Electrical Settings
& Studies
Do your relay settings still reflect your system as it exists today? When system topology changes, generation comes online, or new equipment is added, protection coordination needs to be reverified. N2 does that work with the rigor it deserves.
What we deliver
Settings that match your system as it actually is.
Relay settings that haven't been reviewed since the system was first built are a liability. When someone adds a capacitor bank, changes transformer tap positions, or extends a feeder, the original coordination may no longer be valid. N2 verifies from the ground up.
Protection coordination studies
Time-current curve analysis ensuring coordinated fault clearing from substation to feeder, with proper selectivity between relay zones.
Short circuit studies
Fault current calculations for three-phase, line-to-ground and line-to-line faults at each bus, verified against equipment ratings.
Relay settings packages
Complete, documented settings files for each relay — formatted for your relay platform and cross-referenced to the coordination study.
Settings verification
Field verification that programmed relay settings match the approved settings package, with documentation of any discrepancies found.
When a study is warranted
- New relay commissioning requiring initial settings development
- System topology changes that affect fault current levels or coordination
- Settings that haven't been reviewed since original installation
- Misoperations or nuisance trips requiring root-cause analysis
- Relay replacement projects where settings must be translated to a new platform
- NERC PRC/FAC compliance obligations and audit support
Service Detail
Studies
- Short circuit and bus fault studies
- Protection coordination studies and relay settings
- Arc-flash studies
- Load flow, voltage drop and motor-starting studies
- Distribution studies: sectionalizing, capacitor placement, substation siting
Settings development
- System protection settings, 115kV–500kV
- Line protection: distance, directional overcurrent, reclosing, pilot schemes
- Line differential and bus differential
- Transformer differential, restricted earth fault, overcurrent backup
- Feeder and distribution protection
- Breaker failure
Quality assurance & compliance
- NERC PRC/FAC compliance and PRC compliance auditing
- Settings-file reviews and test-plan quality assurance
- Short circuit analysis review
- Relay test plans and calculation sheets
- Peer review of relay setting projects
- Configuration management of field work versus prints
Frequently asked questions
Common questions
How do I know whether we need a full coordination study or a targeted review?
It depends on how much your system has changed since the last study and whether the original model still exists. Tell us what's changed and we'll give you a straight answer — sometimes a targeted review of a few zones is enough, and we'll say so.
Do we get the study files, or just a report?
You get both. We hand over the coordination and short-circuit models alongside the settings packages so your team, or any engineer you hire later, can rerun the analysis as the system evolves.
Can you develop settings for a relay platform we're moving to?
Yes. Translating settings to a new platform is one of the most common requests we get on relay replacement projects. We develop the new settings from the coordination study rather than transcribing the old ones.
When was your last coordination study?
If you can't remember, it's probably time.
We'll tell you honestly whether a full study is warranted or whether a targeted review is enough.