HOHANK INTERNATIONAL GEN LATAM

Mine Power Pit Avoidance Manual / Question 12

There is no running record and remote monitoring. Why do the same problems occur repeatedly?

The site is dealing with tripping, high temperatures, and shutdowns every time. However, without operating hours, loads, alarms, failure time points, and switching records, it is difficult for engineers to determine the real cause. Every time I just resume operation, the problem comes back again and again.

Applicable stage

Suitable for long-term spontaneous power generation mining areas, frequent fault sites, remote service support and post-production operation and maintenance management

1. On-site performance

What problems will the mining area see?

  • It is often said at the site that the circuit breaker tripped again, the temperature increased again, and the machine shut down again, but no one can tell clearly what load, at what time and after what operation it happened.
  • After each failure, the system is reset, restarted, and continues production. A few days later, the same alarm or trip occurs again.
  • External engineers can only rely on phone calls, photos and on-site descriptions to judge, and cannot see operating hours, load curves, alarm sequences and switching records.
  • When the team is handed over, they only tell whether the unit can still run, and rarely leave records of fuel consumption, load, temperature, alarms and maintenance actions.

2. Risk causes

The reasons behind the power layout

Without records, it is difficult to distinguish whether the problem is caused by generator capacity, load starting, distribution protection, ambient temperature, fuel quality, or maintenance delays. The crew could only be rescued at the scene, but the cause was not left behind.

Operating hours, load, alarms, fault time points, switching actions and maintenance records are clues to determine repeated faults. Without this information, the next downtime will result in a new guess.

Remote monitoring is not intended to be a complex platform, but to allow mining sites and external engineers to see the same set of facts. Without basic data, remote support can only rely on empirical judgment, and response speed and accuracy will be affected.

3. Scope of influence

Production suspension, fuel consumption, maintenance, safety and environmental protection will all be magnified

  • The same fault occurs repeatedly, and maintenance personnel have to troubleshoot it from the beginning every time. Downtime and communication costs continue to increase.
  • The real reason is concealed, and it may be that the wrong parts have been replaced, the wrong protection has been adjusted, or the generator capacity has been misjudged to be insufficient.
  • Without fuel consumption and load records, it is difficult to detect low-load operation, abnormal fuel consumption, overloading and maintenance delays in the mining area.
  • Management cannot see the shutdown mode and can only wait for on-site repairs. It cannot arrange spare parts, maintenance and load adjustment in advance.

4. How to avoid before construction

What do mine owners need to confirm in advance?

  • Record operating hours, load, voltage, frequency, fuel consumption, temperature, alarms, downtime and recovery actions from the start of production.
  • Leave a simple record of each trip, high temperature, startup failure and manual switching, focusing on the time, load, on-site operation and recovery method.
  • If the mining area has long-term self-generated power or is located in a remote location, priority should be given to configuring basic remote monitoring so that engineers can see key operating data and alarm information.
  • Regularly review records and classify repeated faults into load, power distribution, environment, maintenance, fuel or operation problems to avoid temporary recovery each time.

5. On-site confirmation information

The closer the information is to the scene, the faster the plan will be implemented

  • Existing unit controller model, whether it supports communication, and whether it has remote monitoring or local recording functions.
  • Time records or team handover records of past tripping, high temperature, shutdown, manual switching and maintenance processing.
  • Daily operating hours, main load changes, fuel consumption records, maintenance records and alarm photos.
  • On-site network conditions, on-duty methods, whether multiple units need to be viewed uniformly, and external service support methods.

Engineer contact

Leave your contact information and let engineers help determine power supply risks

Please leave your contact information and provide the location of the mining area, main equipment, existing power supply methods, tripping or shutdown performance. If the issue involves expansion, drainage, tailings, or long-term self-generation, please also indicate the planned commissioning time, daily operating hours, ATS/parallel requirements, and spare parts maintenance conditions.

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