PRISMIC A50ADVANTAGES OF NEW PRISMIC A50 EXCITATION CONTROLLER

11/9013AExcitation Controller

Brush is now offering the new PRISMIC A50 excitation controller for all newprojects, replacing earlier generation DCP and MBS controllers. The newA50 controller provides improved functionality and reliability, easiercommissioning and maintenance together with lower cost of spare parts.

Many of these improvements result from the use of high performancemicrocontrollers which integrate many features on chip to enable significantreductions in the number of component parts needed.

The advantages of the A50 compared with the previous generation DCP andMBS controllers are summarised as follows:

Single controller design for complete ouput range• Application engineers’ knowledge can be applied to different system

sizes• Spare parts are common to different generator sizes

Easier Commissioning and Servicing• Simpler procedures with improved Windows-based HMI software• Reduced number of board types• Simple replacement of single unit instead of looking for defect one

Improved Functionality• Wider operating temperature range• Higher long time stability and higher steady state regulation accuracy• Increased control capability of power converters• Communication of excitation controllers directly with SCADA system

(usage of local control panel as a gateway is omitted)• Galvanically insulated servicing port• Optional synchronising function provides higher application flexibility

Improved Reliability• Fewer electronic components• Fewer interconnections

Previous generation Brush MBSexcitation controller.

Previous generation Brush DCP excitationcontroller.

PRISMIC A50 excitation controller with enclosure fitted. PRISMIC A50 control module circuit board.

Brush SEM s.r.o.Edvarda Benese 39, 301 00 PlzenCzech RepublicTel: +420 19 8210777Fax: +420 19 8210214Email: sales@sem.fki-et.comWeb: www.fki-et.com/sem

Brush Electrical Machines LtdPO Box 18, Loughborough,Leics. LE11 1HJ, EnglandTel: +44 (0)1509 611511Fax: +44 (0)1509 610440E-mail: sales@bem.fki-et.comWeb: www.fki-et.com/bem

Brush HMA b.v.PO Box 3007, 2980 DA RidderkerkThe NetherlandsTel: +31 180 445500Fax: +31 180 445866Email: sales@hma.fki-et.comWeb: www.fki-et.com/hma

03/2004

Type A50 MBS DCPDesign Single board with metal Two boards 19” rack with a number of

sheet cover plug in boardsDimensions (w x h x d) [mm] 242 x 272 x 60 223 x 250 x 75 482 x 350 x 260Temperature range -25 to +60ºC 0 to +55ºC 0 to +55ºCNumber of electronic boards per channel 1 2 8 + rackAdditional equipment for connection of No External electronic circuit Diode terminal blockssecond channelPower supply input AC/DC 24V 24V 183-264V / 200-308V or

92-132V / 100-154VDouble input, backup feeding Yes Yes YesLogical inputs 42 x 24V 11 x 24V 48 x 24VHigh speed logical input 1 x 5V galvanically No No

isolatedLogical outputs 18 x SSR 9 x PCB relay 24 x 24VAnalog outputs 3 x 4-20mA 2 x 4-20mA 3 x 4-20mAAnalog inputs:Generator terminal voltage 3 x 100-115V, 50/60Hz 3 x 100-115V, 50/60Hz 3 x 100-115V, 50/60HzGenerator terminal current 3x or 2x or 1x (5A or 1A) 1x (5A or 1A) 3 x 5ANetwork voltage A 1 x 100-115V, 50/60Hz 1 x 100-115V, 50/60Hz 1 x 100-115V, 50/60HzNetwork voltage B 1 x 100-115V, 50/60Hz No 1 x 100-115V, 50/60HzGenerator field current Yes Yes YesGenerator field voltage Yes Yes YesPower converter feeding voltage Yes Yes YesAuxiliary input for PT100 thermometer Yes No NoAuxiliary input (for testing) Yes Yes YesIntegrated power converter No No NoFrequency range of thyristor converting 25-500Hz 25-120Hz 25-120Hzfeeding voltageOutputs for converter control 8 x 24V (0.5A) 6 x 24V (0.5A) 6 x 24V (0.5A)Control capability:Two phase thyristor bridge Yes No NoThree phase thyristor bridge Yes Yes YesCrowbar protection Yes Yes NoIGBT H bridge Yes Yes YesIGBT chopper Yes Yes YesCommunication ports for extension of system CAN CAN RS485(local control panel)Communication ports for SCADA RS485 / RS422 MODBUS- Optional RS485 / RS422 Optional RS485 / RS422

RTU, Optional Profibus-DP MODBUS-RTU, Profibus-DP MODBUS-RTU, Profibus-DPEthernet both through gateway both through gateway(local control panel) (local control panel)

Service port Separate RS232, Separate RS232, non Separate RS232, nongalvanically isolated isolated isolated

Steady state voltage regulation accuracy 0.2 0.5 0.5Rotor current limiter Yes Yes YesStator current limiter Yes Yes YesU/f limiter Yes Yes YesUnderexcitation limiter Yes Yes YesEqualiser Yes Yes YesSynchroniser Optional Optional NoPSS Yes Yes (simplified) YesDiagnostic of rotating rectifier Yes Yes Optional external boardDiagnostics of thyristor conduction Yes No YesField winding temperature evaluation Yes No YesAnalogue data logger Yes No YesLogic data logger Yes No YesStandard applied IEC61010-1:2001 CSN CSN

Brush Excitation Controllers for Static Excitation Systems