High-Voltage Circuit Breakers

1 High-Voltage Circuit Breakers From kV up to 1100 kV. Siemens Energy is a trademark licensed by Siemens AG. High-Voltage Circuit Breakers | iPDF Chapter overview Customized products with the shortest delivery times from our global production network 03 Foreword 04 Modular design 05 Control 06 Monitoring 07 Interruption principles 08 Drive system 09 Development and routine testing 11 Live tank Circuit Breakers 15 Dead Tank Compact 10 Installation and commissioning 13 Dead tank Circuit Breakers 16 Disconnecting Circuit breaker High-Voltage Circuit Breakers | iPDF Chapter overview Live tank Circuit Breakers Dead tank

2 Circuit Breakers Compact switchgear Disconnecting Circuit breaker Circuit Breakers from Siemens Energy The availability of electric energy is vital for economic development and For more than 150 years we have been shaping and improving the for quality of life and the demand is constantly increasing. One of the energy world. More than 200,000 Circuit Breakers delivered to 150. necessary conditions for a reliable electric power supply is a well-func- countries prove this. tioning transmission system. 3AV1 FG Blue 145 kV Siemens Energy worldwide supports customers along the entire Sustainability is the core of our actions chain of energy conversion, with an efficient range of products, solutions and know-how for the transmission of electrical energy Siemens Energy is fully committed to supporting worldwide agreements from one source.

3 And sustainable development goals of nations and our customers. Our ambition is to achieve climate-neutrality in our own operations by 2030. Circuit Breakers are the central part of air-insulated (AIS) and gas-insu- and to cover 100% of our own electricity consumption from renewable lated (GIS) switchgear. High-Voltage Circuit Breakers are mechanical sources by 2023. Furthermore, we want to make power grids completely switching devices which connect and break current circuits (operating free of greenhouse gas emissions with highest performance and health currents and fault currents) and carry the nominal current in closed and safety standards.

4 Sustainable means for us: zero SF6 gas, zero F-mix- position. gases and zero greenhouse gases. Our Blue products with vacuum interruption and clean air insulation combine the game changing As a world market leader, Siemens Energy takes the responsibility to technology paving the way for climate neutral High-Voltage switchgear. provide Circuit Breakers which meet highest environmental, technologi- cal and economic conditions in the various countries worldwide. read more .. 3AP4 FI 800 kV pole High-Voltage Circuit Breakers | iPDF Chapter overview Basic components Type designation Modular design Few basic components leading to a high diversity of types High-Voltage Circuit Breakers from are identical and based on decades of Siemens Energy, regardless of type or manufacturing and operating experi- 3AP1 FG up to 245 kV 3AP1 FI up to 300 kV 3AP2 FI up to 550 kV.

5 Voltage range, are designed in a well ence. Our GIS switchgear range also proven modular platform concept. This includes the same interrupter units, leads to a high diversity of Circuit breaker operating mechanisms and control types and to high flexibility with regard to elements. By applying this proven various applications according to our modular design not only at our lead customers' requirements. factory in Germany, but also within our global manufacturing network, The main components, such as we are able to fulfill the highest operating mechanism, expectations regarding availability control system, and reliability at eminently competi- base frame, tive prices.

6 3AP1 DT up to 362 kV 3AP1 DTC up to 245 kV 3AP2/3 DT up to 550 kV. kinematic chain and insulator designs This modular principle can also be All construction types consist of the same basic components: current transformers (DT / DTC) found in the type definition of our pre-insertion resistors (PIR) High-Voltage Circuit Breakers . 1. Interrupter unit 3. Pillar 5. Operating mechanism cubicle 2. Post insulator 4. Control cabinet 6. Closing resistor High-Voltage Circuit Breakers | iPDF Chapter overview Control The control system includes the second- Local actuator ary technical components required for operating the Circuit breaker , which are Compact variant mainly arranged in the control cabinet.

7 The control, tripping, motor and heating In addition to the basic variant, this power supplies can be selected by the compact variant includes: customer. Two standard control variants Spring monitoring by motor run time are available depending on your require- monitoring ments. Heating monitoring (current measuring relay). Basic variant Light and socket attachment with a common Circuit breaker to facilitate The basic variant includes all control and servicing and maintenance work monitoring elements that are needed for Overvoltage attenuation operation of the Circuit breaker , including Motor Circuit breaker the following: Heating Circuit breaker Switching operation counter Special customer adapted solutions can 19 auxiliary switch contacts be offered on request.

8 (9 normally open, 9 normally closed, Cabinet with control and stored-energy spring drive mechanism 1 wiper contact). High-Voltage Circuit Breakers | iPDF Chapter overview Controlled switching Controlled contacts SensgearTM EdgegearTM. with PSD with SICEA01. Circuit breaker monitoring SensgearTM Born connected Beneficial applications While monitoring equipment can already Preventive detection of suspicious &. provide a lot of information, the focus of critical assets thereby reducing the risk SensgearTM is goes beyond common asset of unplanned outages management, it supports active manage- Early warning and push notification on ment of the grid.

9 With SensgearTM the mobile devices before it gets critical gas-insulated switchgear or Circuit Reduced manhours on equipment with Breakers transmit their current status in less costs & time for travel and SF6. near-real time via an online application. controlling at site This facilitates qualified decision-making Cost savings for unplanned SF6 leakage and optimized grid management, which repairs which results in more flexibility and more Less risk contingencies and penalties economic operation and a reduction of for SF6 emissions unplanned downtime.

10 Mechanical lifetime trending and projection Please contact your local sales or visit our Fleet coverage in a unified manner website for most recent information. Artificial intelligence powered analysis Comprehensive visualization tools to support further decision making High-Voltage Circuit Breakers | iPDF Chapter overview Vacuum interruption Self-compression Dynamic self- Clean air insulation principle principle compression principle Interruption principles Vacuum interruption principle High performance, low arc energy, and very low erosion during switching Vacuum interrupters form the backbone operations, resulting in excellent of our 3AV1 blue portfolio.