Identification of the cause of generator explosion

The internal mechanical components of the generator may malfunction during operation, such as bearing overheating, broken gear teeth, etc. These problems can lead to machine imbalance, vibration, excessive temperature, etc., which may eventually cause the generator to explode. When the
generator operates under a load that exceeds its carrying capacity, it is easy for the machine to explode due to overheating, excessive pressure, etc. In order to avoid overload problems, users need to first understand the carrying capacity of the generator, distribute the load reasonably, and ensure the normal operation of the generator.
In the case of generator explosion cause identification, Zhongke Testing can provide generator explosion cause identification services.

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.

GB/T 41148-2021 General technical requirements for gas fuel generator sets
GB/T 14824-2021 High-voltage alternator circuit breaker
GB/T 21663-2019 Technical requirements for small-capacity hidden pole synchronous generators
GB/T 25385-2019 Wind turbine sets Operation and maintenance requirements
GB/T 37921-2019 High-altitude wind turbines
GB/T 35792-2018 Wind turbines Qualification testing and certification
GB/T 19073-2018 Wind turbines Gearbox design requirements
GB/T 19568-2017 Wind turbine assembly and installation specifications
GB/T 35712-2017 Ship electrical equipment Generators and motors
GB/T 35704-2017 Ship shaft brushless doubly-fed alternator
0GB/T 35207-2017 Electrically excited direct-drive wind turbine set
1GB/T 34521-2017 Controller for small wind turbines
2GB/T 20319-2017 Acceptance specifications for wind turbines
3GB/T 33202-2016 Generator claw pole precision forgings Process preparation principles
4GB/T 28566-2012 Safety conditions and evaluation of generating units connected to the grid
5

An explosion occurred when an employee of a technology company was performing maintenance and emergency start-up tests on a generator. One section of the generator's battery casing blew out the employee's left eye, resulting in a dispute with the company.
was entrusted by the court to conduct identification and analysis on the cause of the explosion of the generator involved in the case.
appraisal analysis results: The
appraisal analysis expert group discussed and conducted a comprehensive quality and technical analysis on the relevant information and on-site investigation of the generator involved, and made the following suggestions and conclusions:
involved The electrolyte of the generator battery in the case was too low, causing the electrodes to be exposed above the liquid surface. Hydrogen gas was produced during charging. If the hydrogen gas could not be effectively discharged, it would accumulate. Under certain concentration conditions, when the generator set was started, the electrodes exposed above the electrolyte liquid surface would discharge and ignite the hydrogen gas, which led to the explosion of the battery involved.