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High Power(100-250 KW)DC drive power panels for steel rolling mill aplication

indexIMG10

 

DC drive control panel with its control pendent is suitable to power

up to 250 KW DC motor drive in closed loop control using a 6 pulse

fully controlled SCR bridge.Feedback can be Voltage Feed back or

Taco feedback and power output up to a maximum rating of about

250 KW,440V armature and fixed field excitation 220/200/190V.

 

General overview of panel – power,control and application features:

 

DC drive control panel with its control pendent is suitable to power up

to 250 KW DC motor drive in closed loop control using a 6 pulse fully

controlled SCR bridge. Feedback can be Voltage feed back or Taco

feedback and power output up to a maximum rating of about 250 KW,

440V armature and fixed field excitation of 220/200/190V.

 

INCOMER TO MAIN PANEL

415 V(+/-10%),3 phase supply + N,50Hz)+/-2%.630 A rated incomer.

 

OUTPUT RATING

0-440 V DC,500A rated maximum.

 

CONTROL FEATURES

Selctable -Voltage feed back(provided internal to panel).

-Analog taco-100 VDC for 2000rpm.

 

REMOTE OPERATION

provided with a pedestal mounted remote pendent to start and stop drives as wellas set

the speeds independently using 10 turn potentiometers-one for each drive.

 

FIELD EXICITATION

Fixed filed exictation (220V/220V/190V-select internal to panel- maximum-current 16 A.

(Fuse protected-16A)

 

PROTECTION FEATURES

Sub-Cycle MCCB trip protection with 630 A HRC back-up.Asjustable DC current limit and

instantaneous over-current trip filed current failure detection.Over Temperature Warning

on SCR heat sinks.Communication current limiting reactor.

 

CONTROL SYSTEM

Equipped with single chip ASIC based for complete digital control on the power semiconductors

and hybrid control for closed loop speed/Voltage and current control loops.The system has phase

sequence and incorporates digital phase control firing six high current thyristors.can be connected

to a remote computer/PLC.

 

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