short-circuit-mitigation

Name: short-circuit-mitigation
Author: Power-Agent

56stars12forks

How to install short-circuit-mitigation?

power-agent/powerskills/short-circuit-mitigation

$npx -y skills add Power-Agent/PowerSkills --skill short-circuit-mitigation

Installs into the current project.

Summary

Senior power-engineer playbook for excessive fault current and breaker over-duty. Use whenever a short-circuit study shows fault duty above interrupting ratings, or a new interconnection raises fault levels near equipment limits. Triggers on "fault duty", "breaker over-duty", "sh

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SKILL.md

1	# Short-circuit mitigation
2
3	Start with the over-dutied buses and breakers, the fault type, and the study assumptions that produced them.
4
5	## Preferred action order
6	1. Confirm the duty is real: machine subtransient data, motor contribution, pre-fault voltage assumption, fault type (three-phase vs single-line-to-ground), and the X/R used for asymmetry — over-duty findings are often data findings.
7	2. Apply operational fixes first: split buses, open bus-tie or loop points, and re-dispatch nearby generation where switching alone relieves the duty.
8	3. Add impedance on the offending paths: series reactors or higher-impedance transformer choices for new connections.
9	4. Screen fault-current limiters where switching and impedance are not enough.
10	5. Recommend breaker replacement or uprating as the planning fix, with an interim operating guide until installed.
11
12	## Working rules
13	- Check maximum (all-sources-in) and minimum (credible outage) fault cases — protection settings need the minimum, breaker duty needs the maximum.
14	- Single-line-to-ground duty can exceed three-phase duty near grounded transformer banks; do not screen on three-phase faults alone.
15	- Bus splitting changes power-flow transfer paths and N-1 performance; re-run the contingency screen after any topology fix and route findings to `contingency-mitigation`.
16	- Keep the protection engineer in the loop: any fix that changes fault levels changes relay reach.
17
18	## Deliver
19	- The over-dutied equipment, its rating basis, and the computed duty.
20	- The mitigation sequence tried, from switching to reinforcement.
21	- The residual duty margin and any protection re-coordination still required.

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short-circuit-mitigation

56stars12forks

View on GitHub

How to install short-circuit-mitigation?

power-agent/powerskills/short-circuit-mitigation

$npx -y skills add Power-Agent/PowerSkills --skill short-circuit-mitigation

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Short-circuit mitigation
2
3	Start with the over-dutied buses and breakers, the fault type, and the study assumptions that produced them.
4
5	## Preferred action order
6	1. Confirm the duty is real: machine subtransient data, motor contribution, pre-fault voltage assumption, fault type (three-phase vs single-line-to-ground), and the X/R used for asymmetry — over-duty findings are often data findings.
7	2. Apply operational fixes first: split buses, open bus-tie or loop points, and re-dispatch nearby generation where switching alone relieves the duty.
8	3. Add impedance on the offending paths: series reactors or higher-impedance transformer choices for new connections.
9	4. Screen fault-current limiters where switching and impedance are not enough.
10	5. Recommend breaker replacement or uprating as the planning fix, with an interim operating guide until installed.
11
12	## Working rules
13	- Check maximum (all-sources-in) and minimum (credible outage) fault cases — protection settings need the minimum, breaker duty needs the maximum.
14	- Single-line-to-ground duty can exceed three-phase duty near grounded transformer banks; do not screen on three-phase faults alone.
15	- Bus splitting changes power-flow transfer paths and N-1 performance; re-run the contingency screen after any topology fix and route findings to `contingency-mitigation`.
16	- Keep the protection engineer in the loop: any fix that changes fault levels changes relay reach.
17
18	## Deliver
19	- The over-dutied equipment, its rating basis, and the computed duty.
20	- The mitigation sequence tried, from switching to reinforcement.
21	- The residual duty margin and any protection re-coordination still required.

People who liked this also viewed

6 picks

Type