1 Scope
This national standard specifies the installation, debugging of hydraulic turbine generator units and the requirements of test. It is applicable to the installation and/or acceptance of hydraulic turbine generator units in compliance with the following conditions:
a) Unit capacity of 15MW and/or higher
b) Impulse hydraulic turbine with its nominal diameter of runner at 1.5m and/or above
c) Radial-axial flow turbine with its nominal diameter of runner at 2.0 m and/or above
d) Axial flow, mixed flow variable pitch turbine, and tubular turbine, with nominal diameter of runner at 3.0m and/or above.
Hydraulic turbine generator units with unit capacity smaller than 15MW and units with nominal diameter of turbine runner smaller than that specified in b), c), and d).
This national standard is applicable to the installation and/or acceptance of reversible pump storage unit.
2 Normative references
The following normative documents contain provisions, which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, it is recommended parties reaching agreement according to this national standard carry out a study on if the most updated version of these documents may be applied or not . For undated reference, the latest edition of the normative document referred to applies.
GB3323 Methods for radiographic inspection and classification of radiographs for fusion welded butt joints in steel
GB/T7409.3 Excitation system for synchronous electrical machines-Technical requirements of excitation system for large and medium synchronous generators;
GB/T7894 Fundamental technical requirements for hydraulic turbine generators;
GB/T9652.1 Specifications of governors and Pressure oil supply units for hydraulic turbines;
GB/T9652.2 Test acceptance codes of governors and pressure oil supply units for hydro-turbines;
GB/T10969 Specifications for water passage components of hydraulic turbines;
GB/T11120L-TSA Turbine Oil;
GB11345 Method for manual ultrasonic testing and classification of testing results for ferritic steel welds;
GB/T18482 Start - up test code for reversible pump - storage units;
GB50150 Emending explanation of Standard for hand-over test of electric equipment electric equipment;
GB50168 Code for construction and acceptance of cable levels electric equipment installation engineering;
GB50171 Acceptance of switchboard outfit complete cubicle and secondary Circuit Electric Machine;
DL/T507 Start-up test code for hydraulic-turbine and generator units;
DL/T679 Code for welder technical qualification;
DL/T827 Start-up test code for bulb tubular hydraulic-turbine and generator units;
JB/T4709 Welding specification for steel pressure vessels;
JB/T6204 Specification for withstand voltage test on stator coil and winding insulation of high voltage AC machines;
JB/T8439Technical requirements on suppress corona of high-tension machines used in high altitude areas
JB/T8660 Standard for hydroelectric set packing, transportation and preservation
3 General principles
3.1 Installation of hydraulic turbine generator unit shall proceed according to this national standard in compliance with the installation drawing approved by design organization and manufacturer as well as related technical documents. Special requirements raised by the manufacturer shall be satisfied according to related technical documents. Supplementary provisions for requirements not listed in this standard and technical documents of manufacturer shall be specified additionally. In case of a conflict between the technical requirements from the manufacturer and this standard, generally, the requirements of the manufacturer shall proceed. Otherwise, consult with the manufacturer for a settlement.
1 Scope
2 Normative references
3 General principles
4 General regulations
5 Installation of vertical type reaction turbine
5.1 Installation of built-in fitting
5.2 Runner installation
5.3 Preassembling of the guide apparatus
5.4 Emplacement and installation of rotatable parts
5.5 Installation and adjustment of guide blade and/or servomotor
5.6 Installation of water conduit and main shaft seal
5.7 Installation of fittings
6 Installation of tubular turbine
6.1 Installation of built-in fitting
6.2 Installation of principal axes
6.3 Installation of guide apparatus
6.4 Installation of guide apparatus
6.5 Installation of the principal axes, runner and runner chamber
7 Installation of impulse turbine
7.1 Installation of diversion conduit
7.2 Installation of case
7.3 Installation of the bearing of turbine shaft
7.4 Installation of turbine shaft
7.5 Installation of sprayer and servomotor
7.6 Installation of runner
7.7 Installation and adjustment of control mechanism
8 Installation and debugging of speed regulating system
8.1 Installation and debugging of oil pressure devices
8.2 Installation of speed governor
8.3 Oil filling adjustment test of speed regulating system
8.4 Simulation test of speed regulating system
9 Installation of vertical type hydraulic turbine generator
9.1 Combination of framework
9.2 Grounding and scraping of bearing shell
9.3 Stator installation
9.4 Rotor installation
9.5 Overall installation
9.6 Installation of excitation system and devices
10 Installation of horizontal hydraulic generator
10.1 Grounding and scraping of bearing bush
10.2 Installation of bearing pedestal
10.3 Installation of stator, rotor and/or fitment
10.4 Checking of each part of the bearing and clearance adjustment
11 Installation of bulb-type hydraulic generator
11.1 Installation of stator
11.2 Installation of rotor
11.3 Installation of principal axes and composition bearing
11.4 Generator installation
12 Installation of tube and fitments
12.1 Fabrication of tube fittings and fitments of tube
12.2 Tube welding
12.3 Installation of tube
12.4 Treatment of the inner wall of tube
12.5 Test of the conduit and tube fittings
13 Installation of butterfly valve and ball valve
13.1 Installation of butterfly valve
13.2 Installation of ball valve
13.3 Installation of flexible connector
13.4 The installation of hydraulic control valve and air valve
13.5 Installation of operating mechanism
14 Electrical test of hydraulic turbine generator unit
15 Trial run of hydraulic turbine generator unit
15.1 General specifications
15.2 Water filling test of assembling unit
15.3 Zero load trial run of unit
15.3.1 Operational check of unit mechanism:
15.3.2 Adjustment and test of speed regulator:
15.4 Test over paralleling in of unit and under load
Annex A
Annex B
Annex C
Annex D
Annex E
Annex F
Annex G
