power distribution - Siemens

Medium Voltage EquipmentMV Controllers (MVC) up to 7.2 kVStationaryThe Siemens Series 81000 MVC is alsooffered in a stationary contactor design.The one high stationary starters can beconfigured in a reduced height (75") andreduced width (24") stand-alone enclosurefacilitating a smaller footprint and reducedshipping cost.GeneralMain and Vertical Bus Construction (shownwith optional insulation)Power BusAll power bus is isolated behind groundedsteel barriers. Automatic shutters areprovided to cover the line-side bus stabswhenever a starter door is opened.Horizontal bus ratings range from 600through 3000 amperes and are furtherdetailed in Table 18. Vertical tap buses ineach section are rated 360, 540, or 720amperes, depending on the application.Insulated bus with boots are available asoptions.DrawoutThe Siemens Series 81000 DrawoutMedium Voltage Motor Controller is amodular design consisting of up to threevacuum contactors per vertical sectioneach with three current limiting fuses, allhoused in a free-standing sheet steelenclosure.The completely drawout contactorcarriage (360A) includes all major powercomponents (vacuum contactor, powerfuses, CPT, CPT fuses) on a wheeled,drawout carriage. The drawout contactorcarriage includes a quick disconnect plugfor secondary connections. Drawout fusecarriages are used when loads require720A vacuum contactors.Contactors are available in up to threehigh mounting for 5kV and 360A.The drawout controllers are available in awide range of starter types, includingSolid State Reduced Voltage.Table 18Series 81000 Bus RatingsContinuousConductorSize inInches (mm)Type Bus AmperesMain600Horizontal 100012001000120020003000Vertical 360540720Ground 6003000A bus must be located on top of unit.0.25 (6) x 3.0 (76)0.375 (10) x 3.0 (76)0.50 (13) x 3.0 (76)0.25 (6) x 3.0 (76)0.375 (10) x 3.0 (76)2 x 0.375 (10) x 3.0 (76)3 x 0.50 (13) x 3.0 (76)0.25 x (6) x 1.0 (25)0.25 (6) x 1.5 (38)0.50 (13) x 2.0 (51)0.25 (6) x 2.0 (51)Solid State Reduced VoltageController (SSRVC)Soft Start Advantages▪ Minimize system maintenance andrepair▪ Reduce system downtime▪ Increase productivity▪ Minimize mechanical wear and tear▪ Reduce inrush currents▪ Reduce motor torque for prolongedmotor lifeStandard Features▪ Drawout main fused contactor (360A)▪ Drawout main fuses with fixed-mountedmain contactor (720A)▪ Bypass contactor▪ Heavy duty soft start module▪ 125% continuous duty rating (on softstart module only)▪ Digital microprocessor control with nonvolatilememory▪ Fiber optic isolation▪ Advanced electronic motor protection▪ Metering▪ Alphanumeric LCD display▪ Keypad programming▪ Modbus RTU communicationsConductorMaterialAluminumCopperCurrentDensity(Amps/in 2 )80088980013331067889667144014407201200Solid State Reduced VoltageStandard Adjustment Capabilities▪ Soft start and stop▪ Voltage and current rampStarting Methods (settable)▪ Current limit and dual ramp▪ Learned acceleration curve or userdefined (custom) acceleration curve▪ Kick start and jogOptional Features▪ Zero sequence ground fault protection▪ Profibus communicationsFlexibility▪ Available in lineups with up to 3000Amain bus directly connected with Metal-Clad Switchgear, Load InterrupterSwitches, or other Class E2 ControllersSafety▪ Full drawout construction means powerfuse changes are done outside of theenclosureReliability▪ Made under ISO 9001 Quality SystemstandardsDependability▪ Series 81000 Controllers have been inproduction for over 20 yearsUL Listed13 SWITCHGEARFor more information, please visit http://automation.usa.siemens.com/consultant/ or contact your local sales office.Siemens Power Distribution & Control, SPEEDFAX 2007-2008 Product Catalog 13-19