B2-CV5-B Flender GmbH Flender MD Design of the gear un Bevel-helical speed reducers B2

Flender/Flender Gear Units/Bevel-helical speed reducers B2

ment shall adhere to the principle of fail-safe operation at all system levels (..) the loss of ignal, loss of power or failure of any component should not cause hazardous condition and at the same time prevent occurrence of false trips and provide reliable and efficient operation of the plant under dynamic conditi ons and attainment of maximum av ailability. 0.0.0 The entire unit operation and monitoring under all reg imes of operation .. start-up, normal operation, shut down, etc shall be possible through Colo ur TFTs / Keyboards / Mouse or equivalent cursor control devices mounted on Unit Co ntrol Desk (UCD) in the unit control room. minimum quantity of back-up push button station may be provided. 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 Control & Instru mentation (&) Chapter-0.0 2, MECON Limited, All Right Reserved Page 1 of 1 For all electrical systems within the plant, all electrical bre akers control shall be performed from TFT / Keyboard mounted on UCD with back-up from miniaturized hard wired switches and push buttons mounted on electrical cont rol panel provided with mimics. 0.0.0 TFT alarm displays, sequen ce of event monitoring etc. shall be provided for rapid diagnosis and logging of eve nts following unit trip. 0.0.0 Vibration monitoring devices , bearing temperature- mon itoring devices etc for major auxiliaries shall be provided to give alarms for proper healthi ness of the equipment. 0.0.0 Extensive self-monitoring and diagnostic features shal be employed to enable location of faulty components / system in the minimum possible time. 0.0.0 PLC shall work on 2 DC. The 2 DC supply shall be generated from the UPS 2 AC. suitable dedicated battery bank of 2 DC is to be considered separately as input source for PLC backup, Alarm annunciation ,emergency syst