1 |
Inspecting equipment |
The equipment is inspected by the operator |
Checks whether the equipment operates correctly. |
NA |
NA |
2 |
Inspection OK? |
Check for any problems |
Finding some failure or defect |
NA |
NA |
3 |
Verify alarms |
Check the cause of the alarm being triggered |
Identifying where the alarm came from |
NA |
NA |
4 |
Communication with the operation chief |
The identified problem is reported to the shift leader for possible actions |
The operator reports the abnormality in person |
NA |
NA |
5 |
Emergency? |
Identify if the situation fits into an emergency situation |
Identify who states the severity of the event |
Improve the definition of decision parameters |
Creation of new definitions and training for employees |
6 |
Negociate with dispatch load center |
The stop of the GU is negotiated in real time |
Check if electrical conditions permit the shutdown of the GU at the moment |
NA |
NA |
7 |
Urgent? |
Identify if the situation fits into an urgency |
Identify who decides about the severity of the event |
Improve the definition of decision parameters |
Creation of new definitions and training for employees |
8 |
Issuance of the documentation for the shutdown (service solicitacion) |
Issue a document describing the problem to the maintenance crew |
The operator fills in the form where the type of problem is reported and where it is located |
NA |
NA |
9 |
Issuance of the documentation for the shutdown (work permits) |
The maintenance crew issues a work permit, analysed by the operation crew, so that the responsible team can perform the intervention. |
Maintenance issues the work permit |
NA |
NA |
10 |
Register maintenance in the electrical system |
The dispatch is responsible for conducting the negotiations with the ONS, in the event that a stop should be formalized, through the document IMS (Intervention Management System) |
Dispatch formalizes the shutdown request |
NA |
NA |
11 |
Disconnect in the shortest possible time? |
Identify if it is necessary to shutdown the GU in the shortest possible time |
Identify who decides about the severity of the event |
Improve the definition of decision parameters |
Creation of new definitions and training for employees |
12 |
Negociate with the electrical system |
Negotiations with the electrical systems about the feasible time to perform the maintenance |
The operation of the system negotiates with ONS the best date and time for the unit to be stopped. |
NA |
NA |
13 |
Program shutdown of the GU |
Scheduled to be carried out in the shortest possible time, checking the most appropriate time. |
Checking the best date with the severity of the problem |
NA |
NA |
14 |
Register maintenance in the electrical system |
The dispatch is responsible for conducting the negotiations with the ONS, in the event that a stop should be formalized, through the document IMS (Intervention Management System) |
Dispatch formalizes the shutdown request |
NA |
NA |
15 |
The electrical system approved? |
The ONS approves or disapproves the request for disconnection via e-mail, if approved the Shutdown Request issued and if refused, the shutdown is rescheduled. |
ONS sends e-mail to the operation crew, approving or disapproving the intervention |
The planning is lost when the ONS doesn’t approve |
Create new parameters for these cases |
16 |
Reschedule |
A new schedule is made to the shutdown |
Verifying the best date and time for the intervention |
Delivery of the request in a short time |
Review the deadlines for submitting the requests |
17 |
Issuance of the documentation for the shutdown (service solicitacion) |
Issue a document describing the problem to the maintenance crew |
The operator fills in the form where the type of problem is reported and where it is located |
NA |
NA |
18 |
Plan the maintenance |
According to the anual maintenance plan of GUs. |
Annual plan approved |
NA |
NA |
19 |
Issuance of the documentation for the shutdown (work permits) |
The maintenance crew issues a work permit, analysed by the operation crew, so that the responsible team can perform the intervention. |
Maintenance issues the work permit |
NA |
NA |
20 |
Issuance of the documentation for the shutdown (shutdown request) |
With the approval of ONS to perform the shutdown of the UG, the operation of the plant issues the request for shutdown. |
The operation issues the request for shutdown |
NA |
NA |
21 |
Shutdown of the GU |
The real-time operation team shutdowns the GU and isolates to the maintenance crew. |
Shutdown and isolate the GU |
NA |
NA |
22 |
Perform the maintenance |
The maintenance team performs the necessary repairs on the GU. |
Do the necessary repairs |
NA |
Create an environment to include all pendencies in the stop |
23 |
Return the GU to normal operation |
The operation team returns the GU to the electrical system. |
By operational maneuvers |
NA |
NA |