Electrical Testing in Saltillo for Industrial Systems
We perform specialized electrical testing on substations, transformers, medium- and high-voltage systems, and critical industrial infrastructure, helping detect failures before they affect your operation.
Electrical testing for critical infrastructure
In an industrial operation, it isn’t enough for the electrical system to simply “work.” Equipment must operate under safe, reliable, and measurable conditions. Electrical testing reveals the real condition of components, detects deterioration, validates performance, and supports decisions before a major failure.
At Electroservicios Lozano, we support companies, industrial plants, commercial facilities, and maintenance engineers with technical testing focused on safety, operational continuity, and compliance.
Included services:
- Transformer testing
- Electrical insulation testing
- Medium-voltage testing
- High-voltage testing
- Electrical fault diagnosis
- Operational safety verification
Types of electrical testing
| Test Type | Technical Objective | Operational Benefit |
|---|---|---|
| Insulation Testing | Evaluate the condition of electrical insulation. | Reduces the risk of failure or discharge. |
| Transformer Testing | Review the performance and condition of critical equipment. | Helps extend equipment service life. |
| Medium-Voltage Testing | Confirm safe operation of industrial systems. | Improves electrical system reliability. |
| Fault Diagnosis | Identify active or potential electrical problems. | Enables timely corrective decisions. |
Work process
Initial Review
We identify equipment, operating conditions, and critical points in the electrical system.
Technical Testing
We run electrical tests based on the type of equipment, system, and operational need.
Diagnosis
We analyze results to detect risks, deterioration, or potential failures.
Recommendation
We deliver technical findings and suggested actions to protect the operation.
Equipment and systems we service
Substations
Specialized testing for critical medium- and high-voltage electrical infrastructure.
Transformers
Technical assessment to detect deterioration, faults, and operating risk conditions.
Switchgear
Diagnostics of electrical components used in industrial and commercial facilities.
Protection Systems
Review of systems designed to respond to faults or unsafe conditions.
Medium Voltage
Testing to confirm safe performance of industrial electrical systems.
High Voltage
Technical support for electrical infrastructure that demands greater control and precision.
Electrical testing across Saltillo and the Coahuila industrial region
Our crews bring calibrated test equipment to your site, so most electrical testing is done where the equipment is installed, with planned and short outages. We coordinate the schedule with your maintenance team to protect production.
- Coverage
- Saltillo, Ramos Arizpe, and industrial parks across Coahuila. Other regions on request.
- Response
- Scheduled testing is planned with your team. Failures that stop production get 24/7 emergency response.
- Deliverable
- A written report with measured values, findings, and recommendations ranked by risk.
Signs your system needs electrical testing
Do not wait for a shutdown. Schedule electrical testing when you notice any of these warning signs:
- Breakers or fuses that trip without a clear cause
- Hot spots or discoloration on terminals and busbars
- Burning smell, buzzing, or humming from panels or transformers
- Equipment returning to service after a repair or a long shutdown
- New or larger loads added to an existing installation
- An insurance, customer, or safety audit coming up
Electrical testing FAQ
How often should electrical testing be done in an industrial plant?
Most plants schedule electrical testing of critical equipment at least once a year, and more often for substations, transformers, and systems that run near full load. Manufacturer recommendations, operating conditions, and your audit calendar define the right interval; we can help you set up a testing program for your Saltillo facility.
Do you need to shut down the equipment for testing?
Some tests, such as infrared thermography and visual inspection, are done with the equipment energized. Insulation resistance and most diagnostic tests require a planned outage. We plan each window with your team to keep downtime as short as possible.
What do I receive after the electrical testing?
You receive a technical report with the tests performed, measured values, photos when relevant, and recommendations ranked by risk. The report helps your team plan corrective work and supports internal and external audits.
Can you test medium- and high-voltage equipment?
Yes. Our team performs electrical testing on medium- and high-voltage substations, transformers, switchgear, and protection systems, with procedures and safety measures suited to each voltage level.
Is electrical testing required by Mexican standards?
Mexican regulations such as NOM-029-STPS-2011 require workplaces to maintain their electrical installations in safe condition, and testing is how that condition is verified. We work in accordance with the NOM standards that apply to each installation and provide the documentation you need.
What is the difference between electrical testing and maintenance?
Electrical testing measures the real condition of equipment: insulation, connections, protection, and oil. Maintenance is the work that corrects what the tests find, such as cleaning, tightening, adjustments, and part replacement. Together they reduce the risk of unplanned shutdowns.
Which equipment should be tested first?
Start with equipment whose failure would stop production or put people at risk: the main substation, transformers, main switchgear, and the protection that feeds critical lines. We help you prioritize based on age, load, and failure history.
How quickly can you schedule electrical testing in Saltillo?
Timing depends on the scope and the outage window your plant can offer; we confirm dates when we send the quote. If a failure has already stopped your operation, call our 24/7 emergency line and our crew will respond as soon as possible.
Standards and references
These documents guide how electrical equipment is maintained and tested in Mexico and internationally. They are useful references for your maintenance and safety teams.
Electrical installations
Mexico’s official standard for the safe design and use of electrical installations.
View the standardMaintenance safety
Safety conditions for maintenance work on electrical installations in workplaces.
View the standardEquipment maintenance
U.S. standard for electrical maintenance programs, including inspection and testing intervals.
Learn about NFPA 70BTransformer gas analysis
Guide for interpreting gases dissolved in transformer oil to detect internal faults early.
View the guideNeed electrical testing for your operation?
If you need diagnostics, maintenance, or technical validation for industrial electrical systems, our team can help.
Our Services
Contact
Mon–Fri: 8:30 AM–7:00 PM
Saturday: 8:30 AM–2:00 PM
Sunday: Closed