Power plant and system for accelerating a cross compound turbine in such plant, especially one having an HTGR steam supply
An electric power plant having a cross compound steam turbine and a steam source that includes a high temperature gas-cooled nuclear reactor is described. The steam turbine includes high and intermediate-pressure portions which drive a first generating means, and a low-pressure portion which drives a second generating means. The steam source supplies superheat steam to the high-pressure turbine portion, and an associated bypass permits the superheat steam to flow from the source to the exhaust of the high-pressure portion. The intermediate and low-pressure portions use reheat steam; an associated bypass permits reheat steam to flow from the source to the low-pressure exhaust. An auxiliary turbine driven by steam exhausted from the high-pressure portion and its bypass drives a gas blower to propel the coolant gas through the reactor. While the bypass flow of reheat steam is varied to maintain an elevated pressure of reheat steam upon its discharge from the source, both the first and second generating means and their associated turbines are accelerated initially by admitting steam to the intermediate and low-pressure portions. The electrical speed of the second generating means is equalized with that of the first generating means, whereupon the generating means are connected and acceleration proceeds under control of the flow through the high-pressure portion. 29 claims, 2 figures.
- Assignee:
- Westinghouse Electric Corp.
- Patent Number(s):
- US 4007597
- Application Number:
- TRN: 77-010533
- OSTI ID:
- 7314220
- Resource Relation:
- Patent File Date: Filed date 30 Sep 1975
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dual turbine power plant and a reheat steam bypass flow control system for use therein
Dual turbine power plant and method of operating such plant, especially one having an HTGR steam supply