UPS work, bypass output humane allow

UPS work, bypass output humane allow UPS to avoid the user to work in BYPASS MODE not boot, causing electricity interruption, online offline ups and equipment are abnormal shutdown. ups mains input is normal, the default output without bypass. Must be turned on, will have a normal inverter output.
Input power factor correction
UPS with input power factor correction, under full load, the input power factor can reach above 0.99, so that the user's network environment is not contaminated.
· DC start
Under mains failure mode, if necessary use the UPS to start the computer or other loading equipment, UPS can boot directly to the battery current, making UPS more convenient and reliable.
· Bypass Protection
Bypass feature allows the UPS greatly enhance emergency response capabilities, while user load equipment for the power of special requirements, such as the voltage is not too high, UPS bypass supply voltage is too high protection, allowing users to load equipment from high voltage danger.
Automatic start function
When mains abnormal, enter the battery power mode until the end, UPS will shut down when the utility power is restored to normal, the United States and Europe and easy UPS will start automatically boot, normal power supply, one by one without user boot.

UPS works in normal electricity mains via surge absorption filter circuit

UPS works in normal electricity mains via surge absorption filter circuit → AC DC converter circuit to convert alternating current circuit → → DC and AC output converter supply the load and charge the battery at the same time; once microprocessor control circuitry to detect to mains interruption immediately discharge circuit → AC → DC converter converts AC power output from the battery and supply load. If UPS microprocessor control circuit detects a fault, then high frequency online ups will jump to borrow from the relay (RELAY) bypass (BYPASS), mains power supply load, and audible warning the user.
Performance
· Sine wave output
Whether in mains mode or battery mode, can be low-distortion sine wave output power for the user to load equipment for the best power protection.
· Zero transfer time
When power cut or re-power, UPS switch between AC mode and battery mode is no conversion time, effectively ensuring the reliability of the load operation.
Input zero line of fire detection
To avoid UPS mains input zero FireWire reverse the machine with zero FireWire reverse detection.
· Bypass output humanity
To prevent users make UPS work in BYPASS MODE not boot, causing electricity interruption, UPS and equipment are abnormal shutdown. ups mains input is normal, the default output without bypass. Must be turned on, will have a normal inverter output.

UPS efficiency solar inverter

UPS efficiency solar inverter
Solar inverter efficiency refers to as the demand for renewable energy, solar inverters (photovoltaic inverters) market is growing. These inverters require extremely high efficiency and reliability. These inverters used in industrial ups power supply circuits were investigated and recommended the best choice for the switch and rectifier parts. The general structure of the photovoltaic inverter shown in Figure 1, there are three different inverter available. Sunlight on the solar modules are connected in series through, each module contains a set of solar cells in series (Solar Cell) unit. Direct current (DC) voltage generated by the solar module in order of several hundred volts, the values according to the number of lighting conditions module array, and the temperature of the battery modules may be connected in series.
The primary function of this type of inverter is the input DC voltage is converted to a stable value. This function is achieved through the boost converter and the boost switch and boost diode needs. In the first configuration, after the boost stage is an isolated full-bridge converter. The role is to provide full-bridge transformer isolation. The second full-bridge converter output is used from the first full-bridge DC converter stage DC into alternating current (AC). Its output is connected to another network before being filtered through the AC Pure sine wave ups grid additional double contact relay switch

 

UPS has the following characteristics:

UPS has the following characteristics:
(1) Due to on-line UPS, whether in the mains is normal, or power outages in the city by the machine during the inverter to the battery-powered, it loads are powered by the UPS inverter. Because of this, virtually eliminating the effect of any voltage fluctuations and interference from the mains to the load of work, truly non-intrusive regulator power to the load. This is obviously not any kind of interference AC power supply can be solved. When the voltage range of 180 ~ 250V city, its output voltage range up to 220V ± 3%, stable operating frequency range of the sine wave at 50Hz ± 1%.
(2) the waveform distortion coefficient line UPS output sine wave of the minimum, generally less than 3%.
(3) mains interruption can realize on-line three phase online ups uninterruptible power supply to the load. As long as the machine battery can provide power to the UPS inverter, whether electricity is interrupted, on-line UPS is powered by the inverter to the load. Therefore, the power supply from the mains to the mains interrupt the process, on-line UPS internal action did not produce any conversion, the conversion time is zero power to the load.
(4) On-line UPS with backup UPS, compared with excellent output voltage transient characteristics. Generally l00% or 100% load load load load shedding, its output voltage range of about 1%, the change of duration is generally from 1 to 3 cycles.
(5) On-line UPS generally used above 20kHz PWM technology, the smaller the noise, about 50dB.
(6) on-line UPS control circuit, using the input transformer, the output transformer and a photocoupler device like "ferroelectric" driving part and "weak" control line portion isolated from the electrical point of view, and thus the reliability of the circuit is greatly improved. This UPS failure rate is generally low.

UPS is in on-line UPS when power supply is normal

UPS is in on-line pure sine wave online ups when power supply is normal, the power input voltage noise filter removes all the way through the grid frequency interference in order to obtain pure AC is rectified and filtered into the rectifier and converts AC power to DC smoothing, then divided into two, all the way into the charger to charge the battery, and the other way supply inverter, and inverter turn DC into AC 220V, 50Hz supply load.
When utility power outage occurs, AC input has been cut off, the rectifier is no longer working, then the battery discharge the energy delivered to the inverter, and then by the inverter converts DC into AC for load. Therefore, the load, despite the utility has ceased to exist, but this time the load is not interrupted due to electricity outage, you can still operate normally.

UPS string inverters

UPS string inverters
String inverters are now on the international market has become the most popular inverter. String inverters are based on each PV string (1kW-5kW) through an inverter, the DC side with a maximum peak pure sine wave online ups tracking based on a modular concept, in parallel with the AC-side and network
. Many large-scale photovoltaic power plants using string inverters. The advantage is the difference between the modules without strings and impact of shading, while reducing the optimal operating point of PV modules
In the case of the inverter mismatch, thereby increasing the generation capacity. Technically these advantages not only reduces system cost, but also increase the reliability of the system. Meanwhile, in the string between the introduction - the concept of "master-slave", so in the system in a single string of energy can not work a single inverter case, several groups of PV strings together, so that one or several working to produce more Solar panel inverter. The latest concept for several inverters with each other to form a "team" instead of "master - slave" concept, making the reliability of the system one step further.

 

and the computer ups power supply factor is not only the current phase

1) and the computer ups power supply factor is not only the current phase b (fundamental) and the voltage between the relevant and related to the current pulse width, even if the current (fundamental) and the voltage phase  difference between the b = 0, i.e., the current (base when the center line coincides with the wave), and the voltage based on the calculated F (a) still is not 1, and the pulse width becomes narrower as the current increases.
2) Due to the forefront of the current pulse is relatively steep, so the harmonic frequency of the current offer relatively high and rich, space launch capability to offer relatively strong.
If the UPS input circuit is a diode rectifier or a thyristor rectifier, the power factor thereof is not caused by a phase difference, but by strong interference caused by a current pulse. These high-order harmonic currents all the way to form a series mode interference Shao fleeing through electrical equipment, another way out in the form of electromagnetic radiation, the formation of RF interference nearby devices, especially so that the radio communication can not be normal.