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BSI 24/30457087 DC 2024

BSI 24/30457087 DC 2024

$13.70

BS EN IEC 61116 Electromechanical equipment guide for small hydroelectric installations

Published By Publication Date Number of Pages
BSI 2024 55
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PDF Catalog

PDF Pages PDF Title
7 FOREWORD
9 1 Scope
10 2 Normative references
3 Terms, definitions, symbols and units
3.1 General
3.2 General terminology
13 3.3 Units
4 Methodology
5 Description of installation and operating conditions of power station
5.1 Site conditions
14 5.2 Hydraulic conditions for plant and design criteria for the units
15 5.3 Electrical conditions for plant operation
5.3.1 The plant is intended to operate in isolated grid
16 5.3.2 The plant is intended to operate in parallel with a grid which imposes the frequency
5.3.3 Energy transport and distribution
5.4 Types of regulation and modes of operation
5.4.1 Frequency regulation
17 5.4.2 Power regulation
5.4.3 Level control
5.4.4 Flow regulation
5.4.5 Simplified governing
5.5 Automation, telemetry, remote control, alarms
6 Equipment specifications
18 6.1 Technical requirements
6.2 Limits of the supply
6.2.1 For the hydraulic system
6.2.2 For the electric system
6.2.4 Elements not normally included in the supply
6.3 Specifications of the elements of the plant
6.3.1 Trashrack and rack cleaner
19 6.3.2 Water-level control
6.3.3 Discharge closure devices (see Figure 6)
6.3.3.1 Stop-logs or maintenance gates
6.3.3.2 Intake and head gates and valves
20 6.3.3.3 Inlet valves for unit protection
6.3.4 Penstock
6.3.5 Turbine (see Figure 7)
21 6.3.5.1 Impulse turbine (Pelton, …)
6.3.5.2 Reaction turbine (Francis, Kaplan, propeller, …)
6.3.5.3 Guide and thrust bearings
22 6.3.5.4 Shaft coupling, direct or with speed increaser
6.3.5.5 Monitoring and protection
6.3.5.6 Governing systems
23 6.3.5.7 Auxiliary equipment for the turbine
24 6.3.6 Generator
25 6.3.6.1 Synchronous generators
6.3.6.2 Asynchronous (induction) generator
6.3.6.3 Guide and thrust bearings
6.3.6.4 Monitoring and protection
26 6.3.7 Automatic control system
27 6.3.8 Main transformers (reference can be made to IEC 60076)
6.3.9 Auxiliary equipment
6.3.9.1 Circuit-breakers (reference can be made to IEC 62271-100) The characteristics which should be studied are as follows:
6.3.9.2 Isolating (disconnecting) switches (reference can be made to IEC 62271-102)
6.3.9.3 Auxiliary service transformer (reference can be made to IEC 60076)
6.3.9.4 Measurement and protection transformers
28 6.3.9.5 Capacitor bank (see IEC 60831-1 and IEC 60871-1)
6.3.9.6 Connection with the network
6.3.9.7 Metering
6.3.9.8 Earthing circuit
6.3.9.9 D.C. supply
6.3.10 Spare parts and special tools
29 6.3.11 Mechanical handling
6.3.12 Corrosion protection
6.4 Guarantees
6.4.1 General
30 6.4.2 Discharge closure devices
6.4.3 Turbine
31 6.4.4 Generator
6.4.5 Governor
6.4.6 Speed increaser
6.4.7 Excitation equipment
32 6.4.8 Comments concerning the complete generating set
6.4.9 Main transformer
6.5 General conditions for tender enquiries and comparison of tenders
6.5.1 Instructions to tenderers
6.5.2 General conditions of contract
6.5.3 Technical comparison of tenders
33 7 Inspection, delivery, operation and maintenance
7.1 Approval of the design and inspection of the work
7.1.1 Approval of design documents
7.1.2 Inspection of materials and sub-assemblies
34 7.1.3 Inspection at manufacturer’s works
7.1.4 Delivery
7.1.5 Assembly at site
7.1.5.1 Initial conditions
7.1.5.2 Follow-up of site erection
35 7.1.5.3 Setting up and checking of the site
7.1.5.4 Erection schedule
7.2 Commissioning
7.2.1 Preliminary checks before watering-up
36 7.2.2 Watering-up
7.2.3 Unit rotation
7.2.3.1 Low speed run
7.2.3.2 Rated speed
7.2.3.3 Overspeed
7.2.4 Preliminary checks and electrical load tests
37 7.3 Operation
7.3.1 Probationary period
7.3.2 Guarantee period
7.3.2.1 Checking of technical guarantees – Acceptance tests
39 7.3.2.2 Check on operational parameters
7.3.3 Normal operation
7.4 Training of personnel
40 7.5 Checking and maintenance
55 Bibliography

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