Siemens Power Transmission & Distribution Siemens manufactures and markets power transmission and distribution equipment and energy service solutions for electric utilities, independent power producers, co-generators and other energy-intensive industries. Please choose a link for more detailed information: Medium Voltage Switchgear Medium Voltage Motor Controllers Type SDV4 Breakers SF6 Power Breakers Circuit Switchers Reclosers Voltage Regulators Protective Relays Substation Automation Power System Controls Power Transformers Medium Voltage Switchgear The Siemens Raleigh Plant manufacturers the GM (5-15kV) and GM38 (23-38kV) switchgear lines that are widely used in utility applications, industrial plants and commercial buildings, as well as cogeneration installations. The GM Metal-Clad equipment is available in a full range of ANSI ratings from 5kV through 15kV. This design provides horizontal drawout vacuum circuit breakers in a two-high stacked design with flexible configurations and high durability. The GM38 Metal-Clad equipment meets the needs for switchgear applications from 23kV through 38kV. The horizontal drawout vacuum circuit breakers occupy the lower cell, with VT's and drawout fuses available in the upper cell. The vacuum interrupters are uniquely designed and developed to provide the lowest chopping currents in the industry. The switchgear structure with its white interior cells enhances visibility and safety. The horizontal drawout vacuum circuit breakers are an integrated design, with dielectric, thermal and interruption integrity built directly into the basic design. Medium Voltage Motor Controllers, Series 81000 Siemens is the largest manufacturer of motors worldwide. Siemens' application engineering staff is well-versed in NEMA and above NEMA motor and control integration requirements. Siemens applies the "right" control scheme to give you the "right priced" solution. The Series 81000 MVC is a modular design consisting of one or more starters, each with an isolation means, three current limiting fuses, and a vacuum contactor, all housed in a freestanding, front only, sheet metal enclosure. Safety is its key attribute. Fuse and fuse holders are installed on the rackable, rollout contactor assembly. The Series 81000 MVC is now offered in a new stationary contactor design. The stationary starters can be configured in a reduced height (75") and reduced width (24") stand-alone enclosure facilitating a smaller foot print and reduced shipping cost. Available in "three-high" configuration without de-rating. The Series 81000 MVC allows the user to combine vacuum starters, latched contactors, and load break switches in one convenient line-up. The user can also connect directly to Siemens GM Medium Voltage Switchgear without additional transition sections. Type SDV4 Outdoor Distribution Breakers The SD4 breaker is a vacuum-insulated, five cycle, three pole stored energy operated circuit breaker available in 15.5kV to 27kV voltage ratings. SDV4 technology is proven in thousands of installations around the world. Siemens advanced interrupting technology means long operating life with no maintenance. Combine with a Siemens Siprotec 4 Bay Controller Relay for a complete package solution. SF6 Power Breakers Siemens has developed a family of dead-tank SF6 power circuit breakers from 15 to 242 kV. Designated the SPS2, the breaker entered service in October 1997. The SPS2 features a second generation arc-assist interrupter and an advanced spring operator. Both components are identical to those used globally in the Siemens live tank breakers and require virtually zero maintenance. The SPS2 is tested to both ANSI and IEC standards. The breaker has been tested to 6,000 mechanica l operations, 3,000 operations at 6 kA. The SPS2 breaker is produced at the Siemens Power Transmission and Distribution plant in Jackson, Mississippi, USA. This state-of-the-art facility has a quality system certified to the requirements of the ISO 9001 Standard. Factory assembly and testing eliminates the need for any field adjustments. Circuit Switchers Siemens Type CPV2 Circuit Switcher is ideal for applications that do not require reclosing. The CPV2 model provides space-saving protection at an economical cost. Operation of the CPV2 is controlled by a FA2 Spring Operator, which is similar to the operating mechanism used in the SPS2 Circuit Breaker. There are several reasons to specify and install the CPV2 Circuit Switcher: excellent design, robust construction, simple installation, minimal maintenance, and low installed cost. The Siemens Type CPV2 Circuit Switcher device can switch and protect transformers, lines, cables, shunt capacitor banks, and shunt reactors. It also provides a low cost medium fault interrupting device. It has a consistent and fast operating time of 3 cycles with a high interrupting capability of up to 40 kA. Each pole unit is equipped with a manifold which incorporates a fill valve, a pressure gauge and rupture disc. This manifold is located at the lower end of the pole unit, connected to the cover assembly by a union coupling. The coupling allows the pressure gauge to be rotated by the user to provide the most satisfactory view from the ground. The pressure gauge has a color coded face for ease of reading from a distance. A label showing a picture of the gauge and an operating pressure range versus ambient temperature is located on the door of the control cabinet. As an option, the Siemens Type CPV2 Circuit Switcher can be equipped with a temperature compensated pressure switch to automatically monitor the status of the SF6 gas in the pole units. This switch with gauge is located inside the contro l cabinet, and has two sets of contacts. One set of contacts provides an alarm indication when the gas pressure approaches within 5 psi of the lockout value. The other set prevents operation if gas pressure falls to a level at which current interruption is not assured. The temperature compensating feature of the switch avoids alarms and lockouts due to normal pressure variations associated with ambient temperature changes. Reclosers Centurion Reclosers uses vacuum interrupters that provide safe and efficient fault interruption. Environmentally friendly, these vacuum interrupters reduce maintenance and provide for long contact life. Additionally, they meet or exceed the requirements of ANSI C37.60. The vacuum interrupters are housed in epoxy bushings, eliminating the need for oil or gas insulation. The lightweight and portable epoxy insulation effectively reduces installation costs and eradicates EPA spill and leak issues. The control cabinet is made of 316 stainless steel, a corrosive-free material that cuts lifecycle costs and eliminates corrosion concerns. Integral voltage sensors provide voltage detection as well as voltage and power monitoring. A large directly-connected pointer, easily seen from up to 330 feet away, highlights the reclosers contact position. A hook stick can be used to manually trip and lock out the reclosers from the ground. The reclosers can also be locked out electrically using toggle switches on the operator control panel. The Control connects to the Switch Control Entry Module (SCEM). This SCEM card has EEPROM on board that contains all relevant Reclosers calibration data, ratings and number of operations of the vacuum interrupter. The SCEM card also provides the first stage of electrical isolation and shorting electronics to short the CTs in the event the control cable is disconnected while current is flowing in the primary path. Integral communication equipment combined with a user-supplied transceiver allows remote control and remote monitoring of the centurion Reclosers. Together, the Reclosers and control comprise a highly efficient, technologically sound, remote operable, Intelligent Electronic Device. Voltage Regulators Siemens has long been a leader in the design and manufacture of voltage regulators. In 1933, Siemens' partner, Allis-Chalmers, pioneered the field of step voltage regulators. Since that time, Siemens has maintained technical leadership in the development of an extensive line of step voltage regulators and accessories. Siemens step voltage regulators provide utility companies and other industrial customers with the capability to maintain constant line voltage under varying load conditions. The regulators, coupled with tap-changer control panels also allow users to control the voltage during periods of peak and reduced demand to optimize operating conditions. Siemens manufactures a complete line of single-phase (tpe JFR) and three-phase (type SFR) regulators. In addition, Siemens designs and manufactures a complete line of voltage-regulator accessories that enhance the operation and efficiency of the regulators. Click any of the categories below for details about the regulators and accessories. Type SFR Three-Phase Regulators, introduced in 1958, has become the standard of the industry. Refined and improved over the years, the SFR voltage regulator has proven its reliability and durability in the toughest environments. . Protective Relays Siemens have been designing and manufacturing digital (numerical) relays since 1985. Over 100,000 of these relays have been sold world-wide (many of which are in the USA), and are successfully operating in all the various climatic conditions. The 14 years of experience gained together with our proven expertise ensure that Siemens will remain the leader in numerical relaying. Siemens has the most complete product range of numerical relays on the market. The relays are suitable for generation, transmission, distribution and industrial applications. All Siemens relays have a front communications port RS-232 and optional rear communications port, RS-232 or fiber optic. 7SJ600 and 7RW600 have rear communication capability RS-485. Substation Automation The Substation Automation Division of Siemens Power Transmission and Distribution (SPT&D) is dedicated to providing advanced automation products and solutions to utility customers in the United States and international export markets. Siemens is a world leader in the supply of Integrated Substation and Power Automation solutions. Our experience over the last 5 years in the delivery of over 1000 Integrated Substation Automation Systems around the world, coupled with the special requirements of the United States market, have driven the development of a new generation, open-architecture, automation system - SICAM. By combining state-of-the-art hardware and software technologies, our application expertise and a design philosophy focused on ease of use and maintenance, Siemens has created an industry leading product suite for Substation and Power Automation. SICAM's open systems approach affords you the maximum flexibility in the design of a substation's control, information and operational architecture, both hardware and software. SICAM allows you to choose from a range of applications - from the most basic to the most demanding. With its building-block approach, SICAM offers a wide range of automation solutions, each of which may be used independently, or integrated to form a tightly coupled, efficient and secure system. Power Systems Control Power Systems Control (PSC) provides: Energy Management Systems (EMS) Distribution Management Systems (DMS) Supervisory Control & Data Acquisition (SCADA) Consultation Deregulation Applications Operations Data Management Products and Services Technical Support Services Siemens PSC is the established leader in providing powerful solutions for complex energy control and distribution requirements. Our installed base of more than 450 control systems worldwide includes systems ranging in size from national power grids, regional power pools, and Independent System Operators to individual utility companies. This tradition and capability continues to grow as we develop and deliver the most current technological advances to our growing base of customers. Siemens PSC's experience and technical know-how will ensure a profitable future for you and your company. Power Transformers SPT&D has sales and service responsibility for Siemens Power Transformers in the U.S.: Power Transformers Phase Angle Regulating Transformers Shunt Reactors ...from 20 MVA up to the highest MVA's and Voltages utilized. Siemens has eight Transformer manufacturing facilities worldwide from which we can source, depending on job site location, market conditions and customer preference. Siemens Manuals Siemens now has a complete collection of manuals on out of production breakers, transformers, switchgear, and regulators available for end-user customers. Please contact us to request a manual. To learn more about Siemens Power Transmission & Distribution visit their website or contact us at ESI.