BTS POWER

Field software, built in the field, for HV engineers.

Tools made by working Commissioning Engineers and time-served SAPs, not by a software house guessing what site work looks like. Offline-first, standards-faithful, and refined on real site work.

Android app

BTS Toolbox

Protection and commissioning field tools: the relay wizardry, trip calculations and lookups an engineer actually reaches for, working entirely offline in the switchroom.

Android 100% offline Licensed per device
  • Relay wizards that look like the relay. VIP300 dials, VIP200 DIP switches, Sepam and Terasaki, faithful to the fascia in your hand.
  • IDMT operating times. IEC and IEEE curves, bidirectional, with CT ratio handling and the multiples commissioning actually uses.
  • LV breaker trip units. Schneider ComPacT/Micrologic and ABB SACE families.
  • CT tools. Ratio, polarity checks and clamp-on meter lookups.
  • Site lookups. HV test voltages (IEC 60502-2, IEEE 400.2), cable ampacity, transformer vector groups, bolt torque, TLF selection.
⬇ Download BTS Toolbox Request a licence

v1.5.1 · 18 MB · Android 8.0+ · free to install. A licence (or 7-day trial) unlocks the tools.
Android will ask permission to install apps from your browser; that's expected for software distributed outside the Play Store.
SHA-256 cc002eac610a2c30d121a198dced8e088a6133da9084009d4d3e8caee18ed6e1

  1. Install and open. The app shows a device code unique to your handset.
  2. Email it to us. Tap Email licence request in the app and it fills everything in for you (or use the button above from a desktop).
  3. Paste back the key we send, and you're licensed. Ask for the 7-day trial to try before you buy.
First install? Android shows a warning. Here's the 20-second version

Because it isn't from the Play Store, Google Play Protect blocks it once with a scary-looking screen. It's safe; you just have to tell it to continue. The catch: the big blue OK button cancels the install. Do this instead:

Play Protect warning: tap More details, not OK
Tap More details (not OK).
Play Protect warning expanded: tap Install anyway
Then Install anyway.

You'll also need to let your browser install apps the first time; Android walks you through that in a tap or two.

BTS Toolbox VIP300 relay wizard with true-to-fascia dials
BTS Toolbox home screen: protection and commissioning field tools
Web · tablet · desktop

SLD Platform

Single-line diagrams and switching schedules for MV/HV sites. Walk the site with a tablet, lay out the drawing at your desk, print SLDs and staging diagrams for planned works.

Works offline IEC 60617 symbols No install needed
  • Survey on site. Capture substations, switchgear and connections on a phone or iPad, no signal required; share the site file when you're done.
  • The diagram is the data. One network model drives the SLD, the asset register and the schedules. Nothing drawn twice.
  • DNO-style switching schedules. Isolation and earthing sequences generated from the drawing; save and recall planned works.
  • Print-ready sheets. Formal drawing sheets and switching documents straight to PDF.
Open SLD Platform Runs in the browser; add it to your home screen on site.
sld.btspower.co.uk
SLD Platform: an 11 kV ring network drawn with IEC 60617 symbols
Operations · live network state
SLD Platform Operations: every device and conductor coloured by live network state