Based on the amazing Ace editing component, Caret brings professional-strength text editing to Chrome OS. With Caret, you no longer need to install a second OS to get what other platforms take for granted: a serious editor for local files, aimed at working programmers.
Operating at over 1 kV, used in utility transmission and industrial substations.
Allows technicians to perform maintenance safely. Load Switching: Manages operational current changes. Fault Protection: Prevents catastrophic system failures. 2. Essential Components of Switchgear Systems
The Safety and Maintenance section outlines the data required: Available fault current from the utility (usually on the one-line diagram), clearing time of the upstream protective device, and the working distance (typically 18 inches for low-voltage switchgear). It cross-references NFPA 70E and shows the calculation for incident energy, allowing the team to correctly label the equipment with the proper calorie rating for PPE. switchgear and control handbook
Managing the flow of power by switching circuits on or off based on demand.
Step down high currents to measurable levels for relays. Operating at over 1 kV, used in utility
It allows operators to safely energize or de-energize specific circuits within a complex grid.
Maya’s hands flew to the handbook. She didn’t read; she fell into it. Chapter 8: Selective Coordination . Chapter 14: Trip Curves and Time Delays . And there, in a yellowed footnote, the answer: “Modern numerical relays may mask saturating CTs (Current Transformers) during high-impedance faults. The backup electromechanical relay is the true last line of defense.” Fault Protection: Prevents catastrophic system failures
A professional-grade serves as a vital resource for electrical engineers, designers, and technicians. It generally covers the following, as found in the second and third editions of the Smeaton Handbook : A. Design and Engineering Principles
"Rack it out," Thorne ordered, meaning: use the hand-crank to withdraw the circuit breaker from its cubicle to a disconnected, grounded position.
Switchgear refers to the collection of electrical disconnect switches, fuses, or circuit breakers used to control, protect, and isolate electrical equipment. Control systems include the relays, panels, and digital interfaces that monitor and direct these operations. Key Functions
Detailed technical data on busbars, insulation, and protection devices.
If you're running Chrome, you can install Caret directly from the Chrome Web Store. You don't need to be logged into a Google account, but some features (like synchronized settings) won't work unless you are.
If you're a little paranoid about installing code from a walled garden (and who could blame you?), or you want to run the very latest version, you can also install Caret directly from this website by saving this file and dragging it onto your Extensions page in Chrome. You'll still get automatic updates on the "beta channel" this way. You can also clone the repo and install it as an "unpacked extension" from the Chrome extensions page, but then you'll have to remember to update on your own.
Like all good developer tools, Caret is 100% open-source under the GPLv2. Visit the GitHub repository to view the code, file bugs, or contribute yourself. Any help is welcome and much appreciated! You can also report bugs via the store support page.
The best way to ensure privacy is not to gather your information in the first place. I have no experience (or interest, honestly) in managing user data, so there is no tracking code built into Caret, and it never sends any of your information over the network. In fact, Caret requests no network access permissions from Chrome, so it's incapable of communicating beyond your local machine even if I wanted it to.
Caret does use Chrome APIs for synchronizing your settings between computers and checking for updates. Synchronized storage is linked to your Google account, encrypted according to your Chrome settings, and does not provide any personally-identifiable information when used. None of that information ever gets back to me.
Caret is written by Thomas Wilburn, with a little help from open-source contributors.
Ace is a project of Cloud9 and Mozilla.
Chrome, of course, is a product of Google through the Chromium Project.