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Object numberCHREM:2013.22
Object categorymeter
Object nameWarren master frequency meter, by Everett, Edgecumbe & Co., ref no. 344116, in timber and glass case
DescriptionWarren master frequency meter, by Everett, Edgecumbe & Co., ref no. 344116, in timber and glass case, brown and cream. The heartbeat of the system - On an alternating current electricity system, all the generating equipment connected to the system must oscillate at the same frequency. This is the 'heartbeat' of the system and any changes to the 'heartbeat' must be carefully controlled. Engineers monitored system frequency constantly to understand the health of their network. Nowadays this is done using electronics, but in the early days of the electricity network, control room engineers regularly compared the live frequency with the time shown on an electric clock like this and with a mechanical clock. The meter showed any short term problems. If the frequency was persistently too high, the electric clock went fast. If it was persistently too low, the electric clock went slow. They could then make decisions about what was happening, and what to tell their power stations to do next.
Production date 1900-01-01 - 1929-12-31
Subjectmeter
Persons keywordEverett, Edgecumbe & Co, London
Dimensions
- Height: 1720 mm
Width: 490 mm
Depth: 340 mm