一 : ZN63-12真空断路器
ZN73-12(VS1)
适用范围
ZN73-12型户内高压交流真空断路器(以下简称断路器)是三相交流50Hz，额定电压为12kV的户内装置，适用于投切各种不同性质的负荷及频繁操作的场合，可供工矿、企业、发电厂设备及变电站电气设施的保护和控制之用。(www.61k.com)
断路器符合GB1984-2003、JB3855-2004、GB/T11022-1999等国家标准及有关规定。型号及其含义
Z N 73 - 12 /
□ - □
额定短路开断电流(kA)
额定电流(A)
额定电压(kV)
设计序号
户内
真空断路器
使用环境条件
1、 周围空气温度：上限不超过+40℃；下限不低于-10℃;
2、海拔：海拔高度不超过1000m；
3、湿度：相对湿度：日平均值不大于95%，月平均值不大于90%；饱和蒸汽压：日平均值不大于 2.2×10-3MPa，月平均值不大于1.8×10-3MPa。在高湿度期内温度急降时，允许有凝露。
4、地震烈度：地震烈度不超过8度；
5、周围空气应不受腐蚀性或可燃性气体、水蒸汽等明显污染。
6、使用场所无经常性剧烈振动。
注：用户若需超上述正常使用条件的断路器，可与我公司协商订制。
www.wooide.com
111
zn63 ZN63-12真空断路器
ZN73-12(VS1)型户内高压交流真空断路器
www.wooide.com
112上海万上机电科技有限公司ＳＨＡＮＧＨＡＩ ＷＯＯＩＤＥ ＥＬＥＣＴＲＩＣＡＬ ＴＥＣＨＮＯＬＯＧＹ ＣＯ．，ＬＴＤ．主要技术参数
+-+-表1注：*短路开断电流20、25、31.5kA时，t=0.3s, t'=180s。(www.61k.com]短路开断电流40kA时，t=180s，t'=180s。301135798232829464202647
242522744TQQFS1
3341V3V2HQ3442Y8Y7Y9KOMS2231412113151719183338391214136453435374843Y1：闭锁电磁铁 Y7~Y9：过流脱扣电磁铁 KD：机构内部防跳继电器 HQ：合闸电磁铁 S2：闭锁电磁铁行程开关 M：储能开关 S1：储能用微动开关 QF：断路器主触头的辅助开关 TQ：分闸电磁铁图1 固定式断路器内部电气原理图
zn63 ZN63-12真空断路器
ZN73-12(VS1)
型户内高压交流真空断路器
图 2 抽出式断路器内部电气原理图(有防跳、闭锁、过流)
断路器机械特性参数见表2。(www.61k.com)
表2
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zn63 ZN63-12真空断路器
ZN73-12(VS1)
型户内高压交流真空断路器
www.wooide.com
114上海万上机电科技有限公司ＳＨＡＮＧＨＡＩ ＷＯＯＩＤＥ ＥＬＥＣＴＲＩＣＡＬ ＴＥＣＨＮＯＬＯＧＹ ＣＯ．，ＬＴＤ．操动机构技术数据见表3。[www.61k.com）
外形及安装尺寸
M18A向AA
zn63 ZN63-12真空断路器
ZN73-12(VS1)
注：1、手车在柜中行程为200mm；
2、括号内数字为额定电流大于1600A的断路器外形尺寸
图2 手车式断路器外形尺寸图
订货须知
订购断路器时，需注明：
1、断路器名称、型号、规格及订货数量；
2、断路器额定电压、额定电流及额定短路开断电流；
3、额定操作电压、是否带防跳、闭锁功能；
4、备品、备件的名称及数量；
5、用户若有其它特殊要求，可经协商后，按双方签订的协议或合同供货。（www.61k.com]
扩展：zn63a真空断路器 / zn63真空断路器 / zn63 12
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115
扩展：zn63a真空断路器 / zn63真空断路器 / zn63 12
二 : ZN63-12真空断路器
ZN73-12(VS1)
适用范围
ZN73-12型户内高压交流真空断路器(以下简称断路器)是三相交流50Hz，额定电压为12kV的户内装置，适用于投切各种不同性质的负荷及频繁操作的场合，可供工矿、企业、发电厂设备及变电站电气设施的保护和控制之用。
断路器符合GB1984-2003、JB3855-2004、GB/T11022-1999等国家标准及有关规定。型号及其含义
Z N 73 - 12 /
□ - □
额定短路开断电流(kA)
额定电流(A)
额定电压(kV)
设计序号
户内
真空断路器
使用环境条件
1、 周围空气温度：上限不超过+40℃；下限不低于-10℃;
2、海拔：海拔高度不超过1000m；
3、湿度：相对湿度：日平均值不大于95%，月平均值不大于90%；饱和蒸汽压：日平均值不大于 2.2×10-3MPa，月平均值不大于1.8×10-3MPa。在高湿度期内温度急降时，允许有凝露。
4、地震烈度：地震烈度不超过8度；
5、周围空气应不受腐蚀性或可燃性气体、水蒸汽等明显污染。
6、使用场所无经常性剧烈振动。
注：用户若需超上述正常使用条件的断路器，可与我公司协商订制。
www.61k.com
111
ZN73-12(VS1)型户内高压交流真空断路器
www.61k.com
112上海万上机电科技有限公司ＳＨＡＮＧＨＡＩ ＷＯＯＩＤＥ ＥＬＥＣＴＲＩＣＡＬ ＴＥＣＨＮＯＬＯＧＹ ＣＯ．，ＬＴＤ．主要技术参数
+-+-表1注：*短路开断电流20、25、31.5kA时，t=0.3s, t'=180s。短路开断电流40kA时，t=180s，t'=180s。301135798232829464202647
242522744TQQFS1
3341V3V2HQ3442Y8Y7Y9KOMS2231412113151719183338391214136453435374843Y1：闭锁电磁铁 Y7~Y9：过流脱扣电磁铁 KD：机构内部防跳继电器 HQ：合闸电磁铁 S2：闭锁电磁铁行程开关 M：储能开关 S1：储能用微动开关 QF：断路器主触头的辅助开关 TQ：分闸电磁铁图1 固定式断路器内部电气原理图
ZN73-12(VS1)
型户内高压交流真空断路器
图 2 抽出式断路器内部电气原理图(有防跳、闭锁、过流)
断路器机械特性参数见表2。
表2
www.61k.com
113
ZN73-12(VS1)
型户内高压交流真空断路器
www.61k.com
114上海万上机电科技有限公司ＳＨＡＮＧＨＡＩ ＷＯＯＩＤＥ ＥＬＥＣＴＲＩＣＡＬ ＴＥＣＨＮＯＬＯＧＹ ＣＯ．，ＬＴＤ．操动机构技术数据见表3。
外形及安装尺寸
M18A向AA
三 : 现代重工HVF真空断路器
现代重工 现代重工HVF真空断路器
HYUNDAI HEAVY INDUSTRIES ELECTRIC, Striving for the better future hand in hand. . . . . .9 200017600072.5~800kV SF6 C-GIS MCCB MSGIS0.4kV~40.5kV VCB MCB40.5kV SF6 ACB ATS 197721HYUNDAI HEAVY INDUSTRIES (CHINA) ELECTRIC CO.,LTD. is an independent corporation, built by HYUNDAI HEAVY INDUSTRY CO., LTD. locating in No.9 Hyundai Road, Xinba Scientific and Technologic Zone, Yangzhong city, Jiangsu Province, which covers an area of 170,000m2. The total investment is 60,000,000 while register capital 20,000,000, and HYUNDAI HEAVY INDUSTRY is responsible for HYUNDAI HEAVY INDUSTRY (CHINA) product technology. Main manufacture and testing facilities are imported from America, Italy, Japan, Korea, Sweden, which ensure production quality and immediate delivery. There are three workshops: medium voltage CB workshop, HV CB workshop, SWGR workshop. Main products: 72.5~800kV SF6 GIS, 0.4kV~40.5kV Switchgear, 40.5kV SF6 C-GIS, marine switchgears and consoles, VCB, ACB, MCCB, MS, MCB, ATS and so on. HYUNDAI HEAVY INDUSTRY, Electro Electric Systems, world-known manufacturer in electrical equipment, was founded in 1977. Its top production widely spread in the world, including America, Canada, Europe, Australia, Asia and Africa. Leading the 21st current, HYUNDAI HEAVY INDUSTRY (CHINA), with sincere love and persistent will, will infinitely research and develop new top products to satisfy our customers with advanced technology and quality. For the better future, we will devote ourselves to build a global electric leader.
现代重工 现代重工HVF真空断路器
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现代重工 现代重工HVF真空断路器
DescriptionHVFHYUNDAI's HVF series vacuum circuit breakers are three-pole units designed for use in medium voltage indoor switchgears.ISO9001 IEC GBThe breakers, including vacuum interrupters, are manufactured and fully tested according to IEC & GB standards and other related standards by HYUNDAI in ISO 9001 certified facilities.12 kV 40.5 kV50 kA 31.5 kA4000 A 3150 ABased on the advanced vacuum principle, the breakers retain high dielectric strength with only a small contact gap and have a greatly extended service life with maintenance-free features.Greatly extended service lifetimeHVF 30,000 20,000 Rugged in construction with a minimum of moving parts, the HYUNDAI HVF vacuum circuit breaker operating mechanism features reduced maintenance requirements, providing a long life expectancy of 30,000 operations. Because of the small amount of contact erosion, contact life is increased to 20,000 operations for the rated normal current.This involves simple jobs carried out by the customer's personnel with short servicing times and corresponding downtimes and also long operation periods between servicing. Maintenance is confined to lubricating the operating mechanism. The vacuum interrupters and their supports need not be serviced.No contact degradationMaintenance-freeContact resistance is not effected significantly by switching operations and remains constant with the help of applied contact pressure. Additionally, the contacts cannot be oxidized. Moisture and contamination residues cannot form on contacts within the hermetically sealed vacuum interrupter. As a result, contacts remain metallically clean, and dielectric strength at the open contact gap is kept in good condition.The circuit breakers require little maintenance. In fact, only the parts subject to normal wear and aging must be serviced to ensure fully reliable operation.V acuum Circuit Breaker(12 kV 31.5 kA 1250 A) 1 HVF Fig. 1 HVF vacuum circuit breaker (12 kV 31.5 kA 1250 A)(40.5 kV 31.5 kA 1250 A) 2 HVF Fig. 2 HVF vacuum circuit breaker (40.5 kV 31.5 kA 1250 A)0 2 HVF
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现代重工 现代重工HVF真空断路器
ApplicationsSwitching of overhead transmission lines and cablesHVF IEC 62271-100 GB1984 The relatively small capacitive currents of the overhead transmission lines and cables under no-load are safely interrupted without reignition and thus without overvoltage development.HVFSwitching of capacitorsThe vacuum circuit breakers are particularly suitable for switching capacitive circuits. They are capable of switching capacitors up to the highest bank ratings without restrike and thus without overvoltages occurring. Capacitive currents of up to 400 A can generally be interrupted. When capacitors are connected in parallel, currents which have the same level as short-circuit currents can occur which, due to their high rate of rise, can cause damage to the system components. Making currents up to a peak value of 10 kA is permissible.O-0.3S-CO-3min-CO ()400ASwitching unloaded transformersBy using special contact materials, the chopping current of the vacuum circuit breakers is only 2 A to 5 A. This means that no dangerous overvoltages arise when unloaded transformers are disconnected. 2A 5A10kASwitching of motorsHYUNDAI HVF vacuum circuit breakers can be used economically for controlling motors with their high number of switching operations at rated normal currents in conjunction with high-voltage motors. If small high-voltage motors are shut down during start-up, switching surge may occur. This affects high-voltage motors with a starting current of up to 600 A. The level of these overvoltages can be reduced to safe values by means of surge limiters.HVF600A(TRV), 10kV/μsInterruption of short-circuit currents with very high rate of rise of TRVThe faults immediately behind transformers, generators, or current-limiting chokes may cause full short-circuit current development. The rate of rise of transient recovery voltage is predictable up to 10 kV/ μs or even higher when fault occurs behind chokes. This hostile condition also can be easily handled by the vacuum circuit breakers.Applicable standardsHYUNDAI HVF vacuum circuit breakers fully meet all requirements of IEC 62271-100 and GB1984.Rapid load transfer, synchronizing & operating dutyWith its consistent short closing and opening times, the HYUNDAI HVF series is especially beneficial in load transfer from one circuit to another without interruption of service. This high-speed operation synchronizes the systems so that they are parallel at the moment of contact closure. According to the relevant standards and breaker types, tests were carried out for the following operating duties: CO-15 S-CO O-3 min-CO-3 min-CO O-0.3 S-CO-3 min-CO (for auto-reclosing)3 HVF Fig. 3 HVF vacuum circuit breakerHVF03V acuum Circuit Breaker
现代重工 现代重工HVF真空断路器
Arc-Quenching System
20V200V
e
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e
B
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HVF
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The maximum arcing time for the last pole to clear istherefore only up to 15 ms.
The metal vapor arc discharge can only be maintainedif a certain minimum current flows.
A current that does not attain this level can bechopped prior to current zero.
This chopping current must be kept to a minimum inorder to prevent build-up of unduly high overvoltageswhen inductive circuits are switched.
The geometry and size of the contact are designeddifferently according to breaking current and interruptertype.
Axial magnetic field contact
Axial magnetic field causes the arc not to beconstricted even at high current value.
Therefore, the stress on the disc-shaped contactsurfaces is uniform and any melting is avoided.
The arc for all conventional arc-quenching methodsmust be cooled even before the contacts havereached the minimum quenching distance and beforethe arc energy.
The arc drawn in the vacuum breaker, on the otherhand, is not cooled since the metal vapor plasma ishighly conductive and the resulting arc voltage onlyattains values between 20 V and 200 V.
For this reason and because of short arcing times, thearc energy developed in the breaker is very small. This also accounts for the long electrical life of thevacuum breakers.
现代重工 现代重工HVF真空断路器
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Vacuum - Circuit Breaker: 20 ~ 200 V SF6- Circuit Breaker : 500 ~ 1000 VMin. Oil - Circuit Breaker: 1500 ~ 3000 VAir - Circuit Breaker
: 1500 ~ 3000 V
1
[Table 1]Arc voltage of various CB types
er
kaert BcuiriC muucaVHVF 05
现代重工 现代重工HVF真空断路器
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11
22
DC24 VDC48 VDC60 VDC110 VDC125 VDC220 VAC110 VAC220 V33
DC24 VDC48 VDC60 VDC110 VDC125 VDC220 VAC110 VAC220 V44
DC24 VDC48 VDC60 VDC110 VDC125 VDC220 VAC110 VAC220 V55
C
D5NO+5NC7NO+7NC1.0m1.0m
66
L
::::6
DC24 VDC48 VDC60 V
AC110 V AC220 V
Vacuum Circuit BreakerDC110 VDC125 VDC220 V
06HVF
现代重工 现代重工HVF真空断路器
C5NO+5NC & Control Jack leaded out from breaker body with lead cable of 1.0 m7NO+7NC & Control Jack leaded out from breaker body with lead cable of 1.0 m
6
6th order no. suffix (position switch & others)
V2nd shunt release (:order no. for control voltage as shown below)Under voltage release (:order no. for control voltage as shown below)Lockout relay (:order no. for control voltage as shown below)Varistor module (:order no. for varistor)Special design or accessories
Order no. for control voltage of 6th order no. suffix
DC24 VDC48 VDC60 V7AC110 V 9AC220 V
DC110 V
DC125 V
DC220 V
Vacuum Circuit Breaker
HVF 07
Detailed outline drawings will be submitted upon request.
现代重工 现代重工HVF真空断路器
现代重工 现代重工HVF真空断路器
现代重工 现代重工HVF真空断路器
HVF
8
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HVF
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HVF
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Operating mechanism
HVF
HVF circuit breakers have motor-spring stored energymechanisms of the same design.
They consist of the spring-charging mechanism, closingand trip spring, motor, solenoids, auxiliary switches,spring-charged signal, and on/off indicator, as in thestandard version.
Depending on the intended switch functions, theoperating mechanism can be supplemented by tworeleases: a lockout, a cut-out switch, a limit switch forclosing the spring-charged signal, electrical local closing,and longer auxiliary switch.
The released closing spring is automatically recharged bythe motor and capable of the switching sequences "pen-close-open", which is required when unsuccessful auto-reclosing operation is attempted.
The vacuum interrupter is mounted rigidly in the insulationframe and supports so that it can withstand forces arisingfrom switching operation and contact pressure.
When closed, the necessary contact pressure isestablished by the contact pressure spring and theatmospheric pressure.
The contact pressure spring automatically compensatesfor the arc erosion, which is very small.
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Vacuum Circuit Breake
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r
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10
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HVF
现代重工 现代重工HVF真空断路器
Construction & Operations10 11 23 24 14 12 13 20 22 34 15 33 21 32 36 3516183117199 HVFFig. 9 Operating mechanism for HVF vacuum circuit breaker.10 : 11 : 12 : 13 : 14 : 15 : 16 : 17 : 18 : 19 : 20 : 21 : 22 : 23 : 24 : 31 : 32 : 33 : 34 : 35 : 36 :10: Housing Box 11 : Gear Box 12: Closing Spring 13: Trip Spring 14: Link 15: Closing Bar 16: Breaker Shaft 17: Dash Pot 18: Counter 19: On / Off Indicator 20: Spring Charged Indicator 21: Closing Button 22: Trip Button 23: Name Plate 24: Manual Charging Operation Hole 31: Motor 32: Closing Solenoid 33: Trip Solenoid 34: Limit Switch 35: Anti-Pumping Contactor 36: Auxiliary Switch210HVF25NO+5NC C 7NO+7NC D1.0m 1.0m250V AC, DC 10A 30A 2A/DC220V, T=20msV acuum Circuit Breaker HVF11
现代重工 现代重工HVF真空断路器
The following versions are available:
5NO+5NC & wired connector which is leaded out frombreaker body with lead cable of 1.0m (C type).7NO+7NC & wired connector which is leaded out frombreaker body with lead cable of 1.0m (D type).Rating of auxiliary contacts
Operating voltage: Max. 250 V AC, DCContinuous thermal current: 10 AMaking current: 30 A
Switching capacity: 2A at DC220 V, T=20 ms
2
50
Vacuum Circuit Breake
When adopted trip time 50 ms solenoid
12HVF
现代重工 现代重工HVF真空断路器
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Service Life
5,00010
30,000(20,000
11-1~44
HYUNDAIvacuum circuit-breakers are easy to maintain.
This means that maintenance requires only simple procedures be carried out by the customer's staff anddowntime caused by maintenance is short. In addition, the interval between maintenance operations is long.
Two criteria determine when a minor inspection is required: 5,000 mechanical make-break operations or anoperating time of ten years.
Very little maintenance work is required since all that is needed is lubrication of the drive and cleaning of theinsulation parts.
The vacuum interrupters with their supports are maintenance-free.
After 30,000 mechanical make-break operations or a specific number of operations in combination with thecurrents switched (for example 20,000 times the rated normal current), the reakers require major inspection.
Fig. 11-1~4 and Tables 4 show the lifetime of HYUNDAI vacuum circuit breakers as a function of the breakingcurrent.
现代重工 现代重工HVF真空断路器
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4 HVF
[Table 4]Determination of load characteristics numbers for HVF vacuum circuit breakers.
er
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a
e
Br
it
cu
riC muuca
V14HVF
现代重工 现代重工HVF真空断路器
-25
4+40
+40IEC
GB
13
H
YUNDAIat ambient temperatures between -25
and +40
ambient temperature of +40
considered.
Fdifferent ambient temperatures.
The diagram, however, is applied only to open-typeswitchgears.
13
Fig. 13 Vacuum circuit breaker, load characteristics.
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现代重工 现代重工HVF真空断路器
Optional AccessoriesUndervoltage release with attachmentUndervoltage releases are used to open the circuit breakers automatically in the event that the operating voltage drops below a specified level. They can be connected to voltage transformers, but they are also available for DC operation. The deliberate tripping of the undervoltage release is accomplished by means of an opening contact in the control circuit. If the coil is de-energized by short-circuiting, built-in resistors limit the short-circuit current.Varistor moduleWhen the motor, solenoid, and shunt releases are switched in DC circuits, it is possible for surges to be produced which might cause great damage to solid-state devices. By additionally connecting the varistor module to the motor and solenoid, the damage can be effectively eliminated.Capacitor trip unitIt is recommended that the capacitor trip unit be employed for a trip operation of the breaker when the control source is lost in the AC control system.Electrical lockout with attachmentThe lockout relay is an electromagnetic device actuated by DC or AC voltage for the voltage-independent interlocking of switching devices. It enables the operation of circuit breakers at a voltage of 85% of the rated voltage, and lock operation at a voltage of 80% of the rated voltage. The lockout relay actuates the closing solenoid or the ON button mechanically. A lockout relay is used in circuit breakers with indirect releases. As a result, the breaker can be closed by release of the lockout only when the undervoltage release is energized, ensuring proper closing operation. Unsuccessful attempts at closing are prevented if the auxiliary voltage has failed fully or partially. Since the undervoltage release does not latch if the auxiliary voltage is insufficient or has failed, a circuit breaker not equipped with a lockout relay would close and immediately reopen unnecessarily.85% 80%ON2nd shunt release with attachment2nd shunt releases are used to open the circuit breaker automatically with appropriate protective relays or by deliberate electrical or mechanical action. They are designed for connection to external voltage (AC or DC); however, in special cases they may also be connected to voltage transformers.Vacuum checkerThe portable vacuum checker can be used for checking the vacuum degree.Order no.Rated input voltage Charging voltageHVFS-T7AC 110 V DC 145 VHVFS-T9AC 220 V DC 290 VOrder no.Rated input voltage Rated output voltage DimensionsHAFS-VC9AC 220 V AC 11 kV / 22 kV W200 L350 H1761 6 HVFV acuum Circuit Breaker
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现代重工 现代重工HVF真空断路器
12kV 31.5kA 2000A 12kV 40kA 2000A
HVF HVF
(mm)(mm)
Vacuum Circuit Breaker
HVF 17
现代重工 现代重工HVF真空断路器
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12kV 31.5kA 2000A 12kV 40kA 2000A 12kV 50kA HVF
HVF HVF
(mm)
(mm)(mm)
现代重工 现代重工HVF真空断路器
40.5kV HVF
HVF 19Vacuum Circuit B
r
e
a
k
e
r
现代重工 现代重工HVF真空断路器
2. For the AC control circuit, the rectifier should be attached on the standard circuit.
Vacuum Circuit Breaker
20HVF
现代重工 现代重工HVF真空断路器
2. For the AC control circuit, the rectifier should be attached on the standard circuit.
HVF 21Vacuum Circuit Breaker
现代重工 现代重工HVF真空断路器
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Type no. suffix in the square
06
shall be listed as shown in the line of rated current.
Vacuum Circuit Breaker
22HVF
现代重工 现代重工HVF真空断路器
现代重工 现代重工HVF真空断路器
现代重工 现代重工HVF真空断路器
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Jiangxi Beida Technical zone
Nanjing Tianti Systems engineering project control Ltd.
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Zhejiang Hisence air-condition Ltd.
Jiangsu Hengsheng chemical fertilizer Ltd.
Xuzhou Mining bureau general hospital
Panzhihua Steel Ltd.
Yantai Wanhua Chlorine alkali factoryNorthward rerouting of southern river,
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Ying Huang Ji Qing project
Laiyang Steel Ltd.
Huisheng(Nanjing) chemistry Ltd.
West petroleum pipeline of China
Tianjin Thermoelectricity company
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Shenhua Chymistry of Shandong Shida
Technical group
Shandong Guoda Gold Co., Ltd.
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Xi'an Defense industry Technical school
Xi'an Airplane international air manufacture Ltd.
Dalian Shipbuilding heavy industry Ltd.
Shanghai foreign language university attachedwest outside foreign language institute
Jiangsu Yangzijiang Shipyard
Qinghai Qiaotou Aluminum electricity Ltd.Chinese People's Liberation Army rear service
engineering college student apartment
CNG
Huayou Jingyang CNG project
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Bingzhou Aircraft carrier power distribution project
E'erduosi hospital
Shanghai Sanchunhui Xiu Park
Chongqin Sanxia Technical spinning and weaving Ltd.
0212
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Hefei Underground civil air defense project
现代重工 现代重工HVF真空断路器
HHI-LCB-VCB-001 2007.8
9
0511-88420266
88420366 (0511-88420288 (
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0511-88420388
8008281666
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Add: No.9 Hyundai Road,Xinba Scientific and Technologic Zone,Yangzhong,Jiangsu,P.R.ChinaTel: 0511-88420266 88420366 (General Affairs)0511-88420288 (Sales and Marketing)Fax: 0511-88420388Client Service Center: 8008281666Zip: 212212Http://www.hhi-cn.comE-mail:info@hhi-cn.comSubject to change without prior notice
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四 : 真空断路器的概述介绍
真空断路器 -概述介绍 “高压真空断路器”因其灭弧介质和灭弧后触头间隙的绝缘介质都是高真空而得名；
.其具有体积小、重量轻、适用于频繁操作、灭弧不用检修的优点，在配电网中应用较为普及。发展简史 1893年，美国的里顿豪斯提出了结构简单的真空灭弧室，并获得了设计专利。1920年瑞典佛加公司第一次制成了真空开关。1926年美国索伦森等公布的研究成果也显示了在真空中分断电流的可能性，但因分断能力小，又受到真空技术和真空材料发展水平的限制，尚不能投入实际使用。随着真空技术的发展，50年代美国才制成第一批适用于切断电容器组等特殊要求的真空开关,分断电流尚停在4千安的水平。由于真空材料冶炼技术上的进步和真空开关触头结构研究上所取得的突破，1961年，美国通用电气公司开始生产15千伏、分断电流为12.5千安的真空断路器。1966年试制成15千伏、26千安和31.5千安的真空断路器，从而使真空断路器进入了高电压、大容量的电力系统。80年代中期，真空断路器的分断能力已达100千安。中国从1958年开始研制真空开关，1960年西安交通大学和西安开关整流器厂共同研制成第一批6.7千伏、分断能力为600安的真空开关;随后又制成10千伏、分断能力为1.5千安的三相真空开关。1969年华光电子管厂和西安高压电器研究所制成了10千伏、2千安单相快速真空开关。70年代以后，中国已能独立研制和生产各种规格的真空开关。
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