4G Cell Phone Jammer Previously had roughly describes the current base with modular power system's basic functions and technical levels, we should say its design technology has been very mature to the point where, in general good practices used to maintain its availability to improve and extend the life is becoming increasingly apparent.
a) availability of a rectifier to maintain
Mobile base stations are currently using high-frequency switching power supply modular parallel, the single module output current ranging from 20A to 100A, the cooling methods are self-cooled and forced air-cooled in two ways. I believe that the well-known manufacturers in the design of the rectifier module technical indicators do not worry, the self-protection functions do not have to worry too much, but added some seemingly minor maintenance issues that need attention.
Such systems in the selection of the general base in 150-200A, far greater than the actual load (under normal circumstances, together with a common base station battery float current is 20A or less), then the rectifier module is cold standby mode or all put it? I prefer the latter. Electronic devices working life is very long, but not long-term power is not beneficial thing, is not it so it electrolytic capacitors. Not to mention the load is not high temperature rise is small, but has no effect on the life of the power electronic devices. But also conducive to dehumidification.
Another example is part of the AC input rectifier basically connected with varistor to undertake pre-anti-lightning surge devices (SPD) of the residual voltage, protecting the back-end devices and circuits. But when the AC voltage is chronically high, seemingly not a shock pulse method, but the cause of the leakage current to increase the long-term there will be a heat accumulation in fact, greatly affect their life, so maintenance should be noted that severe discoloration varistor better to advance replaced. Some varistor will bring open flame burst, do not underestimate the harm to safety. 4g cell phone jammer
Another example is the problem of maintaining the ambient temperature. Anyway, we can not believe the manufacturer's instructions are already enshrined rectifier temperature adaptation is generally marked up to 45 degrees or higher, and the temperature inside the module as well as protective measures, and therefore do not pay attention to the computer room air conditioning running guarantee.
In fact, this can be used to ensure that the rectifier is a misunderstanding of the terms of, for example, we all know the relationship between the life of electrolytic capacitors is increased and the temperature is 10 degrees down 50 percent lifetime relationship; varistor by long-term excessive heat buildup not only reduces life expectancy, there may at any time or from the breakdown of fire; higher power devices and components, sensitivity to temperature effects. 4g cell phone jammer
Therefore, we should be concerned about the condition of air-conditioning equipment at the time of inspection maintenance, and to ensure the power outage AC air conditioning should be able to call again from the start in unattended conditions, 10-30 degrees is appropriate to maintain the ambient temperature, and the air conditioning running also brought a room dehumidification effect.
Again dust cover air-cooled rectifier regular cleaning dust problem. Seemingly trivial, such as the consequences of not attach importance to environmental temperature is maintained as previously described in the same.
Again internal adjustment rectifier modules and parallel, and so has been to protect the real reason by a microprocessor and a rack monitoring unit, and therefore recognize straight about using maintenance manual press which prompted setup and operation is very important, otherwise it is sometimes difficult cause the least bit of difference in the effect of the loss of thousands of miles, greatly affect the availability rectifier module.4g cell phone jammer
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