Electrical Industry, Circuit Protection Device, MCCB, Electrical Work, Electrification Work, Motor, Induction Motors, Duliajan-Assam

Supply Of Fully Automatic Star/Delta Starter Unit Complete With Explosion Proof Enclosure For 55Kw (75 Hp) Flame Proof Squirrel Cage Induction Motor With The Following Components And Requirements. (1)Incomer: 4 Poles Mccb Of 160Amp With Overload, Short Circuit & Earth Leakage Protection. For Earth Leakage Protection Core Balance Current Transformer Is Required. Earth Leakage Current Setting: 0-3 Amp; Time Setting: 0-1 Sec. Make Of Earth Leakage Relay : Legrand/Merlin Gerin/Ge Ltd/ Prok Dvs Make Of Mccb: Legrand/Merlin Gerin/Siemens/Abb (2)Contactor: Ac3 Duty Contactor Of 70 Amps, Overload (In Built Single Phasing Preventor) Range: (40A-57A) Make Of Contactor & Overload : Siemens(Sicop Series)/ Telemechanique (Schneider Group)/Ge India/L&T(Mn Series) (3)Control Transformer: 230Volt/30 Volt, 5 Amps. Control Circuit Power Supply Shall Be Of 30 V With Intrinsically Safe Barrier Relay Of Make Mtl/Square D/Telemechanique. (4) 06 Nos. Brought Out Terminals For Connecting For Motor Cables. (5) 3 Nos. Leds Are Required For R, Y And B Voltage With Control Circuit Fuse. (6) 3 Phase Digital Ammeter With Inbuilt Selector Switch For Checking Of Current For 3 Phase And Also Current Transformer (C.T) Of Cast Resin Type Of Suitable Rating. (7) The Starter Unit Shall Also Be Equipped With One Remote Flp Start/Stop Push Button Station For Remote Start Having Intrinsically Safe Circuit. (8) The Unit Shall Have Double Compression Flp Cable Gland For Cable Entry Of 3X35 Sq. Mm (Stranded Copper) Cable And 3X2.5 Sq.Mm (Copper) Screened Copper Cable, Voltage Grade: 1.1Kv Ac , 50 Hz, 4 Core ,70 Sqmm (Al)/50 Sqmm(Cu) On Supply Side Cable. (9) All The Components Shall Be Enclosed In Flameproof Enclosure With Ex-D Explosion Proof For Hazardous Area Zone-1 & 2, Gas Group Iia & Iib. Degree Of Protection Code: Ip-65. (10) The Star/Delta Starter Has To Be Certified By Cmrs And To Be Approved By Dgms, Dhanbad.

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