Switchgear and protective devices 2015 8 p a g e risk of synchronous motors in large industrial premises falling out of step and tripping out. Vertically isolated and withdrawable medium voltage switchgear. Designed to offer flexible applications complete range of units and apparatus service continuity personnel safety simple maintenance. At this moment, we hope you already identified the major differences between rmu and switchgear. Reply of prebid queries submitted by abb for 33kv gas. Mediumvoltage mv gasinsulated switchgear gis types 8da10 and 8db10 are gasinsulated, vacuum circuit breaker designs with a maximum design voltage of 4. Abb s ecoefficient airplus technology delivered to norwegian smart grid. Also the hard copies as per specification shall be submitted. Unigear zs2 formerly known as unisafe 36 is a medium voltage, metalclad airinsulated switchgear ais suitable for indoor installations. Zx2 is part of abbs successful zx family of gasinsulated indoor switchgears for primary distribution. Mv air insulated switchgear for primary distribution up to 24 kv, 4000 a, 50 ka. Learn the fundamentals of medium voltage switchgear. Make sure that under operation condition of the switchgear or switchboard the specified data are not exceeded.
Medium voltage switchgear abb industrial solutions. Manual installation commissioning operations and maintenance environment and recycling. Abb library is a web tool for searching for documents related to abb products and services. Our deep domain expertise in innovative engineering and advanced manufacturing combined with our global presence enables us to help our customers solve their toughest electrical infrastructure. Suitable for use in power plants, utility and industrial applications, transportation and the marine sector, it is designed to meet the most. To download abb switchgear manual, please refer to the following link which forwards you to abb web site. Abbs ecoefficient airplus technology delivered to norwegian smart grid. Ratings, characteristics, tests and test procedures, etc. Asset stewardship report 2014 lpn 11kv grid and primary switchgear version 2.
Abb breaks new ground with environment friendly highvoltage circuit. Lightning impulsewithstand voltage ratings up to 200 kv bil and interrupting ratings up to 40 ka are available. Connection of 11 kv feeders, bus tie cables, system. Iec and ieee standards for highvoltage switchgear and.
Abbs mediumvoltage switchgear portfolio helps protect and control electrical equipment in commercial, industrial and utility applications worldwide. There are three current ratings of circuit breaker available, having ratings of 630800 amp, 1250 amp and 20002500 amp. Its a vital system in industries that experience electrical faults or those that need to regularly deenergize equipment for maintenance, such as industrial environments and electrical utilities. Unigear zs2 air insulated switchgear medium voltage. Unigear zs1 is the abb mainline global switchgear for primary distribution up to 24 kv, 4 000 a, 50 ka. Leangear zs9 arcproof airinsulated switchgear for primary distribution 12kv up to 1250a, 25ka for 3895 bil. Environmentallyfriendly ring main unit switchgear for application in 1224 kv medium voltage distribution networks.
A switchgear consists of a number of switchgear cubicles with connecting. Unigear zs1 is manufactured on six continents with more than 200 000 panels installed to operate around the world in more than 100 countries. Zs2 mediumvoltage airinsulated switchgear up to 36 kv english pdf. Technical specification of 11 kv scada controlled indoor. Introduction of indoor switchgear advantages and limitations of indoor switchgear. The contents of this manual are protected in accordance with law and may not be reproduced without permission from. It is characterized by compact dimensions, good operator guidance and a modern functional industrial design. This paper covers general safe operations on medium. The extensive global offering includes distribution automation products, switching, limiting, measuring and sensing devices, switchgear, modular substation.
Ring main unit is utilized in a substation in a high voltage distribution. Unigear type zs1 is now part of the abb unique airinsulated switchboard family. For data on the individual switching devices, see abb switchgear handbook or the instruction manual for the switching device concerned, as listed under 7. Unigear is abbs highly flexible airinsulated, mediumvoltage switchgear for primary distribution installations. Medium voltage switchgear, including air insulated ais and gas insulated gis switchgear for primary and secondary distribution. Unigear zs1 single busbar system airinsulated switchgear for power application.
Above and beyond this, the orderrelated compensated for in the design of the busbars data from abb xiamen switchgear co. It is intended to meet all electrical distribution needs up to 17. The units are designed as withdrawable modules and are fitted with a single bus bar system. Abb ability digital switchgear solution ensures reliable power in helsinkis smart city district. Maintenance of electrical switchgear ms28, tl4 11 chapter 1 introduction 110 purpose 111 scope this handbook contains information on safety practices and environmental considerations when working on switchgear, descriptions of typical classes of switchgear, and preventive and corrective maintenance guidelines for switchgear. Typical single busbar cubicles available from the abb unigear zs1 range. Thus, the market requirements, especially regarding small functional compartments without additio. Customers services, installation, the specialists for new.
Eaton s mediumvoltage switchgear provides centralized control and protection of mediumvoltage power equipment and circuits in industrial, commercial, and utility installations involving generators, motors, feeder circuits, and transmission and distribution lines. Ms28 handbook maintenance of electrical switchgear tl4. Primary ais mv switchgear withdrawable cb up to 17. Iec air insulated switchgear unigear zs2 abb group. This is an example how to describe your requirements for 11 kv switchgear which is scada controlled. Difference between ring main unit and switchgear orecco. The advan stated that, among southafrican tages of switching in vacuum are manufacturer s of indoor considerable. Multiple documents found abb library could not identify a unique document based on the available parameters. Switchgear type 8djh for secondary distribution systems up. Control of the earthing switch is from the front of the switchgear with manual operation, and optionally, can. Latest abb price list of abb switchgear, air circuit breaker, miniature circuit breakers mcb, molded case circuit breakers mccb, motor protection circuit breakers, isolators, miniature circuit breaker or low voltage switchgear, residual current circuit breakers, or switch disconnector. Abb delivers state of the art technologies to italys most innovative data center.
The bidder shall submit quality assurance plan for. Switchgear type 8djh for secondary distribution systems up to 24 kv, gasinsulated siemens ha 40. Secogear metal clad switchgear abb industrial solutions. Ax1 is a registered trademark belonging to abb asea brown boveri ltd in switzerland. Safety operations on medium voltage switchgear author and presenter.
Technical guide the mvlv transformer substations abb group. Switchgear consist of 11kv busbar, fixed type circuit breakers, disconnectors and associated control and protection equipment. The general layout of a protection system may be viewed as given in the following figure. Recent listings manufacturer directory get instant insight into any electronic component. More and more complex network structures and increasing shortcircuit power require new solutions. Mv air insulated switchgear for primary distribution for 36 kv, 2500 a, 31. It is the first one size fits all platform of its kind in the 1224 kv range. To work on switchgear where covers have to be removed, personal protective equipment has to be worn for protection against hot gases exhausting in case of internal arc. Abb unveils abb ability digital switchgear for secondary distribution networks. The hvx vacuum circuitbreaker is the result of consistent further development for application in modern airinsulated switchgear units. Mv air insulated switchgear for primary distribution up to 17. The 11 kv indoor switchgear shall provide for the following. It has a modular design and is built with robust and wellproven components. Electrical switchgear regulates, protects, and isolates a power system with a variety of controls housed in a metal enclosure.
Vacuum interrupters design applications and limitations. Description reference comments deviations proposed comments of iitbhu 1 cl. Medium voltage iec air insulated primary switchgear. For switchgear with proven internal arc classification according to iec 62271 part 200, no protective equipment is required for operating the switchgear.