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

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Q:Which brand is good for ceramic cutting tools?: 2, Delisle - Germany was founded in 1818, is a high-tech engineering group in Germany, in the field of material technology has unique advantages.3 Sumitomo Sumitomo Sumitomo Electric Co., Ltd. is one of the largest integrated cutting tool manufacturers in Japan. It has more than 100 years experience in manufacturing cutting tools.4, 1862 - Sweden Sandvik in Sweden founded Santak vicken town5, KOMET - Germany is at the top of the world6 - Alzheimer - Germany7, TUNGALOY (Japan) - Japan8, MITSUBISHI - Japan9, G - grams - South Korea, Korea's largest integrated cutter manufacturer10, Jouni Mok - Denmark

Q:I recently found that there are ceramic braces?!!!! WHUT????!!! can anyone explain to me what they are?? and what the difference between Metal and Ceramic is? (hence my question): ceramic are almost invisible. you can only see the wire. Most adults have these. the metal braces are the most common type and are more effective. the are most popular on children and teens.

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Q:How does a ceramic electric heater work with no fan? I‘ve never owned one. Does it just heat up and radiate out? It seem like it would take slow to heat a room (10ftx10ft) if it has no fan.: Usually the ceramics are infa red. They radiate rather that heat by convection. The same amount of heat goes into the room either way.

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

Q:who knows a good ceramic hair straightener?: The CHI straightener its about 250.00 But if you wanna go cheap then theres one at walmart called Andis and its about 20.00.

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