Electrical OM NEC-IN
Electrical OM NEC-IN is a Powerful, Fast & Accurate software tool for Electrical Design. Using the software, the user can model the electrical installation quickly and easily by performing simple tasks while the software acts interactively performing automatic calculations, and checks and automatically creating all schematic diagrams. The software can be used for all Low Voltage Electrical with unlimited Distribution circuits, Loads and Sources.
Electrical OM NEC-IN is India’s first electrical design software providing comprehensive design, modelling and calculations to NEC 2023 (SP 30).
The following modelling can be done in the software with as per the standards.
1. Cable Sizing
Cable sizing calculations for phase, neutral and earthing conductors are based on the following criteria:
- • Source characteristics (earthing system, fault levels etc)
- • Load current
- • Voltage drop
- • Short circuit and Earth fault currents
- • Protective devices disconnection time
- • Cable energy withstand based on the Protective devices let-through energy
- • Earth fault loop impedance checks
- • Use of earth fault protection/RCD devices
- • Touch voltage limit
- • Unbalanced load
- • Power factor
- • Harmonics
- • Motor starter type (direct on-line, star-delta, soft-start etc.)
- • Motor starting current
- • Motor minimum starting voltage
- • Motor contribution to short circuit
- • Integrated AC & DC Systems
- • DC Battery Characteristics
2. User Friendly Indications And Checks
During the electrical design Electrical OM NEC-IN acts interactively and indicates to the user useful information and calculations. Instead of having a centralised calculation button the software intelligently re-calculates the circuits with any change and produces quick and useful indications so the user understand what's being affected during the change.
- • Detailed warnings in each affected circuit
- • Warnings are grouped based on severity
- • Warnings can be easily reviewed, filtered and printed
3. Powerful Library
Constant updating library with details of productive devices and cables of internation and local Manufactures.
4. Correction Factors
Correction factors affect the cable size selection. Electrical OM NEC-IN considers the following correction factors during the cable sizing calculations:
- • Ambient temperature
- • Run through thermal insulation
- • Grouping factor
- • Installation in ground
- • Underground installation depth
- • Ground soil thermal resistivity
- • Correction factor for using fuse
- • Correction factor for triple harmonic currents
5. Power Factor Correction Calculations
- • User Defined Size and Correction Level
- • Comparison With or Without the Correction
- • Saving Using Power Factor Correction
- • Detailed Report
- • Define Capacitor Bank Steps
- • Power Factor Panel Diagram
6. Discrimination (Selectivity) Study
ELECTRICAL OM NEC-IN checks all the protective devices in the electrical installation and warns the engineer about any discrimination problems discovered.
- • Manufactured specific curves and settings
- • Over-current and earth fault discrimination checks
- • Time-Current curve checks
- • Energy-based discrimination checks
7. Detailed and Comprehensive Reports
An intuitive and user-friendly reporting environment allows the user to choose the reports to print and including with the cover and contend pages. Reports can be directly printed or exported to pdf, document or excel formats. Various calculation reports are available:
- • Source report
- • Circuits schedule
- • Brief calculations
- • Analytical calculations
- • Voltage Drop analysis
- • Zs -Earth fault loop impedance
- • Power factor correction
- • Bill of quantities
- • Single line diagrams