Project name: Protection device:Andritz - Pan Pac REM 610 Customer reference: Title:Pan Pac Setting proposal for Motor ProtectionMotor: Prepared by: Sheet:WEG - MGW560C 6/12/2003 R. Calin 1 / 5

Checked by: Revision:6/12/2003 Type name here A

MOTOR DATA: Rated power PnM = 2500.0 kW

Rated voltage UnM = 11.0 kV

Rated current InM = 153.1 A

Starting current Is = 4.50 × InM

Starting time ts = 1.7 s

Ambient temperature Tamb = 40.00 °C

PHASE CURRENT CT DATA: CT primary = 300 ACT secondary = 1 A

relay input = 1 A

NEUTRAL CURRENT CT DATA: CT primary = 50 ACT secondary = 1 A

relay input = 1 ARELAY SETTINGS:

Thermal overload protection: Setting range:p.u. scaling factor (0,5…2,5) k = 1.96Safe stall time (2,0...120 s) t6x = 4.5 s

Weighting factor (20...100%) p = 50 %Prior alarm level (50...100%) Q a = 90 %Restart inhibit level (20...80%) Q i = 70 %Cooling time constant (1...64 × tH) kc = 5

Start-up supervision:Start current (1,0...10 × IN) Is> = 4.50 × InStart-up time (0,3...80 s) ts> = 1.96 s

Short-circuit protection:Start current (0,5...20 × IN or ) I>> = 3.38 × InOperate time (0,05...30 s) t>> = 0.05 s

Earth-fault protection:Start current (1,0...100% IN) I0> = 22.50 % InOperate time (0,05…300 s) t0> = 0.50 s

Unbalance protection:Start current (0,1…0,5 x In) I2> = 0.20 x InTime constant (5…100) K2 = 9.0

Undercurrent protection:Start current (30…80% x In) I< = not in use % x InOperate time (2…600 s) t< = not in use s

Cumulative start time counter:Restart inhibitingStart count setting (5…500 s) Stsi = 5.0 sCountdown rate ofstart-up time counter (2…250 s/h) DSts/Dt = 2.0 s/h

Remarks:

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