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AI Customer ServiceThis Engineering Equipment Specification (EE SPEC) defines the requirements for substation 110V batteries, battery chargers, battery controllers, dc distribution boards & associated
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AI Customer ServiceTechnical Specification of Stationary Batteries and Battery Charger 30 V, 100 Ah, 25A Suitable for MSEDCL 33/11 kV Conventional Substation and 30V, 200 Ah,50A Suitable for 33/11 kV Gas
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AI Customer ServiceThis Engineering Equipment Specification (EE SPEC) defines the requirements for substation 110V batteries, battery chargers, dc distribution boards & associated auxiliary cabling which
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AI Customer ServiceThe primary role of the substation battery system is to provide a source of energy that is independent of the primary ac supply, so that in the event of the loss of the primary supply the substation control systems that require energy to operate can still do so safely.
Substation auxiliary supplies shall be designed and installed in accordance with TS 2.12 (RES). Protection relays and circuits associated with equipment owned by Users (e.g. generating companies, distribution companies or directly connected consumers) shall be accommodated in separate panels from those associated with equipment owned by NGET.
The battery is required to supply the DC electrical requirements of the substation, including SCADA, control, protection indication, communications and circuit breaker switching operations when there is no output from the battery charger. This may be due to a loss of AC supply to the substation or a fault in the battery charger.
The absolute minimum requirement is that the battery has sufficient energy to allow the substation to be made safe on loss of ac supply. A secondary requirement is to provide high capacity support to the battery charger for operating high current transient loads that are beyond the charger's capability.
3.3.1. Battery Chargers shall be operated from a 230V single phase or 415V 3 phase 50 Hz AC supply from a dedicated output from the substation LVAC distribution board. 3.3.2. The AC input is to be connected to the system via a Surge Protection Device (SPD) to BS EN 61643-11 that will protect the DC system against surge conditions on the AC supply.
Substations shall meet the system requirements detailed in TS 1.0 (RES) and shall be designed & constructed in accordance with BS7354. No additional requirements specified. Neutral earthing of the NGET system at various voltages is defined in TS 1.0.
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