Title:
【発明の名称】原子炉インターナルポンプ用電源装置
Document Type and Number:
Japanese Patent JP2677581
Kind Code:
B2
Abstract:
PURPOSE:To suppress variation in reactor core flow rate in case of an instantaneous stop by interposing a MG set which insulates and separates an in-office power system and a stationary type variable voltage and variable frequency converting device (VVVF) as a higher harmonic generation source on the upstream side of the VVVF. CONSTITUTION:Breakers 3a and 3b provided by internal pumps are branched and connected to a high voltage bus 2 fed by an input-side cable run 1, and the MG sets consisting of electric motors 10a and 10b and electric generators 11a and 11b which are coupled mechanically with the breakers and driven are connected to the breakers. Then internal pump motors 7a and 7b are connected through breakers 12a and 12b, voltage boosting input transformers 4a and 4b, VVVFs 5a and 5b, and voltage boosting output transformers 6a and 6b. Even if an instantaneous stop is caused and the voltages of the electric motors 10a and 10b drop temporarily, the rotating speeds of the MG sets are maintained by the rotation of the electric motors 10a and 10b and generators 11a and 11b, so the rotations do not vary with inertial force. The outputs of the generator 11a and 11b do not vary, so there is no influence upon the VVVFs 5a and 5b provided on the downstream side and a reactor core flow rate does not vary.
Inventors:
Naoki Asano
Application Number:
JP2766988A
Publication Date:
November 17, 1997
Filing Date:
February 10, 1988
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G21C15/243; F04B49/10; G21C15/24; G21D3/04; H02M7/48; (IPC1-7): G21C15/243; G21D3/04
Domestic Patent References:
| JP60171488A | ||||
| JP59110332A | ||||
| JP5938695A |
Attorney, Agent or Firm:
Norio Ogo