AVR nuclear test power plant. 2. Quarterly report 1972 (1.4.1972 - 30.6.1972)

Automatic translation: The AVR nuclear test power plant was in the 2nd quarter of 1972 with a time availability of 40.34% and a work availability of 38.50% operated. The main cause of this low availability was an approx. 6-week break to install the VAMPYR loop. In addition, was the power operation through 9 planned short-term shutdowns and 1 fault interrupted (see fig. 1, 2 and 3). The 6-week shutdown began on April 4, 1972. In addition to the installation of the Hot gas loops have undergone extensive repair and maintenance work as well carried out a number of TÜV repeat tests. On May 19, 1972 the power plant was put into operation for 2 days to create the conditions for some physical experiments. After completing the measurements and all other work, on May 27, 1972 started the final start-up of the reactor plant. During the start-up, 5 partial load points were used to control the characteristic field Stationary reactor / steam generator started up. The generator was re-synchronized with the network on May 28, 1972 at 12:36 p.m. On May 30, 1972, the turbo group had to be disconnected from the network for about 5 l / 2 hours separated and the reactor shut down, as the steam generator emergency switchover valve from system I due to a leak in the control air line had switched to the mixer cooler. After the control air line was provisionally relocated, the turbo group was again synchronized with the network.