Views: 0 Author: Site Editor Publish Time: 2023-03-06 Origin: Site
Depending on the intended application, an open frame power supply may include a frame without a cover, a simple backplane, or even just a separate PCB. The power range is very broad and the design can be customized specifically for a particular market, such as medical or industrial.
What are the main components of an open frame power supply?
What do we need to pay attention to when using open frame?
What is the maintenance method of open frame?
The main components of an open frame power supply are the power cord or terminal assembly, circuit protection devices, EMI filters, wiring, power switches, transformers, rectifiers, output terminals, capacitors and several other possible components. Protection from electric shock is the main goal, and open power supplies have traditionally meant being enclosed as part of the terminal equipment. Nevertheless, it is not uncommon to see open power supplies used as bench test power on hobbyist workbenches. It is best to keep any open power supply in a protective enclosure to prevent accidental electrocution or contact with spilled liquids. Open power supplies should not be used without an enclosure to protect us from accidental physical contact.
Be careful not to exceed the maximum load of the open frame, which is typically 10 amps. The maximum load on the device or open frame data label.
open frame should not be used with appliances that consume a lot of power such as heaters, dehumidifiers, electric kettles, washing machines and stoves. These appliances should be plugged directly into a wall outlet.
Do not use the open frame in wet or humid areas if it is marked "for indoor use only".
Always make sure that the open frame is out of reach of young children.
Tingling sensations and odors are signs of a problem. Turn off the wall power immediately.
Do not plug multiple devices into the open frame's sockets; this may cause overloads or lead to loose connections.
Poor electrical contacts and overloads in open frame are a major cause of electrical fires, especially if the appliances are connected individually or in combination to draw high current loads
⑴ Clean up the dust on the open frame.
(2) Sampling the capacity of the electrolytic capacitors in the open frame. If the capacity of the electrolytic capacitors is found to be lower than 20% of the nominal capacity, they should be replaced. Generally, the lifespan of the electrolytic capacitors should be replaced for about ten years to ensure the work of the circuit board. performance.
(3) For high-power devices coated with heat-dissipating silicone grease, check whether the heat-dissipating silicone grease is dry and solid. The high-power devices are burnt out due to poor heat dissipation.
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