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Medium and high voltage circuit breakers
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High-voltage circuit breaker
Siemens has designed these high-quality and high-performance circuit breakers as a result of research and innovation that fits the present environmental and technological scenario....
High-voltage circuit breaker
Siemens has designed these high-quality and high-performance circuit breakers as a result of research and innovation that fits the present environmental and technological scenario. Circuit breakers connect and break the circuit in case of operating and fault currents and run the nominal current in a closed condition.
Siemens has developed a wide range of circuit breakers to exactly meet the demands of various systems in more than 140 countries. Live tank circuit breakers, dead tank circuit breakers, dead tank compact circuit breakers and disconnecting circuit breakers form a vast variety of the 90,000 circuit breakers available with exceptional performance in a high voltage range of 72.5kV to 800kV.
Siemens has developed a wide range of circuit breakers to exactly meet the demands of various systems in more than 140 countries. Live tank circuit breakers, dead tank circuit breakers, dead tank compact circuit breakers and disconnecting circuit breakers form a vast variety of the 90,000 circuit breakers available with exceptional performance in a high voltage range of 72.5kV to 800kV.
Live-tank circuit breaker / high-voltage - 75.5 - 1 425 kV | 3AP1, 3AP2
This circuit breaker has many special features including live-tank circuit breaking...
Live-tank circuit breaker / high-voltage - 75.5 - 1 425 kV | 3AP1, 3AP2
This circuit breaker has many special features including live-tank circuit breaking where the interrupter chamber finds appropriate insulation either by porcelain or any other suitable composite material. Since the voltage level is determined by the insulator's length, this circuit breaker remains at high potential.
Dead-tank circuit breaker / high-voltage - 38 - 245 kV | 3AP1
The exceptional features of the design of this dead-tank involves having a perceived quality of being created with...
Dead-tank circuit breaker / high-voltage - 38 - 245 kV | 3AP1
The exceptional features of the design of this dead-tank involves having a perceived quality of being created with an interrupter chamber which is accommodated in an earthed-metal housing. Due to this disposition, the live parts of the contact which are assembled from the housing and which has high voltage are being protected by the SF6 gas filling. The interrupter chamber with terminals that have high voltage are connected by outdoor bushings.
Magnetic recloser / vacuum / earth fault / overcurrent - 12 - 38 kV, 400 - 800 A | 3AD
Siemens has more than 30 years of experience in vacuum switching technology and is a leader in the field of digital protection technology. The 3AD recloser combines cutting-edge technology with quality engineering experience in relay protection schemes for which Siemens is known.
The Siemens 7SR controller constitutes the brains of the recloser. It comprises indicators and control elements,...
The Siemens 7SR controller constitutes the brains of the recloser. It comprises indicators and control elements,...
Magnetic recloser / vacuum / earth fault / overcurrent - 12 - 38 kV, 400 - 800 A | 3AD
Siemens has more than 30 years of experience in vacuum switching technology and is a leader in the field of digital protection technology. The 3AD recloser combines cutting-edge technology with quality engineering experience in relay protection schemes for which Siemens is known.
The Siemens 7SR controller constitutes the brains of the recloser. It comprises indicators and control elements, communication interfaces and a USB port for convenient connection of a laptop computer.
Access to the user level menus and data is protected by multi level password authentication. Along with overcurrent time protection (49 preset curves and multiple user configurable curves), it is equipped for earth fault and sensitive earth fault detection. Inrush restraint and load shedding are further protection functions that help prevent nuisance outages.
The Siemens 7SR controller offers a multitude of inputs and outputs for customer use. Additional communication modules for data transfer are available as options. Self-monitoring and measuring functions round out the profile. The Siemens 7SR controller is mounted in a cabinet, which also contains the auxiliary power supply and a battery-backed UPS unit, fuses and a general purpose outlet to power a laptop.
Siemens 3AD distribution reclosers offer dependable protection for temporary faults in overhead line networks and improve the reliability of power supply systems. The Siemens 7SR controller, the core of the system, provides a high level of protection, easy operation and high operating efficiency.
The Siemens 7SR controller constitutes the brains of the recloser. It comprises indicators and control elements, communication interfaces and a USB port for convenient connection of a laptop computer.
Access to the user level menus and data is protected by multi level password authentication. Along with overcurrent time protection (49 preset curves and multiple user configurable curves), it is equipped for earth fault and sensitive earth fault detection. Inrush restraint and load shedding are further protection functions that help prevent nuisance outages.
The Siemens 7SR controller offers a multitude of inputs and outputs for customer use. Additional communication modules for data transfer are available as options. Self-monitoring and measuring functions round out the profile. The Siemens 7SR controller is mounted in a cabinet, which also contains the auxiliary power supply and a battery-backed UPS unit, fuses and a general purpose outlet to power a laptop.
Siemens 3AD distribution reclosers offer dependable protection for temporary faults in overhead line networks and improve the reliability of power supply systems. The Siemens 7SR controller, the core of the system, provides a high level of protection, easy operation and high operating efficiency.
Live-tank circuit breaker / vacuum / medium-voltage / outdoor - 12 - 40.5 kV, 1.25 - 2.5 kA | 3AF0
Our live-tank circuit breakers 3AF0 excel in their ability to reliably switch off overhead lines. The special technical features of live-tank design...
Live-tank circuit breaker / vacuum / medium-voltage / outdoor - 12 - 40.5 kV, 1.25 - 2.5 kA | 3AF0
Our live-tank circuit breakers 3AF0 excel in their ability to reliably switch off overhead lines. The special technical features of live-tank design are, that the interrupter chamber is situated in the weatherproof porcelain or composite material insulator and is at high potential (or: live). With live-tank designs, the voltage level determines the length of the insulators for the interrupter chamber and the insulator column. Our live-tank circuit breakers 3AF0 are totally restrike-free and offer reliable operation through their spring stored-energy operating mechanism.
Dead-tank circuit breaker / vacuum / high-voltage / outdoor - 15 - 38 kV, max. 1.2 - 3 A | SDV6
In 2006, Siemens introduced the new global class dead-tank SDV6 outdoor vacuum circuit breaker with the trustworthy Siemens 3AH3 vacuum circuit breaker. Designed specifically for the U.S. ANSI market, the stationary distribution vacuum circuit breaker has passed the entire ANSI type-testing...
Dead-tank circuit breaker / vacuum / high-voltage / outdoor - 15 - 38 kV, max. 1.2 - 3 A | SDV6
In 2006, Siemens introduced the new global class dead-tank SDV6 outdoor vacuum circuit breaker with the trustworthy Siemens 3AH3 vacuum circuit breaker. Designed specifically for the U.S. ANSI market, the stationary distribution vacuum circuit breaker has passed the entire ANSI type-testing program and provides a significant increase in performance over its predecessor, the SDV4A, in a full range for three voltage classes (15 kV, 27.6 kV, 38 kV) and up to 40 kA. Each group is specifically designed to optimize space and material for the voltage class while retaining common features across the entire product line.
The distinguishing feature of SDV6 dead-tank technology is that the interrupter chambers are accommodated in an earthed metal housing. With the 3AH3 vacuum interrupter, the poles are mounted directly onto the operator. A gearbox allows for quieter operation with reduced vibration. All key components are accessible from the front for easy servicing. However, in outdoor applications maintenance is only needed at a 5 year/10,000 operations on any circuit interval, if the ANSI usual service conditions are applied.
The distinguishing feature of SDV6 dead-tank technology is that the interrupter chambers are accommodated in an earthed metal housing. With the 3AH3 vacuum interrupter, the poles are mounted directly onto the operator. A gearbox allows for quieter operation with reduced vibration. All key components are accessible from the front for easy servicing. However, in outdoor applications maintenance is only needed at a 5 year/10,000 operations on any circuit interval, if the ANSI usual service conditions are applied.
Vacuum circuit breaker / live-tank / high-voltage - 27.5 kV, 2 A | 3AF04/3AF05
The 3AF04/3AF05 OVCBs for AC traction power supplies consist of three major parts: the pole assembly, the operating mechanism box, and the supporting steel structure. For easy access, the operating mechanism box is situated inside the supporting steel frame. It features the circuit-breaker...
Vacuum circuit breaker / live-tank / high-voltage - 27.5 kV, 2 A | 3AF04/3AF05
The 3AF04/3AF05 OVCBs for AC traction power supplies consist of three major parts: the pole assembly, the operating mechanism box, and the supporting steel structure. For easy access, the operating mechanism box is situated inside the supporting steel frame. It features the circuit-breaker operating mechanism including motor, release and auxiliary switches and the control cabinet.
The actual switching is carried out by a vacuum interrupter mounted inside the weatherproof pole assembly at electrical potential (live). The two pole assemblies rest on a base frame with a common operating shaft.
The pole assemblies consist of two porcelain insulators that separate the terminal connectors from the steel structure. The upper insulator contains the vacuum interrupter: its upper end is fixed to the upper terminal connector, while its lower end allows free axial movement inside flexible connectors to connect it the lower terminal connector. Underneath the lower insulators covers the switching rod is located, which transmits the switching movement from the operating mechanism box to the vacuum interrupter.
The actual switching is carried out by a vacuum interrupter mounted inside the weatherproof pole assembly at electrical potential (live). The two pole assemblies rest on a base frame with a common operating shaft.
The pole assemblies consist of two porcelain insulators that separate the terminal connectors from the steel structure. The upper insulator contains the vacuum interrupter: its upper end is fixed to the upper terminal connector, while its lower end allows free axial movement inside flexible connectors to connect it the lower terminal connector. Underneath the lower insulators covers the switching rod is located, which transmits the switching movement from the operating mechanism box to the vacuum interrupter.
Vacuum circuit breaker / power - 12 - 52 kV, 0.4 - 4 kA
Today about 80 percent of power network operators decide in favour of vacuum switching technology.
The market share of vacuum circuit-breakers is more than 99 % in Germany.
The core component of...
The market share of vacuum circuit-breakers is more than 99 % in Germany.
The core component of...
Vacuum circuit breaker / power - 12 - 52 kV, 0.4 - 4 kA
Today about 80 percent of power network operators decide in favour of vacuum switching technology.
The market share of vacuum circuit-breakers is more than 99 % in Germany.
The core component of this switching principle is the vacuum interrupter.
As a pioneer for vacuum switching technology, Siemens contributes comprehensive know-how. Decades of experience in development and production support our position as a technological leader.
Only modern, highly automated machines and production processes are applied in our factories, with quality standards and manufacturing accuracy exceeding the demands of ISO 9001 and ISO 14001 by far.
In this way we obtain high-quality products with a long working life, guaranteeing a constantly high production quality which is reproducible at any time.
The market share of vacuum circuit-breakers is more than 99 % in Germany.
The core component of this switching principle is the vacuum interrupter.
As a pioneer for vacuum switching technology, Siemens contributes comprehensive know-how. Decades of experience in development and production support our position as a technological leader.
Only modern, highly automated machines and production processes are applied in our factories, with quality standards and manufacturing accuracy exceeding the demands of ISO 9001 and ISO 14001 by far.
In this way we obtain high-quality products with a long working life, guaranteeing a constantly high production quality which is reproducible at any time.
Vacuum circuit breaker / high-voltage / AC / outdoor - 12 kV, 50 Hz | ZW32-12
ZW32 outdoor High Voltage AC Vacuum circuit Breaker is a new...
Vacuum circuit breaker / high-voltage / AC / outdoor - 12 kV, 50 Hz | ZW32-12
ZW32 outdoor High Voltage AC Vacuum circuit Breaker is a new generation outdoor vacuum circuit breaker researched and developed recently based on the foreign advanced technology, combing the features of power industry of our country.
Automatic recloser - 12 kV, 630 A | ZW8-12C/630-20
ZW8-12C/630-20 power hanwang is ZW20-12 column on vacuum circuit breaker, FZW28F - 12 outdoor boundary vacuum load switch two products improved advanced product, with functions of manual and electric operation....
Automatic recloser - 12 kV, 630 A | ZW8-12C/630-20
ZW8-12C/630-20 power hanwang is ZW20-12 column on vacuum circuit breaker, FZW28F - 12 outdoor boundary vacuum load switch two products improved advanced product, with functions of manual and electric operation....
Vacuum circuit breaker / high-voltage / AC / indoor - ZN63S-24(VSI+)
VSm-24 indoor AC high voltage vacuum circuit breaker, equipped with permanent magnet mechanism,...
Vacuum circuit breaker / high-voltage / AC / indoor - ZN63S-24(VSI+)
VSm-24 indoor AC high voltage vacuum circuit breaker, equipped with permanent magnet mechanism, can be widely used in power plant, substation and various monitoring and application environments, such as power supply system of chemical plant, steel plant, automatic factory, aero plane factory, aero plane factory and large-scale buildings.
Vacuum circuit breaker / AC / high-voltage / indoor - 50 Hz, 12 kV | ZN63S-12(VS1)
ZN63S-12(VSI+) indoor high voltage AC vacuum circuit...
Vacuum circuit breaker / AC / high-voltage / indoor - 50 Hz, 12 kV | ZN63S-12(VS1)
ZN63S-12(VSI+) indoor high voltage AC vacuum circuit breaker is a kind of indoor high voltage switchgear of 3-phase AC. 50Hz, with rated voltage of equipment of industrial and mineral enterprises.
Vacuum circuit breaker / AC / high-voltage / indoor - ZN85A-40.5 (3AV7)
ZN85A-40.5(3AV7) indoor high voltage...
Vacuum circuit breaker / AC / high-voltage / indoor - ZN85A-40.5 (3AV7)
ZN85A-40.5(3AV7) indoor high voltage...