Services / Studies & Protection

Engineering service

Electrical Studies & Protection

We analyze the behavior of your electrical system to ensure its safety, efficiency and regulatory compliance. We model and simulate with world-class software — DIgSILENT PowerFactory, ETAP and NEPLAN — and take protection coordination all the way to real verification: we program, set and test the relays with OMICRON CMC 356 secondary injection.

Electrical Studies

The complete analysis portfolio for industrial, commercial and generation electrical systems, at low, medium and high voltage.

Load Flow

Voltage profiles, line and transformer loading, technical losses and power balance to size and optimize the network.

IEC 60909 · ANSI C37

Short-Circuit

Calculation of fault levels (three-phase, phase-to-phase, single-phase) to verify the breaking and withstand capacity of equipment and circuit breakers.

Protection Coordination

Selectivity and time-current curves (TCC) so that during a fault only the nearest protection operates, minimizing the affected area.

IEEE 1584 · NFPA 70E

Arc Flash

Incident-energy calculation and safety distances, PPE definition and risk labeling to protect switching personnel.

Stability

Dynamic and transient analysis (RMS/EMT) of the system response to disturbances, faults and switching of large loads or generators.

IEEE 80 · IEEE 81

Grounding Systems

Design and assessment of the grounding grid: soil resistivity, GPR, step and touch voltages for the safety of people and equipment.

IEEE 519

Power Quality / Harmonics

Assessment of harmonic distortion, flicker and unbalance; design of filters and solutions to meet regulatory limits.

Motor Starting

Motor starting simulation: voltage drop, available torque and effect on the network to select the appropriate starting method.

Grid Connection Studies

Assessment of the impact of new loads or generation and grid-code compliance for connection to the operator (including solar plants).

Voltage Regulation & Stability

Analysis of voltage drops and regulation, reactive compensation and capacitor-bank placement to maintain supply quality.

Ampacity & Cable Sizing

Verification of gauge, current-carrying capacity and voltage drop of conductors according to the load and installation conditions.

Contingency & Reliability

Contingency analysis (N-1), reliability indices and assessment of service continuity in the event of element outages.

ADT engineer configuring a protection relay with the CMC 356

Relay configuration

Secondary injection

Protection testing on medium-voltage switchgear

On-site testing

Our differentiator

We don't just coordinate: we configure and verify

Protection coordination does not end with the report. At ADT we take the study to reality: we program, set and configure the protection relays according to the coordination, and we perform secondary injection with the OMICRON CMC 356 to verify on site the curves of the configured protections.

Relay programming and setting
Configuration according to the coordination
Secondary injection with the CMC 356
Verification of curves and settings
Trip testing and operating times
Commissioning and regulatory report

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EquipmentOMICRONCMC 356

OMICRON CMC 356 — Relay test set

The CMC 356 is the universal solution for testing all types and generations of protection relays. With six powerful current sources (up to 64 A per channel in three-phase mode) it tests even high-burden electromechanical relays, and it allows secondary and primary injection for commissioning tasks.

Testing of static, numerical and electromechanical relays
High-precision secondary injection
Test Universe software (manual and automated)
Verification of curves and coordination

CMC 356 Datasheet (PDF) View on OMICRON

Analysis Software

We model and simulate with the world-reference platforms for power-systems analysis.

DIgSILENT PowerFactory

Powerful platform for transmission and distribution network analysis: load flow, short-circuit, small-signal stability, EMT and protection.

Reference

ETAP

Electrical Transient and Analysis Program: network analysis, arc flash, protection coordination, DC and control systems, and much more in an integrated environment.

Reference

NEPLAN

Power-systems analysis tool used in more than 110 countries: load flow, short-circuit, stability, reliability and power quality.

Reference

We apply the current regulations (RETIE, NTC 2050, IEC, IEEE and NFPA 70E) in all our studies. Do you need an electrical study or the verification of your protections? Contact us.

Electrical Studies & Protection