Circuit Design Fundamentals & Power Schematics
Engineering robust, compliant, and optimized electrical layouts for industrial plants, commercial complexes, and institutions.
Operational Precision Meets Electrical Safety
At Ojha Engineering & Consultancy Services (OECS), our circuit design solutions bridge theoretical precision with real-world operational safety. We specialize in designing complete electrical distribution systems from the ground up, ensuring uninterrupted power flow, minimal line losses, and comprehensive fault protection.
Core Engineering Capabilities
Single-Line Diagrams (SLD)
Load Flow & Demand Calculations
Short-Circuit & Protection Coordination
Statutory Compliance & Safety
Developing detailed primary and secondary SLDs mapping out complete electrical architecture from HT intake to LT distribution boards.
Accurate connected load and maximum demand calculations to size transformers, cables, switchgear, and busbars without over-capitalizing.
Rigorous prospective short-circuit calculations and relay grading (VCBs, ACBs, MCCBs) to isolate localized faults without cascading outages.
Strict alignment with Indian Electricity Rules (IE Rules), Central Electricity Authority (CEA) guidelines, and BIS/IS codes.
Standard Project Deliverables
Every design engagement produces audit-ready documentation and CAD layouts engineered for contractors, site engineers, and regulatory vetting.

