced for ABP in Germany & Inductotherm Group in USA for many years, that makes our management level higher and higher, u may see from our workshop. II,How do I know the quality level better?A, Lower coefficient of malfunction. Normally the damage ratio during 1 year is 5% of capacitor, but our data within 3 years, our damage ratio was less than 5‰ .B, Longer using life. Our product’s activity loss is low, small temperature rising, that’s why using life is longer.C, Won’t have serious issues like all capacitors got problem. The advanced equipment,strictly control of material ,the technique management was standard etc. are all making sure that serious issues will not happen .III, How to use the easiest way to compare those technical level with different factories?A, Test the capacitance and compare. Capacitance within ±5% uF is normal, if over this standard is unqualified or the factory wants to reduce the cost so jerry-builded to cheating customers. The bigger fluctuations means lower level of automatizationB, Test the loss to compare. The loss of capacitor is an important symbol to measure the quality is good or not, it decides the using life and the function & effectiveness in circuit. If temperature of capacitor is 10 ℃ more then the using life reduce half. Normally customers not easy to find, so I suggest customers buy an handheld LCR, item No.: TH2822 series to check. It can measure loss data within 1K-10K frequency. IV, Why AC filter capacitor have quick attenuation ? Sometimes will burn even explodeA, Element breakdown attenuation. If quality have problem, then after element breakdown is short circuit, big energy of course will easy burn and explode, because the dielectric is vegetable oil. The breakdown have 2 kinds: one is because of this dielectric insulation is weak and can’t bear those kind of voltage; Another one is because product have big defect of loss when operation by high temperature breakdown. When continually breakdown you can hear"Bala Bala …" small firecracker noisy voice. B, The place of connection was disconnected and capacitance begin to attenuate. As there are some place or whole place broken and capacitance attenuate very fast because of weld & metal spraying part have defective that make high temperature, that’s why some user say only used for few hours then no capacitance…… V, There are some capacitor manufacturer told customer :" Same capacitor use in other place is good, why broken in your place?", also some customer say:" I use here the place no problem, nothing happened for capacitance attenuation, but use in other place always broken……" First of all we need to make sure it’s not quality problem, the main problem is: the difference of user’s capacitor configuration and the manufacturer’s technical level . A, So far in the market, AC filter capacitors configuration is different: a, Some filter capacitance are corresponding to multiplied to AC current. b, Some are as demand of filter capacitance relationship of different frequency bands’s power/kw. c, Some are as the rate of current inverter and current filter. d, Some are as the rate of resonant tolerance and filter current tolerance. etc. According to our so many years experience of series resonant that those different ways of configuration are reasonable, and can make sure the attenuation level within 5 years.
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