Power relay is an important component in many electrical equipment, used to control the flow of current. However, relay burning or damage often occurs, causing great inconvenience to the normal operation of the equipment. So, what if the power relay burns out? Below, I will analyze and provide solutions in detail.
What situations can cause power relays to burn out
There are generally the following reasons that can cause the success rate relay to burn out:
Current overload operation
When the current of the relay is too high, but the rated current is too high (actually excessive), the internal circuit will overheat and catch fire. If long-term or repeated use causes muscle injury, this problem will only become more severe.
poor contact
Poor relay contacts can cause arc discharge, resulting in unstable current and burnout. Dirty or corroded contacts are common causes of poor contact.
Voltage instability
Excessive voltage fluctuations, especially when high voltage (24V in this case) current passes through, can overload everything and burn out the relay.
environmental factor
Relays may burn out due to environmental factors such as humidity, dust, or high temperatures, which can affect their normal operation. Relays commonly found in automotive systems may be severely affected by high humidity and temperature, leading to a decrease in their performance... Of course, this also increases the probability of their failure.
Relay quality issues
Unqualified relays and relays that have been used for too long may burn out due to internal structural issues that prevent them from withstanding normal current.
Methods for handling burnt power relays
If it is confirmed that the power relay has burned out, please stop using it immediately. Please follow the steps below:
Power off inspection
The first step is to turn off the power, as electric shock may occur and current entering may cause damage. After turning off the power, check the relay status again.
Check the relay body
Visually inspecting the normally open Omron relay developer's viewpoint is that even considering the unlikely scenario of the relay housing itself exploding or all its internal components being severely damaged beyond recognition, you still wish to do so.
Clean the relay contacts
If the contacts are burned due to poor contact and there is dust on one of the contacts, please try to remove the dirt and corrosion on the relay contacts. Use the correct contact cleaner to make the contacts work properly.
Detecting electrical systems
Before use, it is necessary to measure the voltage, load, and current of the electrical system, which should comply with the regulations of the release device to avoid overloading. Any faults in the electrical system should be immediately resolved.
Replace the relay
If the relay cannot be repaired or is severely damaged, please replace it with a new one. Qualified relays must comply with the operating and workload characteristics of the equipment.
conclusion
Power relay burnout is a common electrical fault, which often occurs during use. In daily use, proper handling and prevention measures should be taken. Only through timely solutions and preventive measures can we ensure that the equipment operates as stably as possible! Understanding the causes and treatment methods of power relay burnout can reduce the burnout rate of relays and prolong their lifespan.
If the problem cannot be solved, it is recommended to replace the relay with a new one in a timely manner to ensure quality; If you want to replace the relay, you can contact us or visit our product category, which offers multiple types of relays.
Articles that you may be interested in