Maintenance and repair of relay protection and automation equipment

Electric machines and devices, cable and overhead power lines and other parts of electrical installations and electrical networks are constantly flowing with current and are under voltage. In the course of operation, normal modes of operation may occur and damage may occur, leading in most cases to short circuits (SC).
SCs are the most dangerous types of damage, arising from breakdown or interruption of insulation of electrical equipment and power lines, wire breaks, erroneous actions of personnel (inclusion under voltage of grounded equipment, disconnection of disconnectors under load) and other reasons.
Accidents can be prevented by quickly disconnecting the damaged section of the electrical installation or network using special automatic devices called relay protection devices, which act to disconnect the switches.
The competence "Maintenance and repair of relay protection and automation equipment" is aimed at creating a professional growth environment in which participants demonstrate and improve their skills in working with complex relay protection equipment both on an electromechanical and microprocessor basis, state-of-the-art verification equipment, skills in analyzing waveforms, analyzing design diagrams, and checking the correctness of installation secondary switching.

Content of the competence

Team work

Competence Team

Work in the competence "Maintenance and repair of relay protection and automation equipment" is individual.
The competition task is performed by the participant, and no outside assistance or discussion of the task is allowed during the work.

Team composition

1 Participant +1 Expert

Expert team
  1. Expert Advisor
List of participants
  1. Participant

Completing and evaluating a task

The results are evaluated by experts on the day the module is completed. The maximum number of jobs is 14. In case of a larger number of participants, they are divided into groups to perform a specific module.

16 hours
=
  • 3 days for 6 hours

Evaluation The contest task is performed by the participant, outside help and discussion of the task during the work are not allowed.

Competitive task

The composition of the competition task

  • Maintenance and adjustment of the EKR 217 0502 microprocessor terminal
  • Verification of current transformers
  • Analysis of oscillograms
  • Construction of logical RZA schemes from the RZA scheme with electromechanical relays
  • Adjusting the electromechanical relays
  • Troubleshooting by the scheme

Материалы для скачивания

Technical documentation
Competitive task for 2024

Evaluation

Checking the level

Each specialist is tested on the following skills

Professional skills
  • Compliance with safety regulations (Use of PPE, safe performance of work, compliance with the requirements of occupational safety regulations and instructions
  • Inspection of protection systems, automation and alarm systems, maintenance, repair, elimination of defects made on the basis of electromechanical, microprocessor, and microelectronic devices
  • Ability to communicate with technical documentation and diagrams.
  • Checking the interaction of elements of remote control devices, including with other remote control devices and switching devices

Evaluating skills

Skills are evaluated through the quality and effectiveness of work actions.

Labor action groups
  • Criterion A
    Checking current transformers
  • Criterion B
    Maintenance and adjustment of the EKRA terminal 217 0502
  • Criterion C
    Adjustment of electromechanical relays
  • Criterion D
    Performing waveform analysis
  • Criterion E
    Troubleshooting the scheme
  • Criterion F
    Building logical of remote control devices schemes from an remote control devices scheme with electromechanical relays

The scheme of evaluation of the competitive task

Layer 1
Layer 1
Layer 1
Layer 1
Layer 1
Layer 1
100% Layer 1
  • 26 Maintenance and adjustment of the microprocessor terminal ЭКРА 217 0502
  • 21 Adjusting electromechanical relays
  • 18 Checking current transformers
  • 15 Finding faults according to the scheme
  • 15 Analyzing oscillograms
  • 5 Building logical remote control devices schemes from an remote control devices scheme with electromechanical relays

Ad platform rules

  1. Work on the site – both Participants and Experts, is carried out strictly according to the work plan on the site
  2. Working hours are tracked by a timer that is visible from everywhere.
  3. There should be no foreign objects on the participant's desk: flash drives, notebooks, headphones, smart watches, cases, bags, etc.
  4. The following items are allowed on the participant's table: a fountain pen, pencil, paper, medicines, and eating at lunchtime.

Rules of communication on the site

Telegram-the main channel

Interaction is conducted in chats:


  • Telegram-the main channel
    Participants, expert mentors, Chief Expert, Deputy. The main expert, experts on the development of the Competitive task, Technical experts, representatives of manufacturers of equipment intended for the performance of the competitive task.

Rules of communication in Telegram
  • Member's profile:
    Photo, surname, first name (in Russian)
  • Communication with respect to colleagues

Site operation plan

  • The Competence work plan is published, indicating the time and location
  • The Chart contains all the important information for Experts and Participants
  • We start and finish on time

Participant's workplace

  • The list of equipment and tools that the participant must take with them is regulated by the "Participant's Tool Box", information about which is provided in the Technical Description of the competence, in the section" Materials, equipment and tools in the tool box".

Ваш эксперт

Zimin Alexander
Chief Expert

89003005583
Alatyrsasha88@mail.ru