Nice Post from Henry Kitchen of Reyrolle Class A switchgear.
The sheer scale of Reyrolle Class-A switchgear never ceases to impress… Class-A gear was available to order for standard service voltages of 6.6, 11 or 22 kV and breaking capacities up to 750 MVA (A3T types, at 11 or 22 kV). The earliest Class-A oil-immersed metalclad switchgear variants were introduced by Reyrolle in the 1911(!), although the design of the switchgear was reworked quite significantly in the late 1930s to accommodate the fitment of turbulators, allowing for increased breaking capacity. Development continued as the decades passed; I believe that production continued into the mid-1960s. The A6T and A7T breakers alongside me here stand at 2.7m tall, and were built on the Tyne between 1953 and 1966. They are still doing sterling service on our 20kV network - a testament to the ingenuity and commitment to quality of the engineers at Reyrolle who designed this equipment so long ago.
Henry Kitchen
4mo
😊
Power and Energy Consultant at The Infinite Orchard
4moInteresting kit😍don't see any relays 🌋