TM 5-810-15
CHAPTER 10
ELECTRIC SYSTEMS
This chapter addresses the criteria for the electric power system in a steam plant.
a. Design requirements. The electrical requirements for the steam plant are the same as those for the steam
generating equipment of an electric power generating station as covered by TM 5-811-6.
b. The following sections of chapter 4 of TM 5-811-6 are applicable to the design of the steam boiler plant
electrical requirements:
(1) Station service power system (section VL). Station service power systems for a 200,000 pph boiler
addition is about the equivalent to a 20,000 kw power plant steam turbo-generator addition. Steam
generators of 200,000 pph and above will require a 4.16 kv auxiliary bus to supply the larger motors--
particularly boiler draft fans. Boilers below 200,000 pph can be accommodated with a 480 volt power supply.
(2) Emergency power system (section VII). Emergency power system applies to the steam boiler plant
with the exception that the battery requirements will be less because the system will not be required to supply
emergency power to any lube oil pumps.
(3) Motors (section VIII). This section covers the motor requirements to be used in the steam boiler
plant design.
(4) Communication systems (section IX). This section covers the communication system requirements
to be used in the steam boiler plant design.
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