Ceramic Vacuum Interrupter for Vacuum Arc-Extinguishing Chamber

Ceramic Vacuum Interrupter for Vacuum Arc-Extinguishing Chamber

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Loading Port:: Guangzhou

Payment Terms:: TT OR LC

Min Order Qty:: 100 pc

Supply Capability:: 10000 pc/month

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Product Description

Material: Alumina Ceramic, Al2O3, Aluminium Oxide
Today about 80 percent of power network operators decide in favour of vacuum switching technology. The core component of this switching principle is the vacuum interrupter. Vacuum Interrupters are used for repetitive switching, motor in rush current interruption, fault protection, over current and short circuit protection. They can reliably switch high stress currents robustly without the need for unreliable cooling or ventilation systems.

Product Feture

Long Life & High Reliability
Fast Interrupting Speed
Rapid Dielectric Recovery

Applications

1. Circuit breakers
Vacuum interrupters are used in circuit breakers in the most demanding electrical circuit protection applications to minimize damage caused by electrical overloads or short circuits.

2. Load break switches
Vacuum interrupters are used in load break switches to connect and disconnect electrical load currents providing limited load switch capacity.

3. Reclosers
Vacuum interrupters are used in reclosers to automatically open and close distribution circuits in response to transient overload and fault conditions.

4. Contactors
Vacuum interrupters are used in contactors in demanding applications that require a high number of operations switching a power circuit in electric motors, lighting and heating devices, capacitor banks, and the like.

5. Tap changers
Vacuum interrupters are used in tap changers inside transformers to change the winding connections to deliver the required voltage.

6. Railway circuit breakers
Vacuum interrupters are installed in the circuit breakers on top of this special locomotive to supply electrical energy to railway locomotives' electric drive motors.

Data Sheet

Characteristics	Unit	95 Al2O3	99 Al2O3	ZrO2	GPSi3N4	BN	Glass Ceramic
Crystal Structure	-	hexagonal	hexagonal	tetragonal	hexagonal	hexagonal	-
Color	-	white	ivory	white	gray	white	white
Density	g/cm³	3.65	3.88	5.95	3.22	2.26	2.55
Water Absorption	%	0	0	0	0	0.0-1.0	0
Young's Modulus	Gpa	280	350	205	295	670	65
Vickers Hardness	Gpa	14	20	12	18-20	-	-
Flexural Strength	Mpa	280	300	900	650	51	100
Compressive Strength	Mpa	2000	2500	2200	2200	230	500
Thermal Conductivity	W/(m•K)	18-25	30	2.2	25	20	1.70
Thermal shock resistance	ΔT(C°)	220	180-200	280-350	450-650	>1500	25-100
Max. Working Temperature	C°	1500	1700	850	1200	960	800
Volume Resistivity	Ω . cm	>10^15	>10^14	>10^12	>10^14	10^13	10^16
Dielectric Constant	-	9.50	9.80	26	8.20	4.08	6.02
Dielectric Strength	kV/mm	16	22	-	16	375	40

FAQ

We have organized several common questions for our clients, may help you sincerely：

--------What is the application of Ceramic Vacuum Interrupter?

1. Circuit breakers
2. Load break switches
3. Reclosers
4. Contactors
5. Tap changers

6. Railway circuit breakers

---------What advantages of Ceramic Vacuum Interrupter?

Long Life & High Reliability
Fast Interrupting Speed
Rapid Dielectric Recovery

Q: Is ceramic knife made of ceramic, so it is called "ceramic knife"?Or what's the reason?: The ceramic knife is made of high purity ultrafine zirconia powder as raw material, through spray granulation, isostatic pressing, precision machining and other manufacture process and has high hardness, strong corrosion resistance, good chemical stability, high wear resistance, high toughness characteristics, exquisite appearance, sharp edge, never wear a real sense, never corrosion knife.

Q: How do I pick a curling iron out for every day use? What brand do I pick - Hot Tools? Helen of Troy?: Hack it up into a million little pieces, burn them and then throw the remains in the ocean.

Q: Making some decorated Christmas gifts. They are coffee mugs with acrylic paint (water based). I would like to make the paint permanent, so they don‘t wash off when cleaned. Coating is recommended for ceramic; but DOES NOT say anything about whether it is safe to eat/drink of off. * Bought Krylon Crystal Clear Acrylic Coating 1303. Only warnings include: use in well ventilated areas, do not inhale. ETC Thank you for reading: Not that I am aware of and besides, you could end up using a coating that reacts with the clay. I've seen that before. Better to choose a more decorative use of the clay. Don't forget, fire and polymer clay do not go well together either. Taking too much of a risk.

Q: I would like to find a good school preferably on the east coast with a really good ceramics department. I don‘t like to drive so major city would be ideal, but I‘m willing to move anywhere if I have to.: The Orton Foundation is the founder of modern ceramics. It is now located at Ohio. You might also whittle down your interest into a specialty (ceramics as related to aerospace, for example, might be more appropriate to go to a major Engineering school like U of Md) or design applications, interior design, traditional sculpture, etc. etc. This would help you whittle down the list of schools to a handful. Are you interested in carrying this on to get an MA/ MFA/ MS? Selecting a school with a better reputation and higher grad school placement ratio would be best. All of this information is available by looking into the handful of schools you eventually come down to. Best of luck to you!

Q: Im a following my teachers outline to do the powerpoint, and im doing the Incas and i had to make an art piece. Basically i got everything finished except this slide and i still dont get it its called Contribution to Ceramic Art History, i have friends said its what i understand while doing it or someone said something to show the difference of past to now or hook it up to the incans work. Im not sure would u give me an example thank u: it means what your research work has contributed to art history every potter has their own 'take' on art and because it is so hands on your piece is unique and must be added into the whole body or art history as it too could be found hundreds of years from now and what would people make of it so you have made some sort of homage to the ceramic work of the Incas and this is your place in the history - I always feel - when I pot - some link to all the men and women in the past who made for family reasons - to hold water and grain and party drinks something that links us to all that family life and as far as I know clay was never used for war so just by being part of that chain you have entered into the collective memory and have a piece that even if it gets broken can be found and analysed in the future to determine its origin.

Q: How can I clean ceramic tile floor without leaving a film?Ive tried mixing water vinegar, plain dish soap (tiny bit), your common household cleaner like pine-sol and they all leave film. I do have hard water so that might be the problem. ;}: Ceramic is completely sealed so any floor cleaner should work. If it's leaving a film it may be the water or maybe the cleaner is difficult to rinse off.

Q: Our bathrooms have these ceramic ends for the towel bars, but the stupid bar is plastic eventually it cracks, then breaks. I would tear them all out EXCEPT that two of them are part of the ceramic-tiled shower walls. Does anyone know of a replacement towel bar for these wonderful towel holders?: Don't take them out. What you do is get another plastic bar. put one end of the bar into the ceramic holder. mark the bar at the end that is to long just as it touches the other ceramic holder cut the plastic bar at that point. Now put the bar in the holder and move the bar 1/4 to 3/8 in the other holder. Caulk both ends with a clear silicone where the bar and the ceramic holder meet. allow the caulking to dry. That should do it. I'm a builder. I replace them all the time with out replacing the ceramic holders There are tricks to everything you just need to know how.

Q: I want to take an art class later on in college, but I can‘t decide which of the two I want to do. Which one sounds more fun and interesting, and if you had took one or both of these classes what was it like?: We have a heated mattress pad we like it much better then a blanket and we turn it on an hour before we go to bed and leave it on while we sleep.

Q: Comparing the similarities and differences between structural ceramics and functional ceramics: For the production of high temperature and high frequency components, resistors, capacitors in the electronics industry, electronic transformers and other parts of every hue. Using the optical properties of the ceramic manufacturing solid laser material, optical fiber, optical storage materials and various ceramic sensors. In addition, the ceramic is also used as a piezoelectric material, magnetic material, substrate material and so on. In short, the new agent of ceramic materials almost every field of modern science and technology, and has very broad application prospects.

Q: What are the theories and principles behind ceramic transducers, and what are its applications?: It can be tough now that there is water in the pipe. You will have to eliminate the water in the pipe by draining that area. Then, open the faucet it feeds to releave the pressure you will create during soldering. Now that that is accomplished, you will have to resolder the pipe. If all this sounds confusing, and you don't know how to properly solder, I suggest you bring in a professional to do the job. It isn't a difficult fix, but it does take some skill and experience to properly solder a copper pipe.

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