Sugar Mill is a place where the sugarcane is pressed to extract juice and the Juice will be boiled
down to make crystals of sugar.
Mill application: Sugar cane Juice extraction by milling is the process of squeezing the juice from the cane under a set of mills using high pressure between heavy iron rollers. Those mills can have from 3 up to 6 roller mills; every set of mills is called a tandem mill or mill train.
Yaskawa supplied Line-up VFD panels with A1000 HHP High-Performance Vector Control Modular Low voltage AC drives with panel engineering solution for 750KW Mill application. The Customer Industry is a global agribusiness and bio-energy corporation The Company is one
of the largest sugar manufacturer refiner and ethanol producers in India and the world. It has a refining capacity of 4000 tonnes/day and a distillery capacity of 600 kilolitres/day. It has a 21% market share in India's fuel ethanol market, It also accounts for 20% of India's international sugar contribution. The Company operates eleven integrated sugar mills globally (four in Brazil & seven in India) & two port-based refineries in India. Indian operations produce 242 MW with exportable of 135 MW.
Solution Offered:
Supplied Low voltage 690V A1000 HHP High-Performance Vector Control Modular AC
drive Panel designed for 150% Continuous load current with 50kA short circuit current for 1 sec & Low harmonic solution for 750kW Mill application project.
Line-up panels designed with floor mounting, IP42 protection, RAL 7035 colour, 2mm frame CRCA sheet.
Panel enclosures designed with bottom cable entry & exit, with topside bus bar chamber and both front & rear access.
Application, Power ratings & VFD models mentioned below.
Sl No
Application
Model no
KW Rating
Qty
1
Sugar Mill
CIMR- AD6H1350B
750kW
1
Customer requirement
Replacement with existing VFD make, improved Quality, Lesser thermal breakdowns, service
& maintenance-free, low failure rates & low harmonic, low cost, Improved production & better performance
Key Highlights considered in Panel design
Offered Panel with A1000HHP 12 pulse VFD configuration to achieve total harmonic
distortion lesser than 12% in load condition and reduce excessive energy losses & improve power factor with Low cost.
Incomer power supply breakers rated for 50kA short circuit with 630 amps current carrying capacity for Star and delta power connections designed for Low harmonic & 150% Continuous Full load current.
In Mill applications, a high starting torque required from zero speed so designed VFD incomer power supply breakers, and bus bars for 150% continuous motor full load current carrying capacity of 780A & 690 V by increasing production & high performance.
Designed panel with Aluminium bus bars to withstand 50kA short circuit current for 1 sec. rated for 150% of motor full load current carrying capacity
Panel designed considering the VFD, power components & bus bars ratings to withstand for 50-degree ambient temperature to reduce thermal breakdowns.
Offered modular drive A1000HHP for 750KW Mill application & designed panel with easy access for service, maintenance-free, and easy operation.
VFD panel has been designed in enclosure considering Local & DCS control.
Local control station designed with IP55 protection.