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Elements and Performance Criteria

1. Prepare to select power factor correction equipment
   • The extent and nature of the electrical installation is determined from job specifications.
   • Safety and other regulatory requirements to which the electrical installation shall comply are identified, obtained and understood.
   • Cable routes, the route lengths of cables and the conditions in which the wiring system is to operate is determined from job specifications or from consultation with appropriate persons.
2. Select power factor correction equipment
   • Wiring systems are selected for suitability for the environments in which they are to operate.
   • Cable conductor sizes are selected to meet current-carrying capacity requirements and voltage-drop and earth fault-loop impedance limitations.
   • Circuit protective devices are selected to meet requirement for co-ordination with conductor current-carrying capacity.
   • Earthing system components are selected to meet requirements of an MEN system.
   • Evidence is obtained that electrical equipment selected complies with safety requirements.
3. Document power factor correction equipment installation details.
   • Evidence is obtained from manufacturers/suppliers that electrical equipment selected complies with safety requirements.
   • Reasons for selections made, including calculations, are documented in accordance with established procedures.
   • Electrical installation arrangement and specifications for all selected items are documented in accordance with established procedures and forwarded to appropriate person(s).

Required Skills

This describes the essential skills and knowledge and their level required for this unit Evidence shall show that knowledge has been acquired of selecting power factor correction equipment for commercialindustrial electrical installations All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSEGA Power factor correction equipment selection Evidence shall show an understanding of power factor correction and equipment selection to an extent indicated by the following aspects T Definitions concept of power factor and reasons for improving power factor T Situations leading to reduction of power factor T Consequences of poor power factor encompassing demand tariff costs noncompliance with NSP and system energy loss T Design considerations encompassing special conditions existing and the suitability for PFC such as existence of distortion due to electronic loads UPS systems power generation facilities or complex electronic loads load profile and the nature of the load in all operating modes and with all possible sources of supply using three phase power recorders power supply quality issues in terms of voltage and frequency stability calculation of corrective VARs circuit protection issues and safety nominal location arrangement types of capacitors to be used use of synchronous motor for large installations possibility of resonance discharge measures types of PFC controls LV PFC HV PFC solid state switched T Compliance with Australian Standards encompassing AS Shunt capacitors for connection to power frequency systems ASNZS Wiring Rules ASNZS low voltage switchgear and Control gear T Testing and commissioning of power factor equipment including controls

Evidence Required

This provides essential advice for assessment of the unit It must be read in conjunction with the performance criteria and the range statement of the unit and the Training Package Assessment Guidelines The Evidence Guide forms an integral part of this unit It must be used in conjunction with all parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package

Overview of Assessment

Longitudinal competency development approaches to assessment such as Profiling require data to be reliably gathered in a form that can be consistently interpreted over time This approach is best utilised in Apprenticeship programs and reduces assessment intervention It is the Industrys preferred model for apprenticeships However where summative or final assessment is used it is to include the application of the competency in the normal work environment or at a minimum the application of the competency in a realistically simulated work environment It is recognised that in some circumstances assessment in part or full can occur outside the workplace However it must be in accordance with industry and regulatory policy Methods chosen for a particular assessment will be influenced by various factors These include the extent of the assessment the most effective locations for the assessment activities to take place access to physical resources additional safety measures that may be required and the critical nature of the competencies being assessed The critical safety nature of working with electricity electrical equipment gas or any other hazardous substancematerial carries risk in deeming a person competent Sources of evidence need to be rich in nature to minimise error in judgment Activities associated with normal every day work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its richness Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package

Critical aspects of evidence required to demonstrate competency in this unit

Before the critical aspects of evidence are considered all prerequisites shall be met Evidence for competence in this unit shall be considered holistically Each element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the Assessment Guidelines UEE Evidence shall also comprise A representative body of work performance demonstrated within the timeframes typically expected of the discipline work function and industrial environment In particular this shall incorporate evidence that shows a candidate is able to Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement Apply sustainable energy principles and practices as specified in the performance criteria and range statement Demonstrate an understanding of the essential knowledge and associated skills as described in this unit It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements Demonstrate an appropriate level of skills enabling employment Conduct work observing the relevant Anti Discrimination legislation regulations polices and workplace procedures Demonstrated consistent performance across a representative range of contexts from the prescribed items below Selecting power factor correction equipment for electrical installations as described as in and including A Determining the extent and nature of the installation from job specifications B Obtaining and understand the safety and other regulatory requirements to which the electrical installation shall comply C Determining power factor correction equipment using graphical or mathematical methods D Selecting wiring system suitable for the environment requirements E Selecting cable conductors sizes in consideration to currentcarrying capacity and voltagedrop earth faultloop limitation F Ensuring coordination between circuit protective device and conductor currentcarrying capacity G Selecting compliant earthing system components H Documenting equipment and systems requirements to be used specification for items selected and reasons for the selections made I Dealing with unplanned events

Context of and specific resources for assessment

This unit should be assessed as it relates to normal work practice using procedures information and resources typical of a workplace This should include OHS policy and work procedures and instructions Suitable work environment facilities equipment and materials to undertake actual work as prescribed by this unit These should be part of the formal learningassessment environment Note Where simulation is considered a suitable strategy for assessment conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy The resources used for assessment should reflect current industry practices in relation to selecting and arranging power factor equipment for electrical installations

Method of assessment

This unit shall be assessed by methods given in Volume Part Assessment Guidelines Note Competent performance with inherent safe working practices is expected in the industry to which this unit applies This requires assessment in a structured environment which is primarily intended for learningassessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit

Concurrent assessment and relationship with other units
	Nil

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Range Statement

10) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance. This unit shall be demonstrated in relation to at least two different power factor installations as listed: Low voltage installation using contactor switching Low voltage installation using solid state switching High voltage installation using contactor switching High voltage installation using solid state switching Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1.

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