UPS uninterruptible power supply functions and solutions for electricity.
As an important emergency equipment, UPS uninterruptible power supply for
electric power plays an important role in all walks of life. Don’t miss the
special uninterruptible power supply UPS for electricity. It can be divided into
industrial-grade UPS and commercial-grade UPS according to the use environment.
Industrial-grade UPS is suitable for places with harsh environments, while
commercial-grade UPS has higher environmental requirements.
Function of special UPS uninterruptible power supply for electricity
The special UPS uninterruptible power supply for electric power and the
electric DC operating power supply system form a special uninterruptible power
supply for power plants and substations to supply power to microcomputers,
communications, carriers, emergency lighting and other equipment that cannot be
interrupted. Drawing power from the existing DC operating power supply in the
power plant or substation, there is no need to install a separate battery pack
like a conventional UPS, thereby avoiding repeated investment in batteries,
reducing system maintenance, and reducing operating costs.
The special UPS power supply for electric power is a power supply product
specially designed for power plants, substations and power distribution in
response to the development needs of China's electric power. It has double
conversion online and zero conversion functions. Mainly used for power sports,
RTU, power carrier, power monitoring, etc.
When the mains power is normal, the single-phase 220V (or three-phase 380V)
is isolated, rectified and filtered and then supplied to the load through the
inverter; if the AC grid input is abnormal or the power is outage, the DC panel
backed up by the power system passes through the backstop diode. Inverter power
supply, when the DC panel is under-voltage or powered off, the static switch
switches to bypass power supply; when the mains power returns to normal, it
automatically switches to the mains inverter power supply. If the inverter is
overloaded or malfunctions, it will switch to bypass power supply and send a
warning signal at the same time.
Characteristics of power-dedicated uninterruptible UPS power supply
1. The professional UPS customized for the electric power industry adapts
to the harsh power grid environment within the electric power industry, meets
the load requirements of the electric power industry, and allows users to no
longer have to worry about the three-phase unbalance of the load.
2. The 1+1 redundant parallel working mode adds another safety lock to the
power supply system to meet the extreme needs of power industry users for UPS
high reliability indicators.
3. Make full use of the 220V/110V large-capacity battery packs in the power
industry to maximize the backup time of the UPS and save the installation space
and initial investment of the battery pack.
4. Optional bypass isolation transformer can achieve complete isolation
between input and output, and ensure that the output zero-ground voltage is
<1V.
5. Rich dry contact monitoring signals can be incorporated into the power
plant's own DCS monitoring system; if problems occur, they can be reported in
time to facilitate real-time monitoring of the UPS by the on-duty personnel.
It mainly plays two roles in computer systems and network applications:
first, for emergency use to prevent sudden power outages from affecting normal
work and causing damage to computers; second, to eliminate surges, instantaneous
high voltages, and instantaneous high voltages on the mains power supply. It
eliminates power pollution such as low voltage, wire noise, and frequency
offset, improves power quality, and provides high-quality power to computer
systems.
Dedicated power UPS uninterruptible power supply solution
The power dispatch center requires the AC UPS power system to provide power
to the system equipment and some backup lighting equipment in the dispatch
center and information center. Taking into account the characteristics of the
power supply load, power load capacity and reliability, it is necessary to use
UPS parallel redundancy to ensure power supply to various process equipment in
the building.
In order to facilitate future inspection and maintenance, a large bypass is
set up, which can bypass the entire UPS system and use Mains II as the bypass
power supply. The UPS power supply equipment screen is arranged in the UPS power
supply room on the 21st floor of the building. Three-phase four-wire copper
busbars are used to connect the power supply panels within and between panels,
minimizing unnecessary switches. The screen cabinet and in-screen equipment have
reliable performance and high stability.
The UPS power supply uses a shared battery pack, that is, when one UPS
power supply fails or is inspected, its battery can be switched to another UPS
power supply to extend the discharge time. In order to avoid damage to the
battery life, it is recommended When a UPS power supply is undergoing
maintenance and two sets of batteries need to be shared, try to switch the
battery pack on and off in a short time. The battery switch cabinet is placed in
the battery room.
Power supply advantages of power UPS power supply
(l) When the mains power is interrupted, it can use its own battery to
convert DC power into 220V AC power through the inverter circuit to supply power
to computers and network systems, ensuring that computers and network systems
can operate normally.
(2) It has a voltage stabilizing effect on the mains power and can
stabilize the voltage when the grid voltage fluctuates.
(3) It can suppress power harmonic interference, instantaneous voltage
drops, high voltage surges, voltage waveform distortion, electromagnetic
interference and other power pollution in the power grid, provide stable voltage
and pure waveform power supply for computers and other equipment, and ensure
computer and network systems. The normal work and data are not disturbed.
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