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Identification of causes of generator set explosion

Identification of causes of generator set explosion-Accident Appraisal-

Cause of explosion of generator setAppraisal Background

If the operator fails to follow the operating procedures when operating the generator set, or fails to detect problems in time and deal with them, the generator set will explode. For example, fuel or lubricating oil is not added in accordance with regulations, or the operator fails to detect equipment failures in time due to negligence or other reasons.
If the generator set is not properly maintained, such as incomplete cleaning and untimely maintenance, it will also affect the operating quality of the generator set and lead to an explosion. In addition, the level and skills of maintenance personnel will also affect the quality of maintenance. If the repair is not up to standard, it may cause greater damage to the equipment.
In the case of identification of the cause of the explosion of the generator set, Zhongke Testing can provide identification services of the cause of the explosion of the generator set.

Cause of explosion of generator setIdentification analysis

1. Circuit short circuit
Some aspects of the generator, such as copper wires, insulating materials, contactors, etc., may cause circuit short circuits. If a circuit is shorted for a particularly long time, it can cause a surge in current, which can cause sparks and ultimately an explosion.
2. Water hydrogen explosion
The heat generated by the generator during operation will decompose water into hydrogen and oxygen. If hydrogen accumulates inside the machine, a water hydrogen explosion may occur. Therefore, when using the generator, be sure to pay attention to whether there is water or moisture near it.
3. Machine aging
If the various parts of the generator are aged and damaged after running for a long time, it may cause it to explode. In this case, regular inspection and maintenance of machine components are required to ensure that the machine can operate normally.
4. Excessive load
If the generator power supply load is too large, it will cause the motor voltage to rise and the current to be too large, causing danger. Therefore, we need to reasonably select the power supply load based on the rated power of the generator.

Cause of explosion of generator setAccreditation criteria

GB/T 23479-2023 Wind turbine set Doubly-fed asynchronous generator
GB/T 42592-2023 Wind turbine set Ultrasonic detection method of wind turbine blade
GB/T 20320-2023 Wind energy power generation system Measurement and evaluation method of electrical characteristics of wind turbine set
GB/T 2820-2009 Reciprocating internal combustion engine driven alternator set
GB/T 13032-2010 Marine diesel generator set
GB/T 19072-2022 Wind turbine set Tower
GB/T 17646-2017 Small wind turbine set
GB/T 34524-2017 Wind turbine main shaft
GB/T 41512-2022 Distributed wind turbine
GB/T 37257-2018 Wind turbine mechanical load measurement
0GB/T 35204-2017 Wind turbine safety manual
1GB/T 33629-2017 Wind turbine generator set Lightning protected micro-hydraulic generator set
2GB/T 29487-2013 Medium and high power gas generator set
3GB/T 29488-2013 Medium and high power biogas generator set
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Cause of explosion of generator setAuthentication case

A natural gas generating unit of a steel company exploded. Although rescued in time, it still caused serious losses. Fortunately, there were no casualties.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems that caused the explosion" of the generator set involved in the case.
identification and analysis results: The
identification and analysis expert team analyzed various parts of the generating unit involved, but the identification results showed that the indicators of each item were normal.
However, when inspecting the running iron core, it was found that there were signs of severe wear, which was caused by long-term mutual wear of the rotating machinery.
In addition, the ventilation and heat dissipation conditions in the storage location of the generator set are poor, resulting in excessive local temperatures during use, causing machine parts to overheat and explode.
In summary, the engine core of the generator set involved was severely worn, and the storage conditions were poor, resulting in local temperatures being too high during use, causing an explosion.

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