Plant Test and Field Test of Generators Circuit Breaker Maintenance

Nov. 24, 2021

Circuit breaker can be used to adjust the electric energy, if multiple times to run the asynchronous motor, the power distribution line and motor protection, when these serious overload or short circuit and undervoltage fault problems can be cut off the circuit, its role is the same as the fuse switch and the combination of under-heat relay. And there is usually no need to change the fitting after switching off the faulty current. So far, it has been used in many ways.  Generator circuit breaker facilities are fully tested and maintained to further eliminate potential safety hazards and improve the ability to respond to circuit breaker failures.  


Plant test and field test for generator set circuit breaker maintenance  

Circuit breaker facility inspection is a comprehensive system, mainly including factory test and field test.  

 

Plant Test and Field Test of Generators  Circuit Breaker Maintenance


The factory test is to test UL factory test, remote start-up test, automatic conversion system of main and standby pumps, and inspect the pump body and valve in the pump house.  

Field testing is to ensure timely detection and repair when it occurs through comprehensive testing and maintenance.  

Production safety is more important than Mount Tai. Facilities are checked and maintained to ensure that they play a role at critical moments and become a solid backing to ensure safe production.  

 Circuit breaker maintenance and repair When selecting circuit breakers, users must decide whether to purchase ul-tested (Underwriters Laboratories) equipment.To ensure the overall quality, you are advised to purchase circuit breakers that have been UL tested. Please note that unul tested products do not guarantee correct calibration of circuit breakers. All UL certified low pressure molded case circuit breakers are tested in accordance with UL standard 489, which falls into two categories: factory test and field test.  

UL Factory Testing: All UL standard molded case circuit breakers undergo extensive product and calibration tests based on UL standard 489. UL certified circuit breakers include factory seal calibration systems. A complete seal ensures that the circuit breaker is properly calibrated and not tampered with or altered, and that the product will operate accordingly in accordance with UL specifications. The UL warranty and any warranty shall be void if the seal is broken.  

 

Field testing of diesel generator sets: It is normal for the data obtained at the site to differ from the published information. Many users are confused about whether the field data is flawed or the published information is out of sync with their particular model. The difference in the data is that the test conditions in the factory are very different from those in the field. Factory testing is designed to produce consistent results. Temperature, altitude, climate-controlled environments, and the use of test equipment designed for the product under test all affect the results. Some circuit breakers come with their own test instructions. If not, use a reliable circuit breaker service company.  

Maintenance: In most cases, molded case circuit breakers have an excellent reliability record, mainly due to their enclosed units. The enclosure minimizes the risk of contact with dirt, moisture, mold, dust, other containers and tampering. Part of proper maintenance is ensuring that all terminal connections and tripters are tightened to the correct torque values set by the manufacturer. Over time, these connections become loose and need to be tightened again.  Circuit breakers also need to be cleaned regularly. Improperly cleaned conductors, incorrect conductors for terminals, and loose terminals are all conditions that can lead to overheating and weakening of the circuit breaker.  Manually operated circuit breakers .


Dingbo has a wild range of diesel generators:Volvo / Weichai/Shangcai/Ricardo/Perkins and so on,if you need pls call us :008613481024441 or email us :dingbo@dieselgeneratortech.com


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