In daily life, we are not familiar with the voltage stabilizer. Although we often encounter a voltage stabilizer in our daily life, it is a kind of equipment that stabilizes the voltage. The voltage stabilizer also plays an important role in the daily electricity consumption of our family. Today we will explain what reference basis should be known when purchasing a voltage stabilizer.
Regulator development, design, data parts purchase, manufacturing and processing, life testing, quality control packaging and after-sales service, the cumbersome process has a close relationship with the quality of the voltage stabilizer. The quality of domestic and foreign power supply manufacturers are different, so users when buying a voltage regulator, you should consider multiple layers to achieve the desired effect!
When choosing a voltage regulator, although price is the main factor in purchasing resolution, the interest of the price instructor is short-lived. Regarding the choice of regulator, the benefits of regulator quality are lasting. We are choosing a regulator, the main parameter is still the quality of the regulator. The parameters of the regulator directly determine the quality of the regulator.
When choosing a regulator, we can choose a suitable regulator according to the energy of the regulator. The capacity of the regulator is expressed in volt-ampere (VA) or kVA (KVA) values. In addition to pure resistive loads, loads also include reasonable and capacitive loads. In other words, in addition to the active power in the load, there is also reactive power. This indicator reflects the ability of AC regulated power supply under reasonable and capacitive load.
Ordinary AC stabilized power supply, the load power factor cosφ is 0.8. When the product is 1KVA, the output active power (that is, the capacity of the resistive load) is up to 800W. If the product is represented by 1KW (cosφ is still 0.8), it can output 1KW Active power, the output power S=1000/0.8=1250VA. When the value of the load power factor is small, it indicates that the power supply equipment is more suitable for reactive loads.
The parameters of the AC voltage stabilizer include output power, input frequency, source frequency effect, random bias (time drift), no-load input power and source power factor (this value is different from the load power factor. It is 1), the relative source current Harmonic content, audio noise, etc., three-phase AC stabilized power supply and three-phase output voltage unbalance, etc. For the definition and test methods of these indicators, please refer to relevant specifications.
The regulator has an input voltage compliance range. The IEC standard changes the input voltage to within ±10% of the rated value. The input range of our product is ±15%. The automatic sound and light alarm that exceeds the range cannot stabilize the output voltage within the required range.
What reference basis do we need to know when purchasing a voltage regulator? In addition to the price of it, we must also consider the performance of the regulator and the matching of the performance of the regulator we need. Degree, and whether the output voltage of the regulator is consistent with our required voltage.
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