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: An online ceramic shop that sells unpainted statues?I go to Google for EVERYTHING! I hardly come on Yahoo Answers unless I REALLY have to and this time I needed to bad. I decided that for my boyfriend and I‘s first year anniversary next month that I‘d buy paint and a very impressive ceramic UNPAINTED dragon statue and paint it myself. I am planning on visiting local ceramic shops within a week or so, but I wanted to make sure I had a site online I could rely on in case I didn‘t find what I was looking for offline. So, my question to you is, would you happen to know of any websites that sell UNPAINTED ceramic statues, preferably fantasy one‘s? Thanks for anyone who answers seriously!: Most of what you will find in ceramic shops is bisque fired slip cast figures which are intended to be glazed and refired rather than painted. They are also very fragile and shipping will require good protection. Can't help you with specific sites. Ceramic decorating is far less popular than it was ten years ago and longer - my mother did it in the 50's when I was growing up.

Q: What is the difference between pottery ceramics?: with pottery we usually refer to useful household items items like mugs, plates, vases, bowls which are made from ceramic material. The term ceramics includes pottery, but also non-functional items and it can include any artifacts made from ceramic material - including dental inlays or insulators, semiconductors or even building materials like bricks or roof tiles. While the origin of the word ceramics was pretty much the same as pottery it has come to include a much wider range of products.

Q: Now there are alumina ceramic knives on the market. What is the difference between this and the zirconia ceramic knives?: Do not buy alumina ceramic knives, the best ceramic knife on the market is zirconia, such as Shandong Jin Ao technology ceramic knife, and Tsinghua University joint research and development, quality is absolutely guaranteed

Q: What are the pros and cons of ceramic body-armor versus Kevlar fiber?: Kevlar prevents penetration by bullets but does not guard against impact. For example: if you are shot (with a normal bullet) while wearing kevlar, the force of the bullet impacting your body will (at least) leave a *massive* bruise, but the bullet will not penetrate the kevlar. I.e. the bullet will not put a hole through your body and your important internal organs. Similarly with an explosion. The force of the explosion will do damage, but any projectiles propelled by the explosion should (at least theoretically) not penetrate your body, should only leave impact damage. Ceramic body armor guards against impact (not completely, but to a very great degree). It is not flexible like kevlar, so - any projectile that does not penetrate armor will not leave any damage - an explosion will result in impact damage, but **much reduced** - basically your body being banged against the armor instead of the much greater damage of your body being banged directly by the explosive force The cons of body armor are weight, flexibility, cost. It's considerably heavier than kevlar. It's not flexible as is kevlar. It's more expensive. Note that most police-style bulletproof vests combine both, typically an armor plate inside a kevlar wrapper. The impact force of a bullet can kill even when the bullet does not penetrate kevlar, so the armor protects against the impact force of a bullet.

Q: I have an unfinished ceramics project that broke after a bisque fire (I had to glaze and fire it since it was a class project and needed a grade). I would like to repair/finish it with polymer clay(that‘s all I‘ve got at home). Is there anyway to bake the polymer clay right onto the project? If not, any suggestions on how to repair it?Thanks!: Simple answer - yes, baking at temperature called for in polymer clay directions - usually 275F. Now read the long detailed coverage of your possible problems.

Q: Dongpeng ceramics and Dongpeng special drink what relationship?: In market activities, Dongpeng ceramic earlier than Dongpeng special drink, this is a registered trademark of two different categories, is legalDongpeng ceramic brand holder is Guangdong Dongpeng ceramic Limited by Share Ltd. And Dongpeng special drink brand holder is Guangzhou Dongpeng food and Beverage Co., Ltd.

Q: My friends and I made some ceramic trivets yesterday. We took regular ceramic tiles, let the kids paint them, or did a hand or foot print. Our intention is to give them to Grandmothers for Christmas. Last night I put 1 coat of mod podge and planned on doing a 2nd coat today. As I look at it, I‘m wondering if a hot pan is going to melt the mod podge. I thought it was a sealer, but not sure. It say waterbase sealer, glue and finish. Is my idea going to work, or did I ruin it by using the wrong sealer?: I would think that if you can put a brush to it it will work out fine for you. Jenn

Q: Are ceramic knives as good as they claim? Are they measurably better than standard metal kitchen knives? Do they hold the sharpness for a long time? If not, can they be sharpened?: PROS 1.Lightweight- Ceramic material is very light weight. The lighter the weight is, the less strain on your arms and shoulders. You can rip through all you're cutting like a pro. 2. Durability - They will stay sharper for longer periods of time than stainless knives and can go years without needing to be resharpened. 3. Sharpness - The materials that make up a ceramic blade is very hard. It's the second hardest material, ranked after diamonds. After it's sharpened, it can keep its razor sharp edge and will not wear out. 4. Chemically inert - Being chemically inert means that these knives won't give your food a metallic smell or taste like steel knives will. They also will never brown your foods like steel knives can. The surface of ceramic knives will also resist germs, so they are great for people who suffer from certain allergies. 5. Pleasant - No more cries while cutting onions and cut tomatoes without crushing them. Anti-bacterial with good hygiene standard. CONS – It’s not perfect. 1.Brittleness - Hardness doesn’t mean it isn’t breakable. Ceramic knives aren’t meant to cut hard food such as frozen foods, bones, or anything that isn’t easily sliced. The blade is sharpened so thin that anything hard can put a chip on the tip. 2.Price - Ceramic knives are some little expensive compared to other high end steel knives. All ceramic knives are very high end. Alternately, some major brands (HornTide, etc.) often have sales at various stored (especially Amazon Marketplace), dropping prices on select models by as much as 60%.

Q: would it be beneficial for my tank? i have an overhead filter so should i put my ceramic rings on it or would it be bad for my fishes, corals and live rocks? thanks: Ceramic rings fall into biological filtration. You dont really need it as you have live rock which is the primary biological filtration in saltwater aquariums. But added doesnt hurt.

Q: How can the new ceramic tableware be treated before it can be used?: The first time you buy it, you can cook congee (preferably not) or soak it with vinegar (water: vinegar, 1:10 or so)

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