Line Interactive UPS offline and online are what matter?
UPS uninterrupted power supply device that uses solid-state components (SOLID - STATE) input power source and the load is connected between the input power from Brvzakhtlafat including complete cessation of smart home helps:
In general, UPS smart home design structure in one of three modes, Line interactive, Off-line On-line fall.
the inverter circuit. All the Hs have a system that comes with a Bypass switch Output Load connection with direct feeding of power to provide. In many cases the output switch circuit is completed with the use of static switches . Of course Drew UPS Smart House power down the G4 done by smart relay.
UPS Offline (Off - Line)
Off-line model in the ups sensitive loads from the By pass energy and if power is interrupted or voltage By pass road outside the range of acceptable adhered to, the inverter is replaced. During normal operation the device Hrakhtlaly Bypass voltage is within the acceptable load to be transferred. Although many models ups Bypass route somewhat from the sharp rise in voltage (spike) prevent and Kvnvansyvn of RF (Radio Frequency) on the way there Bypass.
In normal circumstances battery charger constantly works to keep the batteries fully prepared. In some intelligent home UPS inverter is off to the overall efficiency of the device may increase, although parts of the electronic control for fast performance inverter is always active.
If the voltage Bypass the minimum allowable lower, the inverter will immediately start to work and time by switching static (or relay outputs G4) to the inverter to be transmitted according to the stages of transition after the termination voltage Bypass begins to break inevitable The load on the power supply, although this short break as much as 10 ~ 2 ms
It should be noted that Aksrbarha appropriately and without suffering adverse effects are common this time leaving behind the power off once again transferred to the Bypass.
UPS Line - Interactive
This type d, \ d hs smart homes including devices that have tried adding voltage regulation system on track By pass better than the series Off-line offer. Two of the most popular in this category UPS systems with transformer Buck / Boost Vtrans the Bashd.mshabh models ferrorvesonat Off-Line UPS Line-Interactive Model your load is fed through the Bypass Vbrasr any event that causes power outage city transfers it to the inverter. In parts of the battery, charger and inverter circuit Off-Line system is similar but also because of the addition of the voltage regulator circuit in the inverter By pass times less likely to spread. Such a system would have a greater impact on energy storage and battery life in comparison to the Off-Line more.
A variety of line-ups Inter Active (Line - Interactive)
Buck / Boost Bypass route will be added to regulate the voltage at the secondary winding of the transformer with a head set with several relays that both low and high voltage Bypass path to the right covered and that the output voltage of home smart enough to limit the voltage required. This means that the acceptable voltage range input (without inverter performance) will Yabd.yk ups in this classification can input voltage range between + 20% to - 30% more than the rated voltage range and uses of the Bypass, your load voltage supply.
2. Trans Frvrznans similar performance transformer Buck / Boost is, in this case replacing trans trans Frvrznans Buck / Boost is. The trans-regulation and voltage regulation against perturbations such as electrical line noise, and for changes in input voltage from - 40% to + 20%, only 3% of the rated output will change. The transformer with energy storage, computing power required at the time of uninterrupted power supply to the inverter for a short time to start. So it without interrupting the power flow, load transfer between the inverter Bypass route, and actually becomes a true On-Line that the output gap is not observed.
3. Bi- directional power converter is only one block replacement rectifiers (AC) and the inverter circuit, very fast switching and acts as an inverter circuit. Also, this type of circuit design can be found in Buck / Boost or in any of the various systems Line-interactive use.
UPS Online (On-Line)
The first difference between this plan and what has already been described in the system is off-line smart home energy battery with the "rectifier / charger" replaced Ast.bkhsh "rectifier / charger" may be two separate or a complete power block consists Bashd.zmanykh power in the energy sector charge the battery and inverter with a fixed dc voltage supply. In the event that the input power (mains) is cut off and the charging DC power inverter by batteries and gradually empty the battery time. This type of UPS called also called Double Conversion UPS provides the highest level of protection because it has always fed with a regulated voltage In other words, even when there is a power rectifier charger and inverter sections are active in normal mode when your energy bar is well protected against power disturbances. Because rectifiers, inverters, such as a barrier against noise in the power line voltage fluctuations and transient operation and finally a well-established supply output voltage. If the input voltage limit (such as 10% to 20% -) exceed or be fullyprovide and charge through the static switch is connected to the inverter output.
How to choose the UPS suitable for smart home?
The main parameters to purchase a
1. THD (Total Harmonic Distortion): loads the use of switching power supplies, due to heat them Ayjadharmvnyk network neutral wire and the national electricity system as it causes heat. Where the number of switching power supplies are so much better than low input current THD ups used to say 10%. However, this should not be forgotten that where there is also a generator of UPS with Low THD is essential.
2. Time switch: The time switch from battery power settled and vice versa, the more time Bashdahtmal reset the computer at the time of the switch more. ( Just
3. On line / UPS switch time zero) support time: Time needed to support the power outage in the city, this time depends on the amp hour battery and the amp-hour battery, the amount is less just-ups should Drkmtryn battery charging possible (approximately between 4 to 8 hours). In some UPS charging current is limited.
4. Noise Audio: when the machine is turned on, the sound of a fan or trans device creates noise, use of UPS with minimal noise in offices and hospitals and places that require low noise are essential.
5. Size and weight: Size and volume of the device may vary according to location.
6. Ruggedness and reliability: stability and reliability in the most difficult and critical weather conditions (overloads moment) pick-ups are the most important parameters.
7. Technology and output waveform: If the power supply devices used are extremely sensitive and any noise or Avjayy should enter and complete sinusoidal output waveform for uninterrupted and without depending on the input voltage is required, we recommend UPS is online and noise Chnanjh enter or change the output waveform of the system is less important, Line Interactive UPS is recommended.
However, the technology must also be taken to fluctuations in the AC power (Vltaz·hay loss intense, constant interruptions, etc ..)
Rated power: There are two ways to calculate the rated power for UPS
The first method: the power consumption of individual devices in watts calculated and added together and divided by a factor of output power ups Power-ups can be achieved in terms of volt-amperes.
The second way of measuring the current consumption of all devices in the 220 multiplied by posing Yim power-ups can be achieved in terms of volt-amperes.
Changes in input voltage and frequency range: changes in input voltage and frequency range means that the input voltage and frequency (eg
160 ~ 280 vae voltage and frequency from 45 ~ 65) If the input (power) change-ups without using the battery and the internal Kvnvansyvn continue to work to provide suitable output voltage. If the UPS Askharj of this range, the UPS Backup mode and the input is disconnected and the battery to return to normal Brgrdd.rnj output voltage and output frequency and regulation (voltage range and output frequency UPS S) it should range input voltage consumer devices connected to the UPS match, the ups and the online regulation voltage less than 2% and a frequency of less than 0. 5% in the UPS of off_line and line_Interactive regulation voltage 10% to 3% Vfrkans between 5/2 to 5% / 0%.
How the power of the (Back Up) will be calculated for the battery?
Back up time is the amount of time needed to charge the battery should provide power and often it since independence (Autonomy) or discharge time can also be called.
Various types of batteries are available in different Ah, so in order to install the battery and use it to calculate the precise done.
Choice of battery or good service at least two points should be noted.
1. Load the battery
2. Since independence or Back up required
First, we calculate the current drawn from the battery. as an example :
If the load connected to the UPS 5KVA and power factor of 0. 8 is a once-ups 4kw. If the efficiency is 90% inverter UPS inverter losses 36 / kw0 is. The battery should be enough time for power Kw 4.36 = 0.36 KW + 4KW be ((dc produce.
If battery voltage is 192 volts and time Back up, 30 minutes. First, we calculate the dc current flow 22. 71 will be.
Note: The above calculations are simple come in here because the actual battery voltage drops Dsharzhshdn it.
Battery manufacturers always provide tables or graphs using the information they need to determine the capacity of the service.
In this case, according to information provided by the manufacturers of batteries, 16 battery (192 V) with a capacity of 24 amp-hours service can feed the load for 30 minutes.