Unit of competency

Modification History

Release 1. Supersedes and is equivalent to PMAOPS304B Operate and monitor compressor systems and equipment

Application

This unit of competency covers the skills and knowledge required to operate and monitor a complex compressor system. The compressor system will integrate several plant items (single unit operations). Operation of the compressor system includes the operation of ancillary equipment that is integral to the system, such as:

• advanced lubrication and seal systems
• inter-stage coolers/heat exchangers
• scrubbers
• surge control systems
• instrument/control systems, such as programmable logic controllers (PLCs) or other process controllers.

The competency applies to compressor systems, such as:

• single/multi-stage rotary compressors (axial flow, centrifugal, turbine and screw)
• single/multi-stage reciprocating compressors.

This unit of competency applies to operations technicians who are required to demonstrate a significant understanding of the process and the equipment operation in order to identify and rectify operational problems, predict the potential impact of compressor output on the operation of the whole plant and facilitate output changes.

This unit of competency applies to an individual operating independently in a plant with local control or in liaison with the control room operator in a plant with a centralised control panel, such as distributed control system (DCS) type controls.

This unit of competency applies to an individual working alone or as part of a team or group and working in liaison with other shift team members and the control room operator, as appropriate.

This competency does not require the operation of a central control panel.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Pre-requisite Unit

Nil

Competency Field

Operations

Unit Sector

Elements and Performance Criteria

Foundation Skills

This section describes those language, literacy, numeracy and employment skills that are essential to performance.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range of Conditions

Unit Mapping Information

Release 1. Supersedes and is equivalent to PMAOPS304B Operate and monitor compressor systems and equipment

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=9fc2cf53-e570-4e9f-ad6a-b228ffdb6875

Assessment requirements

Modification History

Release 1. Supersedes and is equivalent to PMAOPS304B Operate and monitor compressor systems and equipment

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria, and include the ability to:

• use data and own senses to monitor plant and maximise performance
• perform pre-start checks, start-up/shutdown procedures, and isolations and de-isolations
• identify early warning signs of equipment/processes needing attention or with potential problems and take required action
• isolate the causes of problems and distinguish between causes of problems/alarm/fault indications, including:

• process gas variations
• instrument failure/wrong reading
• electrical failure
• mechanical failure
• operational problem

• resolve non-routine problems
• identify hazards and risks and apply risk control procedures.

Knowledge Evidence

Evidence must be provided that demonstrates knowledge of:

• all items on a schematic of the production unit and functions of each
• principles of operation of plant/equipment
• process specific physics, to the level of being able to interpret the science and extract factors controlling the process and product and production rate and quality (e.g. power and torque envelopes, compression flows and characteristics
• interactions between plant items/processes
• systems’ operating parameters and integrity limits, product specifications and tolerances, including temperature, pressure and flow
• methods of changing flow rate/specifications and the advantages and disadvantages of each
• impact of external factors (e.g. variations in weather)
• emergency shutdown procedures
• function and troubleshooting of major components and their problems and the resolution of these problems
• routine and non-routine problems that may arise, the range of possible causes and processes to develop solutions
• hierarchy of control
• hazards that may arise in the job/work environment, and:

• their possible causes
• potential consequences
• appropriate risk controls.

Assessment Conditions

• The unit should be assessed holistically and the judgement of competence based on a holistic assessment of the evidence.
• Where competency has not already been achieved in

• PMAOPS221 Operate and monitor prime movers OR
• PMAOPS324 Operate a gas turbine

it may be co-delivered and co-assessed.

• The collection of performance evidence:

• should occur over a range of situations which include typical disruptions to normal, smooth operations
• will typically include a supervisor/third-party report focusing on consistent performance and problem recognition and solving. A supervisor/third-party report must be prepared by someone who has a direct, relevant, current relationship with the person being assessed and who is in a position to form a judgement on workplace performance relevant to the unit of competency
• must include the use of industrial style compressor appropriate to this unit
• may use industry-based simulation for part only of the unit particularly where safety, lack of opportunity or significant cost is an issue.

• Assessment should occur in operational workplace situations. Where this is not possible, or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment reflecting realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills.
• Assessment in a simulated environment should use evidence collected from one or more of:

• walk-throughs
• pilot plant operation
• demonstration of skills
• industry-based case studies/scenarios
• ‘what ifs’.

• Knowledge evidence may be collected concurrently with performance evidence (provided a record is kept) or through an independent process, such as workbooks, written assessments or interviews (provided a record is kept).
• Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.
• Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications associated with this unit.
• The regulatory framework will be reflected in workplace policies and procedures and is not required to be independently assessed.
• Foundation skills are integral to competent performance of the unit and should not be assessed separately.
• Assessors must satisfy the assessor competency requirements that are in place at the time of the assessment as set by the VET regulator.
• In addition, the assessor or anyone acting in subject matter expert role in assessment must demonstrate both technical competency and currency. If the assessor cannot demonstrate technical competency and currency they must assess with a subject matter expert who does meet these requirements.
• Technical competence can be demonstrated through one or more of:

• relevant VET or other qualification/Statement of Attainment
• appropriate workplace experience undertaking the type of work being assessed under routine and non-routine conditions
• appropriate workplace experience supervising/evaluating the type of work being assessed under routine and non-routine conditions

• Currency can be demonstrated through one or more of:

• being currently employed undertaking the type of work being assessed
• being employed by the organisation undertaking the type of work being assessed and having maintained currency in accordance with that organisation’s policies and procedures
• having consulted/had contact with an organisation undertaking the type of work being assessed within the last twelve months, the consultation/contact being related to assessment
• conducting on-the-job training/assessments of the type of work being assessed
• being an active member of a relevant professional body and participating in activities relevant to the assessment of this type of work.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=9fc2cf53-e570-4e9f-ad6a-b228ffdb6875