Experimental investigation of apparatuses for electrical braking of 215 MW hydroelectric generators

Journal Article · Sun Nov 01 04:00:00 EST 1981 · Sov. Power Eng. (Engl. Transl.); (United States)

OSTI ID:6266587

Gruzdev, I A; Ivanov, S A; Ragozin, A A

The design, operation and performance of electric braking device for electric generators in hydroelectric power plants are discussed. Tests performed to determine the efficiency and parameters of the basic equipment for electrical braking devices and to investigate the electromechanical transient processes and to compare experimental and calculated results are described. It was found that the reliability of operation and the speed of the power portion of the electric braking device on generator voltage is fairly high. The activation time and shutoff time of the resistors without accounting for the detection portion of the control scheme does not exceed 0.04 s. A significant change in resistances of the resistors from the moment of installation of the braking device, even without activation under load was found. This results in a need during operation to monitor the resistances of the resistors and, if necessary, correct the controlling effects from the braking device. Calculations and experimental studies confirmed the fairly high efficiency of the braking devices of hydroelectric generators at the Zeiskaya Hydroelectric Power Plant under conditions of the existing scheme for power transmission. Similar devices can be recommended for use at power plants where there is a severe problem with regard to dynamic stability. (LCL)

• OSTI ID: 6266587
• Journal Information: Sov. Power Eng. (Engl. Transl.); (United States), Journal Name: Sov. Power Eng. (Engl. Transl.); (United States) Vol. 10:11; ISSN SVPEA
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130300* -- Hydro Energy-- Plant Design & Operation
ASIA
BRAKES
DATA
DESIGN
EASTERN EUROPE
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
EQUIPMENT
EUROPE
EXPERIMENTAL DATA
HYDROELECTRIC POWER PLANTS
INFORMATION
MACHINE PARTS
NUMERICAL DATA
PERFORMANCE
POWER PLANTS
RELIABILITY
USSR