On-Site Support for your Transformer Service Needs.
On-Site Repair and Service
- Responsive Emergency Services
- Control Maintenance and Replacement
- Additional field services: Wiring, Motor Testing, Repair and Replacement, Motor Alignment
Safety Trained Personnel
Safety training: electrical safety, substation safety, confined space entry, lockout/tagout procedures
- Assembly and disassembly
- Bushing removal and replacement
- Radiator removal and replacement
- Leak repairs
- Gasket replacement
- Relocation services
- In-field sandblasting, hydro-blasting and painting
- Commissioning services
- Hot oil processing
- Internal inspections and repairs
- Paper samples
- Coil re-clamping
- Lead repair
- DGA (dissolved gas analysis)
- Dielectric oil tests
- Oil moisture content tests or Karl Fischer
- Power factor
- Turn ratio
- Auxiliary devices (ie fans, pumps)
- Doble testing
- SFRA testing (sweep frequency response analysis
- Insulation resistance
- Winding/conductor resistance
- Oil filled bushing test
- CT test
Using Doble technology and the DTA database, we are able to give immediate analysis of the device under test. Brandon and Clark can analyze and compare your test results against industry results to distinguish emerging trends. Each device name plate and test history is then located in one record, improving the efficiency of testing and evaluation of results. The advantage of power factor testing is that the testing is repetitive and will break down a piece of equipment into sections to determine the exact location of electrical breakdown. The pinpoint accuracy that a Doble test can provide you cannot be achieved by using an insulation resistance test.
What does Doble testing include? :
- Excitation current testing to evaluate the transformer magnetizing circuit
- Power factor testing to confirm insulation integrity and quality
- Capacitance testing to measure physical changes that may have occurred to the apparatus
- Turns ratio testing to detect shorted turns or winding damage
- Capacitor bank testing detects deteriorating or failed capacitors within a bank
- Doble bushing testing (C1/C2, hotcollar) helps to determine individual bushing health
Brandon and Clark has a dedicated testing and field service team of Doble trained engineers and technicians to test and evaluate your equipment in the field or in the shop.
Dissolved Gas Analysis (DGA)
Dissolved Gas Analysis is a vital test performed on the oil in the transformer. Oil analysis can reveal a variety of phenomena such as arcing, partial discharge, moisture contamination and overheating.
The breakdown of electrical insulating materials and related components inside a transformer generates gases within the unit. Identifying these gases being generated can be very useful information in any preventative maintenance program. Once oil samples have been taken and analyzed, the first step in evaluating DGA results is to consider the concentration levels (in ppm) of each key gas. It is recommended that values for each of the gases be trended over time. Any drastic change is a sign of a potential problem and action should be taken to prevent damage to the transformer.
Keeping trending records and performing regular DGA testing will ensure the health of your transformer and prevent any unscheduled downtime.
Hot Oil Processing
Gas contamination and moisture are two of the most destructive agents in a transformer. Our hot oil/degassing processor can eliminate the gas contaminates as well as reduce the elevated moisture levels within your mineral oil which will extend the life of your transformer.
Brandon and Clark, Inc. specializes in radiator repair.
Some common causes of radiator failure are:
- Corrosive environment
- Radiator being struck by an object (forklift, tool, vehicle, etc.)
- Weld leaks
As a result of these common causes of failure, radiators can experience:
- Bent fins
- Pin poles on the fin
- Weld leaks around the tube
When radiator damage is identified quickly, repair services can be done in the field with minimal interruption to service.
Failure prevention is key to reducing downtime and increasing productivity. Performing regular inspections of your transformer, as a part of your Preventative Maintenance routine, will help to:
- Prevent potential failures
- Avoid/prevent oil spills
- Avoid environmental headaches
Don’t have a regular PM routine? Call Brandon and Clark, Inc. we would be happy to help maintain the health of your equipment!