Profile: P & B Weir Electrical is a designer and manufacturer of portable earthing equipment, Buchholz relays, golds' motor protection relays and electrical instruments. We produce portable earthing equipment for use on overhead lines and in sub-stations at both transmission and distribution voltages. Our other products are maximum demand indicators, Buchholz transformer protection relays, educational instruments, power supplies and equipment for use upon the rail network such as track circuit operating devices, short circuiting straps and earthing equipment.