Before revision: Contact terminology upright=1.4|Triple-pole single-throw (TPST or 3PST) knife switch used to short the windings of a 3 ‑phase wind turbine for braking purposes.
After revision: Contact terminology upright=1.4|Triple-pole single-throw (TPST or threePST) knife switch used to short the windings of a 3 ‑phase wind turbine for braking purposes.