SIGENTICS HV Series S-modyn

Transcription

1 SIGENTICS HV Series S-modyn High-voltage 3-phase salient pole generators siemens.com/sigentics Answers for industry.

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3 SIGENTICS: 4-pole generators for industrial turbines The energy business is characterized by the request for high-quality products and minimum downtime of components during operation and service intervals. The SIGENTICS HV Series S-modyn provides a comprehensive generator solution for all turbine applications in the power range from 25 MVA to 70 MVA. The 4-pole synchronous generator can be configured to customer requirements by using predefined options onshore and offshore, island mode and grid operation. SIGENTICS HV Series S-modyn is designed in one shaft height and four different housing lengths. This generator design provides a customer-friendly interface concept by reducing variants in anchor bolt positions, piping flanges and grid connections. Since it is our goal to offer the best quality for the best price, we developed a generator that can be produced in a consistent series. In order to minimize the complexity in design and interfaces, we designed our generators on equivalent frame size. The high repeat rate on identical parts associated to this concept enables Siemens a strong hold on the supplier s chain and an effective quality management. Our processes are also optimized for minimal production and delivery times to ensure you have your SIGENTICS HV Series S-modyn provided to you on schedule. The generator is available with air-water cooling in the IC8A1W7, directly air-cooled with the IC3A1 and featuring air-to-air cooling in the IC6A1A6 and IC6A6A6 both in 50 Hz and 60 Hz configurations. Shaft line vibration levels are within ISO limits and optionally available within API IP546 limits. More stability through compact and integrated design The design of the generator series is short and compact to ensure the lowest vibration severity. The sensitivity to load and vibrations during normal operation is reduced. Stator as well as rotor and machine housing are decoupled from the base frame. Low noise emission can be assured and allows the IC01 / IC81 W machine to reach a sound pressure level of < 80 db (A) during rated, unloaded operation. The exciter is placed inside of the machine. This contributes to the reliability of the machine due to an optimized cooling and sealing concept for the exciter and bearing system. Solid-dynamic excitation system Using highly resilient diodes improves the performance and the stability of the generators during network operation. Since the exciters of the generators are designed for operation on comparably low voltage, the threat of a voltage breakthrough in the diodes is limited. Furthermore, the low-voltage operation ex tends the lifetime of the diodes. Self-healing varistors ensure lifelong protection against the negative impact of transient events for the diodes. The usage of a combination of self-healing varistors and diodes creates a reliable and sustainable excitation system. Reliability and stability can be guaranteed during any disturbances to the power supply. Coverage of the whole power range by one shaft height The complete power range from 25 MVA to 70 MVA is covered by one shaft height. Only active part lengths and housing lengths vary to realize the desired performance. Nevertheless, the efficiency of the generator at the rated performance of the SIGENTICS HV Series S-modyn is higher than 98 %.This concept also ensures a comparatively high flexibility when handling changes in the electrical demand that may occur during the original planning phase or even during a functional replacement of turbines with different performance characteristics at a later point of time. With the use of a modular system throughout the generator series, the adjustment of interfaces does not take a lot of effort. Moreover, it is easier to work out an optimal emergency concept for the replacement of the generators, which has a positive effect on the downtime of the SIGENTICS HV Series S-modyn. 3

4 1 Cooler 2 Bearing 3 Brushless Exciter with PMG 4 Salient Pole Rotor 5 Insulated Stator Winding 6 Laminated Core 7 Welded Base Frame 8 Internal Lifting Tool

5 Advantages at a glance Compact mechanical design Efficiency higher than 98 % Full power range within one shaft height High quality and minimum downtime of components during operation and service intervals Mechanical durability due to compact rotor design: permanent disturbance-free generator operation ensures the availability of the complete plant Minimum shaft line vibrations Strong and stiff base frame and mechanical stability Serial production and material-optimized generator design Brushless excitation 8 Your benefits This reliable generator concept is based on over 100 years of experience in building synchronous machines Reduced life cycle costs Short lead times Short delivery time Minimal maintenance time 7 Technical overview Machine type Design Power range Speed Frequency Voltage Type of cooling system Explosion protection Synchronous generator with salient pole rotor, 4-pole customizable MVA 1,500 / 1,800 RPM 50 and 60 Hz kv air-to-water cooling as per IC8A1W7 direct air cooling as per IC3A1 air-to-air cooling as per IC6A6A6 and IC6A1A6 Ex p Standards IEC 60034, IEEE115, NEMA MG-1, API 546 5

6 Isolation class H In order to prevent a quick aging of the winding isolation, which can occur through repeated temporary overload operation of the turbines, the rotor is insulated according to IEC The well established, high-quality Siemens MICALASTIC system is used to insulate the stator windings in class F. The rotor is insulated in class H according to IEC Usually, the generator will be utilized according to class B. This means that overload conditions, for example when the turbine peaks, can be compensated without this having a negative impact on the guaranteed generator service life. Patented and worldwide proven the MICALASTIC isolation system MICALASTIC, the worldwide proven isolation system for high-voltage high-power generators and motors, is used for the SIMOTICS HV Series S-modyn. An important component of MICALASTIC is the VPI process (Vacuum Pressure Impregnation). The system fulfills all requirements just like: Operation at the grid or converter High switching and turning capacity through high stiffness of the winding heads Excellent corona shielding Together with the exceptional mechanical stiffness and thermal resistance, the winding proves to be extremely durable even under rough circumstances. Maintenance and service intervals The reliability of the product allows the generator maintenance intervals to be adapted to a great extent to the maintenance intervals specified by the turbine manufacturer. Worldwide service and support Our experienced specialists support you in every situation in more than 100 countries worldwide. Since we offer a comprehensive service package, we support you during the whole product life cycle. It does not matter what issues you may be presented with we understand the importance of your production and operation. So as your partner, we will support you during the entire consulting and configuration process, the identification of an appropriate solution, the commissioning and also after our high-quality generator has been running for years. We take care to identify the right maintenance plan, repairs and fault clearing and provide you with the necessary replacement parts to keep you running. Innovation and manufacturing We always try to develop our portfolio in order to make sure you just get the best and most innovative machines. Therefore we feel obliged to optimize and modernize your Siemens products during the whole life cycle. Our technical consulting and support team will be happy to assist you. Cooling types The following cooling types are available for the SIGENTICS HV Series S-modyn: air-to-water cooling as per IC8A1W7 direct air cooling as per IC3A1 air-to-air cooling as per IC6A6A6 and IC6A1A6 6 Model of gas turbine power plant with integrated synchronous generator

7 Technical data Water-cooled generators Type Apparent power Power factor Voltage Frequency Inlet temp. Thermal utilization Noise Efficiency Horizontal bearing vibration Standard IDS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.4 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.3 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.2 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.1 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.0 % < 1.8 mm/s High utilization 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.3 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.2 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.1 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 35 C Class B 83 db(a) 98.0 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.2 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.1 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.0 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 97.7 % < 1.8 mm/s Directly air-cooled generators Type Apparent power Power factor Voltage Frequency Inlet temp. Thermal utilization Noise Efficiency Horizontal bearing vibration Standard 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.4 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.4 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.3 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.2 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.0 % < 1.8 mm/s High utilization 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.4 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.3 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.2 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 25 C Class B 83 db(a) 98.0 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 15 C Class B 83 db(a) 98.3 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 15 C Class B 83 db(a) 98.2 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 15 C Class B 83 db(a) 98.1 % < 1.8 mm/s 1DS MVA /10.5 kv 50 Hz 15 C Class B 83 db(a) 97.9 % < 1.8 mm/s 7

8 Additional information: Siemens AG Industry Sector Drive Technologies Division Large Drives BERLIN GERMANY Subject to change without prior notice Article No. E20001-A300-P530-X-7600 Dispo SCHÖ WS 1.0 Printed in Germany Siemens AG 2014 The information provided in this brochure contains merely general descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. All product designations may be trademarks or product names of Siemens AG or supplier companies whose use by third parties for their own purposes could violate the rights of the owners.