All welded and brazed joints of riser conductor shall be coated with bituminous paint. After completion of installation of capacitor bank the shut down for charging of capacitor bank will be arranged by MSEDCL. For this, the supplier has to intimate MSEDCL in writing about readiness of the capacitor bank.
No drawing of width more than 35 cm will be acceptable. One set each of the final drawings; bill of materials, wiring schedules and commissioning manuals shall invariably be forwarded to the consignee along with the each set of capacitor bank consignment and shall be listed out in the packing list, when submitted for approval.
The series capacitor units and banks are usually intended for high-voltage power systems. This standard is applicable to the complete voltage range. This standard does not apply to capacitors of the self-healing metallized dielectric type. The following capacitors, even if connected in series with a circuit, are excluded from this standard:
6.4 Each bank shall be of 1.2/2.4/3.0 MVAr rating at 11kV and shall be double star connected bank with neutral point connected through NCT. If there are more than one capacitor banks in the sub-station, damping reactors of 0.2% rating should be used on the neutral side of the capacitor bank.
The capacitor bank shall consist of capacitor bank, circuit breaker, Series Reactor, control & relay panel, isolators, LAs, CTs and NCT, conductor, all type of necessary connectors along with suitable mounting structure. All these equipment shall have suitable terminal/equipment connectors as detailed under clause No.11.2 of the specification.
If there are more than one capacitor banks in the sub-station, damping reactors of 0.2% rating should be used on the neutral side of the capacitor bank. The inductance value will control amplitude and frequency of the inrush current at back to back switching.
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