th keyway according to DIN is generally suitable B3HV-12-C Bevel-helical gear reducers B3

Flender/Flender Gear Units/Bevel-helical gear reducers B3

r essential provisions specified therein. The materials used and the equipment supplied shall be new, rel iable and of the class most suitable for the purpose for which they are intended. The equip ment design and installation shall allow easy access to facilitate inspection, maintenance nd repair. Test certificates of all equipme nt shall be submitted before in spection of the same. Design Construction and Performance Requirement . Low voltage squirrel cage induction motor 1 of 1 INDRADHANUSH GAS GRID LIMITED TECHNICAL SPECIFICATION FOR NATURAL GAS COMPRESSOR STATION FOR NORTH EAST GAS GRID PIPELINE PROJECT TS NO.: MEC//2UU/0/2/0 0 El evators Chapter-0.1 2, MECON Limited, All Right Reserved Page 2 of 3 The design and performance of motors shall conform to IS: 3 - 1, AC squirrel cage induction Motor shall be suitable for Lift operation with VVVF control, frequent start/stop, speed reversal, braki ng etc. Duty Class of motor sh all be S4 minimum 3 start/hour. Constructional Features - Degree of protection for motor, earings and the terminal box shall be IP 5. - The bearings/fan shall be suit able for running the motor in eit her direction. - Two numbers earthing studs sha ll be provided on the motor body. - The motors shall be painted with paint of shade no. 6 as per IS: 5-1. Electrical Design - Motors shall be cage induction motor suitable for VVVF control. Motors shall be suitable for 4V+1% /-1%, 5HZ +3% to - 6% supply. Motor shall be suit able for frequent start/stop operation. - Rating of the motor selected shall be based on the class of dut and the load imposed by the equipment. The accelerating characteristics of the motor sh all be matched with those of the coupled machine so that smooth acceleration is obtained wit hout over heating the motor. - Motor shall be suitable for heavy duty, reversible, frequent st arting, elevator service. - T