What technical issues are common during the installation of electromechanical equipment?

2022-10-13 17:29:45

Installation of electromechanical equipmentWhat technical issues are briefly presented during the process?

During the installation and setup process of electromechanical equipment, equipment adjustment, testing, trial operation, and inspection are important steps in handling the installation and setup project. However, some electromechanical equipment is installed in small size and is difficult to use, while others are installed in a messy internal environment, requiring operators to be more cautious. Are you familiar with common skill issues in electromechanical equipment installation? Below is a summary of the skill issues presented in electromechanical equipment installation, summarized by Shenglu Electromechanical. Let's take a look and fully understand it.

1) Bolt connection issues.

The bolt connection isInstallation of electromechanical equipmentHowever, if the operation is improper or the connection is too tight, the prolonged effects of electromagnetic and mechanical forces may cause bolts to become metal fatigue, which can lead to loosening of components such as shearing, thread slippage, and other components, creating potential accident hazards. Especially regarding the connection of conductive current bolts in electrical engineering, it is important to address the mechanical and electrothermal effects between bolts and nuts to ensure tightening and avoid increased contact resistance due to tightening, which could then lead to a series of chain reactions, such as oxidation of the contact surface—increased resistance, resulting in joint overheating, melting, grounding short circuits, and open circuits.

2) Oscillation issues.

The causes of oscillation problems generally include three aspects:

(1) The pump is primarily affected by factors such as large bearing clearance, poor concentricity between rotor and housing, and excessive friction between rotor and stator.

(2) Motor causes include large bearing clearances, rotor imbalance, or uneven air clearance between stators.

(3) During equipment operation, technical parameters violate too many additional parameters, causing simple and unbalanced pump operation stability, unstable flow at the outlet valve, and oscillation. The equipment installation process should be as close as possible to the additional parameters.

3) Overcurrent issues.

There may be three possible causes for this condition: pump bearing damage, foreign substances inside the equipment; Low motor overload current setting, high circuit resistance; The medium used in process operations has high density or high viscosity, exceeding their design capabilities.

4) Electrical equipment issues.

(1) Improper partition switchgear leads to insufficient contact pressure and contact area during movement and stillness, causing contact surface to oxidize by electric heat, increasing resistance, and contact erosion.

(2) Circuit breaker arc contact points refer to explosions caused by improper contactor equipment, stab travel, contact pressure, cycle, or connection speed not meeting requirements, overheating of the contactor, extending during arc calm, differences in insulation media, or sudden pressure increase.

(3) Incorrect installation of pressure conditioning equipment or debris falling into the tissue, if not handled promptly, can also lead to safety accidents of varying degrees.

(4) Insulation damage or failure of the main transformer. During the main transformer core and high-voltage pipe equipment process, if nuts or other debris fall in and improper sealing equipment is installed, changes directly affecting the insulation strength of the main transformer can easily result in partial insulation damage or damage, becoming a serious event.

(5) Due to inadequate equipment protection, the current transformer may have winding open circuits and generated high voltage, endangering personal and equipment safety.