NZQA registered unit standard
17413 version 4
Page 1 of 4
Title
Operate and monitor generator and associated systems in a thermal
electricity generation station
Level
4
Credits
15
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of generator and associated systems and controls;
operate and monitor generator and associated systems; and
identify and respond to deviations in the normal operation of
turbine oil systems.
Classification
Electricity Supply > Electricity Supply - Thermal Operations and
Control
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 17400, Operate cooling water systems in a thermal
electricity generation power station; Unit 17403, Operate
nitrogen and carbon dioxide systems in a thermal electricity
generation power station; and Unit 17412, Operate turbine oil
systems in a thermal electricity generation power station; or
demonstrate equivalent knowledge and skills.
Explanatory notes
1
This unit standard is intended for, but not restricted to, workplace assessment. The
range statements within the unit standard can be applied according to industry
specific equipment, procedures and processes.
2
Safety of personnel and plant must be a priority throughout the assessment. If the
safety requirements are not met the assessment must stop.
3
Performance and work practices in relation to the outcomes and evidence
requirements must comply with all current legislation, especially the Electricity Act
1992, and any regulations and codes of practice recognised under that statute; the
Health and Safety in Employment Act 1992; and the Resource Management Act
1991. Electricity supply industry codes of practice and documented industry
procedures include the current version of the Safety Manual – Electricity Industry
(SM-EI) Wellington: Electricity Engineers’ Association. A full list of current legislation
and industry codes is available from the Electricity Supply Industry Training
Organisation, PO Box 1245, Hamilton 3240.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17413 version 4
Page 2 of 4
4
The phrase in accordance with industry requirements is implicit in all outcomes and
evidence requirements in this unit standard.
5
Industry requirements include all asset owner requirements; manufacturers’
specifications; and enterprise requirements which cover the documented workplace
policies, procedures, specifications, business, and quality management requirements
relevant to the workplace in which assessment is carried out.
6
The term associated systems includes – generator cooling systems, seal oil systems.
The term generator refers to main system generators.
7
This unit standard excludes standby and emergency generators.
8
The term operate is defined as manual operation and testing of thermal electricity
generation plant including plant adjustments, isolations and restorations.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of generator and associated systems and controls.
Evidence requirements
1.1
Generator operation is described.
Range
1.2
The location, operation and components of generator gas cooling systems are
described.
Range
1.3
include all that apply – generator water cooling, water quality,
layout, principles, gas trapping, pumps.
The location, operation and components of seal oil systems are described.
Range
1.5
include all that apply – gas properties, hydrogen supply, gas
cooling, generator purging, hydrogen gas drier.
The location, operation and components of generator water cooling systems are
described.
Range
1.4
construction, theory, principles, generator protection, excitation.
include all that apply – supply, pumps, DC supply, layout, pressure
control, seal construction, gas detraining.
Controls are described.
Range
include all that apply – control and indication, differential pressure
control, temperature control.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.6
17413 version 4
Page 3 of 4
Operating parameters are identified.
Range
include all that apply – dew point, differential pressure, purity,
conductivity, flow, temperature, pressure.
Outcome 2
Operate and monitor generator and associated systems.
Evidence requirements
2.1
Current status of system is identified.
2.2
Operations are carried out.
Range
include all that apply – isolations, restorations, earthing, plant
changeover, routine testing, leak detection, gassing, degassing,
pressure and temperature adjustments, coolant quality control.
2.3
Operating and monitoring actions are logged.
2.4
Operating decisions are determined in accordance with plant status.
Range
2.5
include all that apply – plant availability and service condition,
resource consent and loading limits, impact on operations.
Plant and equipment are monitored.
Outcome 3
Identify and respond to deviations in the normal operation of turbine oil systems.
Evidence requirements
3.1
Deviations from normal operating conditions are identified, logged and acted
upon.
Range
3.2
Plant safety, fire and emergency procedures are followed.
Range
3.3
include all that apply – major leaks, loss of seal oil, purity, loss of
cooling medium, liquid in casing, dew point.
include all that apply – emergency degas, fire protection systems,
spill response, containment clean up and disposal.
Isolations are prepared and checked.
Range
Safety rules associated with work on and near hydrogen cooled
plant.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Planned review date
17413 version 4
Page 4 of 4
31 December 2015
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
29 August 2000
N/A
Revision
2
11 February 2004
N/A
Rollover and
Revision
3
25 June 2007
N/A
Review
4
9 December 2010
N/A
Accreditation and Moderation Action Plan (AMAP) reference
0120
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, or
an inter-institutional body with delegated authority for quality assurance, before they can
report credits from assessment against unit standards or deliver courses of study leading
to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Consent requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Electricity Supply Industry Training Organisation info@esito.org.nz if
you wish to suggest changes to the content of this unit standard.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016