Magnetic controlled automatic tracking tuning arc-suppression coil
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Magnetic controlled automatic tracking tuning arc-suppression coil
The first 66kV magnetic controlled automatic tracking tuning arc-suppression coil (1900kVar/66kV) in China had been put into operation in the Taipingshao 66kV substation of Dandong Power Supply Branch of Liaoning Province Power Supply Company in Jan 29, 2008.
The 66kV magnetic controlled automatic tracking tuning arc-suppression coil thatwas put into use is firstly witnessed at home and was jointly developed andmanufactured by Dandong Power Supply Company, Dandong Xintai Electric StockCo., Ltd. and Wuhan University.
Asreported, the adjustable arc suppression coil commonly used for the mediumvoltage distribution network in our country mainly adopts adjusting gapped-core type and multi-tap type. The adjustinggapped-core type arc-suppression coil changes magneticresistance through the movement of iron core toreach the purpose of inductance continuous adjustable, arc suppression coil istransferred to full compensation under normal condition, and the loop seriesconnection of arc-suppression coil resonance of anti-resonance. Thedisadvantages of the product are loud noise，poorreliability, virtual earthing and so on. The only difference between multi-taparc-suppression coil and adjusting gapped-core type arc-suppression coil is tocontrol winding turns by using load voltage regulating switch to adjust inductance.The working method of it is as same as the adjusting gapped-core type, alsousing series resistance to restrict the resonance overvoltage. Although, theproduct solves the problem of noise, but still has the disadvantages ofinductance continuously adjustable, comp, virtual earthing, etc.
The new magneticcontrolled fast auto-tacking tuning arc-suppression coil is the combination ofmodern electric controlled technology and double grade magnetic saturation technology, using self coupling type DC excitation control mode to realizefast response and continuous adjustment of arc-suppression coil inductance. The product is using a dynamic full compensation mode, which solves inherent contradictions fundamentally between the ideal goal of full compensation and the systemvirtual earthing caused by series resonance. The impedance of the magneticcontrolled arc-suppression coil is very large during normal operation of the network, which completely eliminates the hidden trouble of series resonance without series resistance. The system ofmeasurement and control measures the capacitance current of power network withhigh precision. When the single phase grounding occurs in electric powernetwork at the instant, the arc suppression coil is adjusted to fullcompensation from high impedance condition in half power frequency period, evenif the output current of the arc suppression coil is equal to the groundingcurrent of it, the residual current is smallest.
The product has the features of large range of capacity control,small humorous（≤2 %）, fast response（≤0.01sec.）,high precision of compensation, no series resonance, high reliability and freemaintenance. It is a kind of ideal equipment to ensure electric power networksafety operation as the upgraded product of existing arc suppression coil, the technical performances reaches the international advanced level.
Otherwise, thecompany has already developed and produced successfully MCR of 7500kVar/6kV, 12000kVar/10kVand 20000kVar/66kV, among them, 20000kVar/66kV MCR will be put into operationin the National Key Project. The MCR technology of the company has reached theinternational advanced level on the aspects of performance index, voltagegrade, capacity, and realized function. It provides effective measures and guaranteeto realize energy saving and consumption reduction in power system, and safeand reliable operation.
- Q: explain the difference between an insulator and a conductor
- conductors are objects that allow the movement of electrons to FLOW freely while insulators are objects that prevent or stop the movement of electrons to flow. An example of a good conductor would be gold because it is a metal and most metals are considered good consider and a good example of a insulator would be rubber.
- Q: whats the correct procedure if you found a piece of faulty electrical equipment?
- Depending on what it is and where it is at, lock it out and tag it out, then notify your boss. If you know nothing about lock outs, notify your boss and Maintenance. Wingman
- Q: for school we have to do a video on electrical safety and what to do and what not to do in a office (at work) and please give me some ideas to have that arent not to touch a live wire because i already have that idea! thank u and please help me out
- 1. Don't overload receptacles with too many plugs. 2. Don't cut up extension cords to make them work on equipment they shouldn't. (for example - Don't cut a standard extension cord plug end off, and splice it with a printer power cord, if the plug end of the printer is still good, but the wire is bad. - The cable you splice may not be rated high enough to handle the amperage of the printer) 3. Make sure electrical items aren't in areas they can get wet - A leaky roof, dripping onto a light fixture. 4. Don't run power cords across the path of forklifts, or other vehicles unless they are rated to be able to withstand that kind of traffic. 5. Make sure a qualified electrician does electrical installations - Things can get wired incorrectly and short out, spark, or catch fire if wired wrong. 6. Always use wire nuts, and/or electrical (rubber) tape when applicable when connecting wires together - this prevents loose connections, and prevents arcing or sparks from the live wires touching metal objects or each other. 7. When digging in the ground more than 12 deep, make sure you call the electric and gas companies first - Usually electrical and gas lines (water lines sometimes too) are about 18 below the surface. If you cut or break these, you can potentially be killed if you come in contact with the electrical lines, because the voltage outside of your home or building is considerably higher than the voltage wired indoors. Hope these help!
- Q: I bought an appliance and it says I need a 15 amp NEMA (standard) outlet to plug it into. The picture looks like that of a household plug outlet, 2 prongs and 1 bar, but drawing is round instead of oval. Says if not available to call electrician. Are these the same (household outlet and the NEMA 15 amp)?
- It is a normal 120VAC outlet that is required. If it is a replacement appliance plug it into the outlet its predecessor used. If there are any problems you may find the main breaker trip, and at that point you can look into a dedicated circuit. Otherwise plug it in and be happy.
- Q: Is your MOS 52c? How is it?
- Army equipment is often electrically powered. It's up to the Utilities Equipment Repairer-an essential member of the Army electrical maintenance team-to make sure all the electrical equipment remains in excellent working order. Utilities Equipment Repairers maintain and repair electrical equipment such as electric motors and electric tools. The Utilities Equipment Repairer is responsible for supervising and performing maintenance on utilities equipment and special purpose support systems. Some of your duties as a Utilities Equipment Repairer may include: Maintaining, testing, and repairing electric motors in many kinds of machines, such as lathes and pumps Inspecting and repairing electrical equipment Inspecting and repairing electric instruments, such as voltmeters Replacing worn gaskets and sealing in watertight electrical equipment Maintaining and repairing gasoline engine systems, air conditioner electrical systems and portable heater fuel/electrical systems SSG Schramm US Army 15 years OIF 2003
- Q: I suspect my house electrical ground isn't working and had suffered equipment loss due to loss thunder strike.
- If the Lightning is hitting your house then you need to call in a profesional for insurance reasons. If it is hitting elsewhere and causing damage through you electrical lines or through your grounding system then you need to look into surge suppresion for your system.
- Q: I paid taxes and homeowners fees for 15 years. There are no buildings on the land. Also had to pay for an electrical hookup, although no electrical equipment was installed.
- You need to clarify your question further. Did you deduct any of the expenses paid connected to the investment land you owned for 15 years? In tax year 2007 the long term capital gains tax federal is a whopping 5%. Figure your basis and subtract it from what you sold for; then mulitply it by 5%. Example.basis 10,000.sold for 15,000gain is 5,000.times 5%.$ 250.00 tax.
- Q: Examples include-Unplug your wireless router for 30 seconds and then plug back inUnplug all elerical cords for 45 seconds then plug back inWhy do they recommend a specific amount of time?
- It needs to shut down completly and it takes a few seconds. If you plug it back in too quickly then it acts as if it never was unplugged.
- Q: i want to where I can transformator ( i do not know the name)But I whant to there is some equipment the you connetectwith your device it will change the current. And please wherecan I buy and approximatly what is the price?Thank you
- yes u can but u would need a power volt changer to make them work in the usa the power converters cost between 10.00 - 100.00 dollars
- Q: capacitor failure inductor failure thyrisitor failure i wonder if there is any solutions for these problems !!thank you in advance .
- [1] Replace the capacitor with double voltage rating and low leakage. [2] Same inductance but made with thicker wire. [3] Replace it with higher power and voltage rating with same or faster switching rate.Add heat sink to it.
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Magnetic controlled automatic tracking tuning arc-suppression coil
- Ref Price:
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- Loading Port:
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- TT OR LC
- Min Order Qty:
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