Drive type VVVF Drive system with communication (PROFIBUS/NET) (VVVF drive in purchaser’s scope) Voltage 415 V ± 10% , 3 phase Frequency 50 Hz ± 5 % MOC of blower SS 304, min 3 mm thick MOC of dampers SS 304, min 2 mm thick MOC of base SS 304 frame MOC of impeller SS 304, min 2 mm thick MOC of ducts SS 304, duct min 2 mm thick; flange min 6 mm thick and flange Blower suction To mate with dust collection system Blower discharge To be specified by party, open into mill room Operation Max 50OC temperature Motor type Ex-d, Ex-proof complying to operate in Zone I, Group IIA, IIB hazardous areas. Motor temp. T4 or better classification Motor protection IP 65 or better Drive type Direct drive Motor capacity Min 7.5 HP, 2880 RPM Blower capacity Min 1250 CMH @ 600 mm WC Dynamic balance As per standard Mounting of SS/RCC pedestal motor Hazardous zone Ex Proof, Zone I, Group IIA, Group IIB compatible operation Blower Suction of blowers are to be connected to same interconnection header line with damper for isolation and proximity sensor for obtaining the feedback. (Proximity sensor in purchaser’s scope) Compliance Table 10 (yes/No) Specifications of Hopper magnets Description Essential Specification Quantity 3 Nos Make Eriez or equivalent Model IR54168 of Eriez or equivalent
Drive type VVVF Drive system with communication (PROFIBUS/NET) (VVVF drive in purchaser’s scope) Voltage 415 V ± 10% , 3 phase Frequency 50 Hz ± 5 % MOC of blower SS 304, min 3 mm thick MOC of dampers SS 304, min 2 mm thick MOC of base frame SS 304 MOC of impeller SS 304, min 2 mm thick MOC of ducts and flange SS 304, duct min 2 mm thick; flange min 6 mm thick Blower suction To mate with dust collection system Blower discharge To be specified by party, open into mill room Operation temperature Max 50OC Motor type Ex-d, Ex-proof complying to operate in Zone I, Group IIA, IIB hazardous areas. Motor temp. classification T4 or better Motor protection IP 65 or better Drive type Direct drive Motor capacity Min 7.5 HP, 2880 RPM Blower capacity Min 1250 CMH @ 600 mm WC Dynamic balance As per standard Mounting of motor SS/RCC pedestal Hazardous zone operation Ex Proof, Zone I, Group IIA, Group IIB compatible Blower interconnection Suction of blowers are to be connected to same header line with damper for isolation and proximity sensor for obtaining the feedback. (Proximity sensor in purchaser’s scope) Table 10 Specifications of Hopper magnets Compliance (yes/No) Description Essential Specification Quantity 3 Nos Make Eriez or equivalent Model IR54168 of Eriez or equivalent
IDT00959300000000000isro05401.docx