Power Machines India Limited

Francis turbines, output range to 720 MW, head range 18 to 700 m.

Kaplan turbines, output range to 300 MW, head  range 5 to 70 m.

Features:

• Single-cylinder condensing steam turbine with three points of non-variable  steam extractions for regeneration.

• Provision is made for an additional non-variable  steam extraction for station services.

• The turbine is delivered skid-mounted and no dismantling is needed during erection. Turbine length is 7.6 m., required minimum height of the traveling crane main hook with reference to the turbine service floor is 7.5 m.

• Electronic part of the turbine control and protection system is adapted to operate with  modern I&C System of the power unit.

• It is possible to modify the turbine meeting  requirements of a  particular Customer.

Operate at a variable speed with a wide range of loads under variable inlet and outlet steam conditions. Condensing and back-pressure driving turbine are designed for direct drive of power unites pumps at Water Stations and Nuclear power plants with capacity range of 300, 500, 800 and 1000 MW and to drive compressor, and also for pumps installed at ammonia process lines; and for marine use as well.

Geothermal steam turbines with output range 17.5 MW and 25 MW allow to use the steam and water of geothermal fields or to utilize the waste heat of industrial plants.

Technical Specifications:

Parameters	К-17-5-Гео	К-23-7-Гео
Rated output, kW	17500	23000
Rated rotor speed, rpm	3600	3600
Main steam conditions rated value:
rated absolute steam pressure,  MPa	0,56	0,7
dryness fraction	0,995	0,995
Absolute steam pressure downsteam turbine, kPa	8,9	11,2
Steam flow rate, t/h	140	170
Condenser type	Water-cooled mixing
Cooling water temperature,oC	33,5 (15-47)	33,5 (15-47)
nominal value (range)
Oil system
oil tank capacity, m3	3,6	3,6
cooling surface of oil cooler, m2	24	24
Overall dimensions, m
turbine weight, t	29	29
turbo-generator weight, t	113	120
condenser mass, t	470	90
turbine foundation height, m	1,4	4,7
height of crane hook above the machine-room floor, m	7,6	13,5

Features:

• Single-cylinder turbines with controlled steam extraction for district heating or for industrial purpose.

• Extracted steam pressure is controlled with rotary diaphragm installed in the extraction chamber.

• Version T-25-3,4 features with two uncontrolled steam extractions for industrial purpose. Air-cooled condenser is used, but no regenerative feed water heating.

• The turbine can be modified in design and regenerative system arrangement for needs of the particular Customer.

• Provision is made for installing the turbines of this type on existing foundations of similar class turbines, in case of their replacement due to expired service life, making the most use of the existing building constructions.

Technical Specifications:

Parameters of the turbine	Т-30-2,9	Т-25-3,4	П-30-2,9
Rated/maximum output, MW	30/31	23/30	30/30,5
Initial steam conditions:
pressure, MPa	2,9	3,4	2,9
temperature, 0C	410	435	435
Live steam rated flow, t/h	220	160	260
Maximum heat-producing capacity of extraction for district heating, GJ/h	290	360	-
Control range of pressure in extraction line for district heating, MPa	0,07-0,12	0,07-0,25	-
Maximum flow rate of steam extracted for industrial purposes, t/h
upstream extraction	60	25	150
downstream extraction	60	50	150
Maximum pressure in extraction line for industrial purposes, MPa:
upstream extraction	0,7	1,46	1,3
downstream extraction	0,7	0,48	1,3
Length of airfoil of last stage moving blade, mm	540	370	540