H2-SV-17-A www flender Helical gear Reduction Box H2

Flender/Flender Gear Units/Helical gear Reduction Box H2

0/2/0 Electrical system Chapter-0.0 2, MECON Limited, All Right Reserved Pag 4 of 2 Shall be capable of withstanding system fault current taking in to account CT saturation. Shall be back connected, flushed with control cubical door. Shall have square flush case, non-reflecting type, clearly divi ded and indelibly marked scales, sharply out lin ed pointers and zero adjusting de vice. All analogue meters shall be aut band type having size of 9 qmm. The minimum scale reading shall not be more than 1%. Maximum eading shall be 1% full load for transformer panel and 6% of full load reading of motor panels. 1% to 6% shall be compr essed scale for motor feeders. Each voltmeter shall be ca librated with coil hot. Class of accuracy shall be 1.0 or better for analogue meters an 0.5 for digital meters. Digital multi function meter ( FM) shall be provided for each eeder unless specified otherwise. MFM shall be provided with Modbus RTU comm unication port for connection to SCADA. The MFM shall be true rms type, ave accuracy class of 0.5 for all the parameters. The MFM shall be 3 line 7 segment, 3/2 digit LED display, external powered, site configurable for CT/PT ra tion, 3 Phase measurements. Display-Current, Voltage, Active & Reactive ower, PF, frequency, four quadrant active, reactive and apparent pow er & energies, THD & Individual voltage & current harmonics indications. MFM shall be suitable for harmonic measurement & display up to 3st harmonic. MFM with Modbus RTU protocol shall be looped with shielded wire communication. Max 8 devices per loop shall be considered. All looping to be brought to one panel where RS 4 to Ethernet converter shall installed for external connection to SCADA/ Automation system through Etherne switch. The details of metering requirement are elaborated below for 6 .6 kV Switchboard. This shall be utiliz