Mini-Sub type 8FB20 upto 24kV Solution for Quality Power... Answers for energy.
Technical Data, Design & Construction Medium Voltage Mini-Sub type 8FB20 upto 24kV Solution for Quality Power... General Characteristics Ambient temperature upto Standard Colour Duty Enclosure degree of protection X'mer compartment MV/ compartment Type of ventilation 0 40 C Rated enclosure class 5 RAL7032 Outdoor/Indoor IP23 IP54 Natural Electrical Data Reference standard Rated voltage Rated power frequency withstand voltage kv rms, min Rated lightning impulse withstand voltage kv,.2/50 µs X'mer rating upto RMU type - 8DJH for 24kV 2 Higher BIL available on request IEC6227-202 2/24Kv 28/50kV 2 75/25kV 600kVA 2 Siemens has been serving the Indian market with a wide range of Medium voltage Power Distribution Systems for more than four decades. Siemens Mini-Sub (MSS) is a product from the MV Distribution product family and is designed keeping in mind the fast growing power needs of Indian cities, combined with reduced urban space availability. The MSS can be ideally installed in residential and commercial complexes, industrial environments, utilities where free space is a major constraint. Key Features: Factory built and tested Tailor made options to cater different requirements Easy and simple to install reducing the on-site operation Ready for network connection Design complies to new IEC 6227-202 Maintenance free SF6 insulated Ring Main Unit for MV networking SCADA compatible equipments Available with oil cooled/dry type transformers up to 600kVA Rust, corrosion and weather proof enclosure Independent access for all the compartments for routine maintenance RMU Standard Variants X mer MV 8FB20-20 MV Metering 8FB20-202 MV dist ACB RMU X mer dist MV ACB RMU X mer dist ACB MCCB MCCB MCCB 8FB20-203 APFC
Equipment Details Electrical equipment in the Mini-Sub MV Switchgear: Ring Main Unit type 8DJHST in Mini-Sub Maintenance free Gas insulated metal enclosed RMU is used for the MV networking in the Mini-Sub Ring feeders are provided with three position disconnector switch, while transformer feeders are provided with circuit breaker acting as three position switch Block type construction Cable connection are from front Logical mechanical interlocks Manual operating mechanism (option: with motor) Capacitive voltage detection system for all the feeders Extensible version available on request Distribution Transformer: Mini-Sub is designed for transformers rating upto 600kVA/24kV Oil cooled hermitically sealed/dry type transformers Transformer is factory fitted inside the Mini-Sub Optionally the transformer can be installed at site The Mini-Sub is designed for lifting along with the transformer fitted inside Low Voltage Distribution: Mini-Sub is designed to house tailor made solutions for different distribution Product range includes Air Circuit Breakers, Moulded Case Circuit Breakers, fuse switches Solutions for automatic supply changeover in case of supply failure by providing DG incomer in tandem with Mini-Sub transformer incomer Capacitor panel with automatic power factor regulation rated as per transformer capacity Internal Connections & Accessories: MV to transformer with MV cables to transformer with busbars/ cables Cables connections inside the RMU with elbow cable adaptors MV connections at transformer with high voltage insulation or optionally with elbow connectors
Product Range W Distribution Outdoor L.V. Panel MV RMU L Outdoor R.M.U Product Overview Mini-Sub comprises: 2mm thick CRC steel sheet enclosure mounted on a hot-dip galvanized ISMC Channel. Doors on each side of the Mini-Sub provide access to the MV RMU, and transformer. MV switchgear is a compact SF -insulated ring main unit with VCB for transformer switching. Transformer can be either oil cooled or dry type. distribution is done with the help of incoming ACB and outgoing MCCB/switch fuse. This can be customized as per the requirement. Optional APFC panel can be accommodated with up to 400kVAr capacitor bank controlled by an intelligent microprocessor based power factor correction relay with data logger. Cable entries are from bottom. 6 Model 8FB20-20 8FB20-202 8FB20-203 Standard Variants MV with 3 way RMU with up to 600kVA transformer and MV with 3 way RMU with MV metering, up to 600kVA transformer and MV with 3 way RMU with up to 600kVA transformer, APFC & Note:- Combination of 8FB20-202 & 203 is also available on request. RMU with different configuration are also available as per the requirement Dimensions L* W H 8FB20-20 2800 2200 2200 8FB20-202 3350 2200 2200 8FB20-203 3350 2200 2200 For 600kVA rating the height of the mini-sub 8FB20 shall be 2650. *Dimensions with 3 way RMU for MV side. The same may vary depending on the RMU configuration. Transport and Installation: Mini-Sub are delivered with protective covering for local shipment and packed for sea shipment for export. Local transport is done on open truck and for export the same is done in open top containers. Mini-Sub are factory assembled and ready for installation on the concrete foundation provided at site. The internal connections are done in factory and only the network cables are to be connected at site.
Product Quality and Customer Benefits Quality Assurance: The Mini-Sub is manufactured in accordance with the latest IEC 6227-202 and Siemens high standards for quality and environment (ISO900 and ISO 400). Personal Safety: All live parts in the Mini-Sub are protected against unintentional contact by means of lockable / mechanically interlocked door and covers. The Low voltage parts are also protected with unintentional contact. The enclosure of the Mini-Sub is effectively earthed with the earth busbar forming a grid inside the Mini-Sub interconnecting all the equipments. Provision for connecting the external grid earth is given on either sides of the Mini-Sub. Climatic and Environmental Protection: The Mini-Sub enclosure is designed for withstanding the harsh climatic conditions by high quality surface treatment and powder coated paint as per proven Siemens standards. This ensures the exterior/interior finish remains Intact for all the environmental and climatic changes. All the parts are designed to take care of outdoor and vandal free installations. Protection against theft is taken care by providing lockable doors and mechanically interlocked covers. Modular Design: Factory assembled Mini-Sub is ready for installation. In areas where completely assembled unit cannot be transported, the Mini-Sub can be dispatched in modular form and can be installed at site. Modular and completely bolted design allows this flexibility to overcome the space crunch. Advantages: Complying with latest IEC 6227-202 for unitized substation Different range of distribution transformers Maintenance free ring main unit type 8DJHST is used for MV networking, type tested for internal arc fault All live parts in the Mini-Sub are protected against unintentional contact by means of lockable doors Reduced overall plant and operating costs Unmanned substation Compact: Can be installed in a limited space of 6 sq. meter Appealing aesthetics
Would you like to find out more? Please do not hesitate to contact us at any of the following address: Siemens Ltd. Energy Sector Power Distribution Division Medium Voltage Thane Belapur Road Thane 400 60, India Tel.: +9 22 2762 340 www.siemens.com/energy Siemens Ltd. Industry Sector Building Technologies Division Low Voltage Global Components Thane Belapur Road Thane 400 60, India Fax: +9 22 2764 5627 Email: globalcomponents.in@siemens.com www.siemens.com/industry Product development is a continuous process. Consequently the data indicated in this booklet is subject to change without prior notice. For latest issue contact our Sales Office. Customer Care Toll Free No.: 800 220 987 Email: adscs.india@siemens.com Siemens Ltd. ENE-03-5-00