PowerMetrics India – Smarter Strategies

Engineering Calculation Modules

EHV Cable Design

Design and verify EHV power cables based on thermal limits, voltage drop, and short-circuit criteria as per IEC 60287, IEC 60840, IEC 62067.

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Lightning Risk Assesment

Decide the Requirement of Lightning Protection System For a Location

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Earthing & Grounding Modules

Design ground grid and check step & touch potentials for substations. IEC IEC 61936-1

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Lightning Protection System Design

Design air termination, down conductors, and earth termination for structures. IEC 62305-3

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Surge Protection Device Selection

Select and coordinate SPDs based on system voltage, exposure, and protection level. IEC 62305-4, IEC 61643-11

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Short-Circuit Current Calculation

Description: Calculate symmetrical and asymmetrical fault currents at different voltage levels. IEC Reference: IEC 60909 (all parts)

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Transformer Sizing & Loading

Select transformer rating based on load demand, losses, and utilization factor. IEC 60076 (series)

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Conductor Sizing

Sizing of conductors based on current, temperature rise, installation method, and short-circuit withstand. IEC 60287,IEC 60949,IEC 60364 and IS 3961

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Short Circuit Force on Conductors

Mechanical force on rigid and flexible conductors during short-circuit conditions. IEC 60865-1 IEEE 605 & IS 8084

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Cantilever / Busbar Support Calculation

Mechanical design of busbar cantilevers considering SC forces, wind, and seismic loads. Standards IEC 60865-1, IEC 61936-1, IEEE 605

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Sag–Tension Calculation

Sag and tension calculation for overhead conductors under different loading conditions. Standards IEC 60826, IS 802, IEEE 738

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Cable Sizing (LV / MV / EHV)

Cable sizing considering current rating, voltage drop, short-circuit temperature rise, and installation method. Standards IEC 60287, IEC 60949, IEC 60502, IS 7098

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Battery Sizing

DC battery sizing for substations including autonomy, aging factor, and duty cycle. Standards IEC 60896, IEEE 485, IS 1651.

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DG Sizing

Description Diesel Generator sizing considering load profile, starting currents, and transient response. Standards IEC 60034, ISO 8528, IEEE 3007 series.

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Power Electronics -Buck Converter

Design inductor, capacitor, IGBT/MOSFET, and Freewheeling Diode.

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Power Electronics -Boost Converter

Design inductor, capacitor, IGBT/MOSFET, and Freewheeling Diode.

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