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Tender for Purchase Of Mill Vfd Panel For 450Kw Motor , Mill Vfd Panel For 450 Kw Motor , Motor Duty Class Iv- Accordingly Vfd To Be Selected • Vfd Rating: 560 Kw (Suitable For Constant Torque) • Input Supply: 415V, 3Phase, 50 Hz • Vfd Rated Current: 1035A Minimum • Vfd Type: 6 Pulse • The Vfd Should Be Rated For Minimum 1035A At 50 Deg C Ambient Temp. And After Derating For 4 Khz Switching Frequency For Smooth Operation Of Motor At Entire Speed Range (Vfd Sizing/Derating Calculation To Be Provided To Match This Specification And Motor Overload Class) • Overload Class-Iv For Mill Application: 150% Overload For 1 Hour 200% Overload For 120 Sec Scope Of Supply • Ip-42 Floor Mount Panel, Ral 7035, Bottom Cable Entry, (Make: Rita/Bch/Eldon/Vfd Oem) • Lcd Graphical Hmi On Panel Door • Input Acb-1250A Mdo Type, 3 Phase • Multi Function Meter • External Input/Dc Choke- 3% Impedance For Harmonic Suppression • Vfd Output Filter- Lc Filter/Choke- Minimum 3% Impedance • Ac Vfd Module Withrs 485 Modbus Communication, Ai- 3 Nos, Ao- 3 Nos & Relay Output - 3 Nos. • Vfd Start/Stop/Reset Push Button On Panel Door • Vfd Speed Inc-Dec Push Button On Panel Door • Ryb/Run/Trip Indication • Control Wiring Should Be From Tin Platted Copper Cable To Avoid Corrosion. (Control Function Shall Be Suitable For Mill Application) • Local/Remote/Dcs Selector Switch (One Ai/2 Ao/ 3 Do/2 Di For Dcs Operation) • Galvanic Isolators For All 3 Analog Input & Outputs • Auxiliary Contractor- (Relays Are Not Acceptable) • Back Curved High Speed Cooling Fan With Mcb • Control Supply Transformer With Mcb • Temperature Scanner -8 Window For Mill Motor • Common Mode Filter For Reduces Motor Bearing Noise And Bearing Current, Thereby Increasing Motor Bearing Life. • Dol Starter For Motor Cooling With Mpcb • Panel Space Heater With Thermostat • Panel Light With Door Switch Lcs/Remote Station • Ip55 Enclosure • Start/Stop Push Buttom, Vfd Run/ Trip Indication) & Fwd/Rev Switch • Rpm Meter- 0 To 1500 Rpm Make: Amtech, Abb, Delta & Cg Note: Your Organization Is Responsible For The Installation, Commission And Operation Of The Drive For The Crushing Season 2026-27 , Motor Duty Class Iv- Accordingly Vfd To Be Selected • Vfd Rating: 630 Kw (Suitable For Constant Torque) • Input Supply: 415V, 3Phase, 50 Hz • Vfd Rated Current: 1190A Minimum • Vfd Type: 6 Pulse (Control= Dtc & Safety= Sto) • The Vfd Should Be Rated For Minimum 1190A At 50 Deg C Ambient Temp. And After Derating For 4 Khz Switching Frequency For Smooth Operation Of Motor At Entire Speed Range (Vfd Sizing/Derating Calculation To Be Provided To Match This Specification And Motor Overload Class) • Overload Class-Iv For Mill Application: 150% Overload For 1 Hour 200% Overload For 120 Sec Scope Of Supply • Ip-42 Floor Mount Panel, Ral 7035, Bottom Cable Entry, (Make: Rita/Bch/Eldon/Vfd Oem) • Lcd Graphical Hmi On Panel Door • Input Acb-1250A Mdo Type, 3 Phase • Multi Function Meter • External Input/Dc Choke- 3% Impedance For Harmonic Suppression • Vfd Output Filter- Lc Filter/Choke- Minimum 3% Impedance • Ac Vfd Module Withrs 485 Modbus Communication, Ai- 3 Nos, Ao- 3 Nos & Relay Output - 3 Nos. • Vfd Start/Stop/Reset Push Button On Panel Door • Vfd Speed Inc-Dec Push Button On Panel Door • Ryb/Run/Trip Indication • Control Wiring Should Be From Tin Platted Copper Cable To Avoid Corrosion. (Control Function Shall Be Suitable For Mill Application) • Local/Remote/Dcs Selector Switch (One Ai/2 Ao/ 3 Do/2 Di For Dcs Operation) • Galvanic Isolators For All 3 Analog Input & Outputs • Auxiliary Contractor- (Relays Are Not Acceptable) • Back Curved High Speed Cooling Fan With Mcb • Control Supply Transformer With Mcb • Temperature Scanner -8 Window For Mill Motor • Common Mode Filter For Reduces Motor Bearing Noise And Bearing Current, Thereby Increasing Motor Bearing Life. • Dol Starter For Motor Cooling With Mpcb • Panel Space Heater With Thermostat • Panel Light With Door Switch Lcs/Remote Station • Ip55 Enclosure • Start/Stop Push Buttom, Vfd Run/ Trip Indication) & Fwd/Rev Switch • Rpm Meter- 0 To 1500 Rpm Make: Amtech, Abb, Delta & Cg Note: Your Organization Is Responsible For The Installation, Commission And Operation Of The Drive For The Crushing Season 2026-27 , Motor Duty Class Iv-Accordingly Vfd To Be Selected • Vfd Rating: 630Kw (Suitable For Constant Torque) • Input Supply: 415V, 3 Phase, 50 Hz • Vfd Rated Current: 1190A Minimum • Vfd Type: 6 Pulse • The Vfd Should Be Rated For Minimum 1190A At 50 Deg C Ambient Temp. And After Derating For 4 Khz Switching Frequency For Smooth Operation Of Motor At Entire Speed Rang ( Vfd Sizing/Derating Calculation To Be Provided To Match This Specification And Motor Overload Class) • Overload Class-Iv For Mill Application: • 150% Overload For 1 Hour • 200% Overload For 120 Sec (Control= Dtc & Safety= Sto) Make: Amtech, Abb, Delta & Cg , Motor Duty Class Iv-Accordingly Vfd To Be Selected • Vfd Rating: 560Kw (Suitable For Constant Torque) • Input Supply: 415V, 3 Phase, 50 Hz • Vfd Rated Current: 1035A Minimum • Vfd Type: 6 Pulse • The Vfd Should Be Rated For Minimum 1035A At 50 Deg C Ambient Temp. And After Derating For 4 Khz Switching Frequency For Smooth Operation Of Motor At Entire Speed Rang ( Vfd Sizing/Derating Calculation To Be Provided To Match This Specification And Motor Overload Class) • Overload Class-Iv For Mill Application: • 150% Overload For 1 Hour • 200% Overload For 120 Sec (Control= Dtc & Safety= Sto) Make: Amtech, Abb, Delta & Cg
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