Energy Systems Management

We bring more than 30 years of technical experience in oil & gas industry, transportation, and infrastructure support.

Electrical Calculations

Electrical Load List
Voltage Drop Calculations
Cable Ampacity and Try Fill
Panelboard Sizing
Power Transformer Sizing
Conduit Fill Calculations
Cable Pulling Calculations

Electrical Detail Design

One-line Diagrams (Overall, RM) for System, Switchgear, and MCC
Three-line Diagrams
PDC Layouts
Relay and Communication Panels
Grounding Plans and Details
Cable Tray Plans and Details
UG Plans and Details
Power Plans and Details
Lighting Plans and Details
Wiring Diagrams
Cable Schedule

Power Systems Analysis

Load Flow
Short Circuit
Static and Dynamic Motor Start
Arc Flash
Relay Coordination
Relay Settings
Grounding –System, Equipment, Isolated

Electrical Calculations

Electrical Load List

The electrical load list provides a summary of all electrical loads for purposes of estimating electrical power distribution equipment ratings. The electrical load list constitutes the basis for the development of one-line diagrams and definition of power system configuration.

Voltage Drop Calculations

Voltage drop calculations are required to determine the minimum voltage levels of operation at the point of connection of the electrical load. These calculations are also essential to determine the minimum number and size of electrical conductors in a distribution system.

Lighting Calculations

Lighting calculations for minimum lumens levels are provided in accordance to the IESNA, or any other applicable standards, for specific areas of operation for indoor or outdoor.

Cable Tray Fill

For above ground cable routing, cable tray fill calculations are performed in accordance with the NFPA 70 requirements in order to ensure the maximum cable tray fill is not exceeded, including any cable tray fill spare capacity.

Cable Ampacity (AG & UG)

Ampacity calculations are necessary to determine minimum cable rating and type for above ground and underground applications.

Panel Board Sizing

Panel board calculations provide the circuit breaker/fuses sizes for low voltage power distribution according to code requirements.

Power Transformer Sizing

Ensure power transformers are capable to supply power adequately to new system and future expansions.

Conduit Fill Calculations

For above ground and underground installation, these calculations determine maximum conduit fill according to code requirements for new installation and future expansions.

Cable Pulling Calculations

These calculations ensure the integrity of cable trays, raceways, and cables during cable installation.

Power System Analysis

Load Flow

Load flow to determine steady state power flows, and voltages within the electrical system.

Short Circuit

For any given electrical system fault scenarios, the short circuit analysis determines the maximum ratings of electrical equipment to ensure safe operations.

Motor Start (Static & Dynamic)

Large motor start currents impose certain stress in the electrical system and equipment. This analysis provides the capability of the system to start a large motor, and guidance to mitigate currents exceeding system limits.

Arc Flash

An Arc Flash Assessment/Analysis is a study of the facility’s power system to determine the incident energy available at specific electrical devices that employees would be exposed to while “interacting with” the electrical equipment at the facility.

Relay Coordination

Under any electrical fault in the distribution system, this study determines the how such fault must be isolated to minimize impacts to all other parts of the system and continuous operation is guaranteed in a safe manner.

Relay Settings

Relay settings provides the timing to trigger circuit breaker tripping across the electrical system to ensure continuous operation.

Electrical Detail Design for Industrial, Utilities, and Critical Infrastructure

One-line Diagrams

Diagrams for system, switchgear, and MCC define electrical power system configuration at high, medium, and low voltage substations. It also provides electrical relaying schemes for power system protection and communication interfaces with SCADA, DCS, and power management systems.

Three-line Diagrams

Three-line diagrams are prepared as a result of further working on the basis of a SLD as they provide details for electrical wiring connections. Three-line diagrams are a part of the detailed design document, and are used for control when designing circuit diagrams, control circuits, phase sequencing, differential relay settings, and metering transformer connections. any given electrical system fault scenarios, the short circuit analysis determines the maximum ratings of electrical equipment to ensure safe operations.

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