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Section 5. Electric power plants
Generators and synchronous compensators. Placement and installation of generators and synchronous compensators
Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)
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5.2.57. The distances from generators and synchronous compensators to the walls of buildings, as well as the distances between them, must be determined according to the technological conditions, however, they must not be less than those given in 5.1.11 - 5.1.13.
The dimensions of the machine room should be selected taking into account:
1) the possibility of installation and dismantling of units without stopping the operating units;
2) the use of cranes with special, mostly rigid gripping devices that allow full use of the crane stroke;
3) refusal to lift and lower individual long, but relatively light parts of the unit (rods, rods) by a crane with their installation with special lifting devices;
4) the possibility of placing components and parts during installation and repair of the unit.
5.2.58. The foundation and design of generators and synchronous compensators must be designed so that during operation of the equipment, the vibration of the equipment, foundation and building does not exceed the values established by the standards.
5.2.59. It is allowed to install compressed air collectors near hydro generators.
5.2.60. Turbine generators and synchronous air-cooled expansion joints and hydroelectric generators must have devices for extinguishing a fire with water. Other devices may also be used.
On hydro generators of automated hydro stations, as well as on synchronous air-cooled compensators installed at substations without constant personnel on duty, fire extinguishing should be carried out automatically. The locking devices for water inlet to the machine are put into operation either directly from the differential protection, or with the simultaneous operation of the differential protection and special fire extinguishing sensors.
The water supply must be made in such a way that the possibility of water seepage into the generator and the synchronous compensator under operating conditions is completely excluded.
5.2.61. The fire extinguishing system of hydro generators must provide for the removal of used water to the drainage system.
5.2.62. To extinguish a fire in turbogenerators and synchronous compensators with indirect hydrogen cooling, when the machine is operating in air (adjustment period), it must be possible to use a carbon dioxide (nitrogen) installation, performed in accordance with the requirements of 5.2.15, clause 2.
5.2.63. Cylinders with carbon dioxide (nitrogen) installed in the central carbon dioxide (nitrogen) plant must be stored under conditions determined by the rules of the Gosgortekhnadzor of Russia.
 See other articles Section Rules for the installation of electrical installations (PUE).
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