IEC 61116 : 1.0

ELECTROMECHANICAL EQUIPMENT GUIDE FOR A SMALL HYDROELECTRIC INSTALLATIONS

International Electrotechnical Committee

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FOREWORD
SECTION 1 - GENERAL
Clause
1.1 Scope and object
1.2 Normative references
1.3 Nomenclature
1.4 Methodology
SECTION 2 - DESCRIPTION OF INSTALLATION AND OPERATING
            CONDITIONS OF POWER STATION
2.1 Site conditions
2.2 Hydraulic conditions for plant and design criteria
     for the units
2.3 Electrical conditions for plant operation
     2.3.1 The plant is intended to operate in isolated
            network
     2.3.2 The plant is intended to operate in parallel
            with a grid which imposes the frequency
     2.3.3 Energy transport and distribution
2.4 Types of regulation and modes of operation
     2.4.1 Frequency regulation
     2.4.2 Level control
     2.4.3 Flow regulation
     2.4.4 Simplified governing
2.5 Automation, telemetry, remote control, alarms
SECTION 3 - EQUIPMENT SPECIFICATIONS
3.1 Technical requirements
3.2 Limits of the supply
     3.2.1 For the hydraulic system
     3.2.2 For the electric system
     3.2.3 Elements not normally included in the supply
3.3 Specifications of the elements of the plant
     3.3.1 Trashrack and rack cleaner
     3.3.2 Water-level control
     3.3.3 Discharge closure devices (see figure 7)
     3.3.4 Penstock
     3.3.5 Turbine (see figure 8)
     3.3.6 Generator
     3.3.7 Automatic control system
     3.3.8 Main transformers (reference can be made to
            IEC 76)
     3.3.9 Auxiliary equipment
     3.3.10 Spare parts and special tools
     3.3.11 Mechanical handling
     3.3.12 Corrosion protection
3.4 Guarantees
     3.4.1 General
     3.4.2 Discharge closure devices
     3.4.3 Turbine
     3.4.4 Generator
     3.4.5 Governor
     3.4.6 Speed increaser
     3.4.7 Comments concerning the complete generating
            set
     3.4.8 Main transformer
3.5 General conditions for tender enquiries and
     comparison of tenders
     3.5.1 Instructions to tenderers
     3.5.2 General conditions of contract
     3.5.3 Technical comparison of tenders
SECTION 4 - INSPECTION, DELIVERY, OPERATION AND MAINTENANCE
4.1 Approval of the design and inspection of the work
     4.1.1 Approval of design documents
     4.1.2 Inspection of materials and sub-assemblies
     4.1.3 Inspection at manufacturer's works
     4.1.4 Delivery
     4.1.5 Assembly at site
4.2 Commissioning
     4.2.1 Preliminary checks before watering-up
     4.2.2 Watering-up
     4.2.3 Unit rotation
     4.2.4 Preliminary checks and electrical load tests
4.3 Operation
     4.3.1 Probationary period
     4.3.2 Guarantee period
     4.3.3 Normal operation
4.4 Training of personnel
4.5 Checking and maintenance
Annex A (informative) - Definitions and nomenclature
Tables
Figures

Abstract

Provides the future purchaser with information allowing him to prepare the required documents, from the call for tenders up to acceptance tests and operation of electromechanical equipment. Applies to installations having outputs of less than 5 MW and turbines with diameters less than 3 m.