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:How many kinds of ceramics are there?Such as the title: There are many varieties of ceramic products. The chemical composition, mineral composition, physical properties, and manufacturing methods of ceramics are often close to each other, without obvious boundaries. However, there are great differences in their applications. Therefore, it is difficult to sum up into several systems, and the detailed classifications are different from each other. To this day, there is no unified method of classification in the world. Commonly used are the following two categories from different angles of classification:(I) classification by usage;1, daily-use ceramics: such as tableware, tea sets, jars, altar, pots, cans, plates, plates, bowls, etc..2, art {process} ceramic: flower vase, sculpture, garden, ceramics, furnishings, etc..3. Industrial ceramics: ceramics used in a variety of industries. It is divided into the following 6 aspects:1. Building sanitary ceramics: such as tiles, drainage pipes, tiles, wall tiles, sanitary and so on;Chemical, {chemical} ceramics: acid resistant containers, pipes, towers, pumps, valves, and acid bricks, ash, etc. used in lining reactors for various chemical industries;Electrical porcelain: insulator used in power industry high and low voltage transmission lines. Bushings for motors, insulation for insulators, insulators for low-voltage appliances and lighting, insulators for telecommunications, insulators for radios, etc.;The special ceramic, special ceramic products thrown in various modern industry and advanced science and technology, high alumina ceramic, porcelain, stone magnesium titanium magnesium porcelain stone, Gao YingStone porcelain, porcelain, and lithium ferrite, metal ceramic etc..

Q:Has anyone used ceramic paint pens? I hope they are more manageable than ceramic paint + paintbrush (I‘m not so skilled at painting). Where can I find good multicolored ceramic paint pens? Like, what store? I don‘t want to buy online :(Thanks!: It tends to have the same effect on me. Leaving weather and length of ride out of the picture for now, riding requires a great deal of concentration, and THAT can be exhausting. You are constantly watching the road conditions, the traffic around you, etc. Then add to that the amount of time you're riding, the temperature, and whatever physical efforts you're making, and it can be tiring.

Q:I‘m laying ceramic tile and I‘ve just pulled up all the old linoleum which left glue residue.my question is does the concrete have to be completely clean to lay ceramic tile, the residue is pretty much smooth.: my parents just got through laying ceramic tile down about a month ago in there kitchen and they had to tear down the old floor which was carpet, eww i know, and then sand it down real good and lay down what they call becker boards b/c if not ur tile will crack and fall to pieces. I am not sure about ur situation but I would call b4 hand to be on the safe side that stuff is expensive, good luck!

Q:i have been told that the metal work faster, but how much faster i keep changing my mind do the ceramic really stain that bad? im 21 and really don't want a mouth full of metal if i can avoid it.: Metal or ceramic, neither works faster than the other. Your teeth are being moved by slowly tightening the tension. They're not going to move any faster than the tension that is applied. Go for the ceramic if you're self-conscious about the metal. But beware of anything that might stain them, like coffee, cigarettes. They tend to turn an ugly yellowish brown. Not too nice to look at.

Q:Ceramic or Titanium Plates?: Well Im a dude but Im pretty sure ceramic is the best!

Q:What do ceramic and Bone China: Of course, China is good ^_^China is the world's most recognized high-grade porcelain, Bone China in accordance with international standards, more than 25% of the herbivores containing ashes, is the green environmental protection. Compared with general ceramic firing process, content and bone carbon uniquely makes bone appear more white and delicate, transparent, light. Ceramic China originated from, but China was founded in the United Kingdom, has long been a special porcelain of the British royal family, only a gorgeous. Now, a symbol of Bone China is also the owner of the identity and status. Because the bone powder can increase the hardness and transparency on porcelain, so China can do more than ordinary porcelain thin. Put the glass in the light components observed, detailed, transparent and free of impurities for the bone china products preferred. China is a hierarchical and ceramic design, usually depends on the quality of materials, manufacturing technology and painting. The higher the level of Bone China, the higher the difficulty of the production, the finished products are more expensive.

Q:I have been given a few ceramic ducks for my yard. I don‘t want to ruin them, or, to jeopardize any critters by their placement.My questions are:1. Will full, summer, desert, sun destroy the finish on the ceramic?2. Is it safe to set one in a bird-bath . is it safe both for its finish, and the safety of bees, birds, neighbor cats that drink from it?: Well, here in Delaware (US), we don't seem to have that problem. We've barely dipped below 32 F yet! Ship us some of your snow, why don't you!!

Q:I‘m getting ceramic braces next tuesday. How many people notice them right away?And are you able to get them on the bottom teeth too? I heard that you couldn‘t but I was never told that I had to get metal ones on the bottom instead?: cermanic braces are nice! they are noticable but in pictures and stuff you cant really see them. umm my ortho told me that having ceramic braces on the bottom is not a good thing. they break if they are on your bottom ones. or sumthin on that order.

Q:I am allergic to metal braces and so my ortho suggested ceramic braces but I have a bonding on my front tooth and I‘m really cautious when it comes to my bonding. And I‘ve read that ceramic braces are really hard to remove plus it can be pretty painul and they have to sand it down or something and I told myself don‘t worry about it And my bonding will be fine but when I heard about how it is to remove ceramic braces I‘m worried even more! My ortho says I‘m allergic to metal cause I had braces before and my gums got all swollen but I don‘t even want ceramic anymore and I was thinking about getting Damon braces but aren‘t they metal to?I feel like I don‘t have anymore options! I‘m really upset about this: if your gums got swollen you may be allergic, or you just may have not kept them clean properly. If you are allergic then cermic brackets will help, if you weren't keeping them clean enough then ceramic won't make any differance. Damon brackets are metal and will be the same issue if you are allergic to the metal. Don't worrk about your bonding, it can always be redone if there is a problem and I am sure that once your teeth are straight even if the bonding needs to be redone they will look alot better than they do now. Ceramic brakcets are likely no harder to remove than metal brackets because both use the same cement, which is bonded to the tooth, and then held to the bracket by mechanical retention (dimples in the bracket base). Whenever brackets are removed the bracket comes off and the cement stays stuck on the tooth, the cement is then sanded off the tooth with little to no damage to the tooth

Q:China Cup ceramic cup and what's the difference?: The difference between Bone China and porcelain ceramics []:1, the severity of bone and bone allograft: comparison of ceramic type will be very light;2, color: China color jade jade, ceramics will pan green color3, good light permeability: China4, excellent insulation: compared with the traditional porcelain, Bone China and better insulation, drink coffee or tea has a better taste;5, more durable: because bone porcelain and porcelain of the different ingredients, can be thinner and more durable, not easy to wear and tear, bone at 180 C and 20 C water heat exchange of a crack;6, high grade Bone China is currently the only recognized species of high-grade porcelain, double the value of both use and art, is a symbol of power and status, known as the king of porcelain, Bone China on the screen to do will seem very real, very clear7, listen to the voice of the bone in hand heart, take a pen or a small stick on bone bowl will issue such as bell like sound;8, choose a large porcelain bowl, pour about finger joint first day so much water, water around the finger bowl rub, this makes a resonance like "squeak" sound.

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