Like all power electronics equipment, Uninterruptible Power Supplies (UPS) progressively and constantly incorporate new technological functionalities. That seek the most effective and reliable energy protection solutions and the cost involved is reasonable APC Smart UPS Prices in Pakistan.
And the versatility, the ability to adapt to the specific needs of each client, is precisely one of the main characteristics that UPS currently offer. These are functionalities that may or may not incorporate into the different models depending to develop applications.
And another especially relevant feature at the moment is its high energy efficiency. In UPSs with the Eco/Mode operating mode. This can be up to 99%, while in UPSs in On-line mode, its energy efficiency is greater than 96%.
The Technological Evolution of UPS’s
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In the 1960s, the first UPSs marketed sought to stabilize the output voltage and continue to support the load, without interruption, in the event of mains supply failure and with limited reliability.
In the 1970s, UPSs introduced static bypass. With an architecture that substantially improved overall reliability. A switch that allowed seamless load transfer to the standby power grid if failure or overload.
Cloud Boom to Respond with Modular Technology
And, more recently, the cloud boom has generated an important technological evolution of UPSs. Which have had to respond with modular technology to the high levels of security. That the protection of Data Center servers requires.
These are modular UPSs that contain a large number of modules connected in redundant parallel. Which significantly improve energy availability and substantially. To increase the safety of classic power systems, by combining efficiency, flexibility, scalability, redundancy, and reliability.
Technological Evolution
Parallel to the technological evolution that UPSs have experienced as a result of the irruption of the cloud. Another factor that has also contributed to this evolution in recent years has been its digitization and connectivity. Especially as a consequence of the development of the Internet of things (IoT) and the new needs of Industry 4.0.
In this area, UPSs are no longer an independent element and are becoming smart grid nodes that help manage and optimize the energy system, controlling its status and load through equipment monitoring.
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The New Technological Features
The latest generation UPSs incorporate -jointly or separately- the following technological functionalities:
High Efficiency mode
Dedicated electronic devices and control algorithm, which allow the batteries to be dynamically isolated from the equipment’s DC bus, so that we can power the inverter at a lower DC voltage.
Scheme High-Efficiency
Eco mode/Mode
Selectable operating mode where the loads power directly by the static bypass as long as it is within the acceptable voltage and frequency margins.
Smart-Efficiency Mode
In this mode, the equipment distributes the loads among the least number of modules possible to find the maximum point of efficiency in operation.
IoT
Equipment monitoring system and remote management options, notification of incidents, monitoring of the health status of the equipment and preventive maintenance actions. There are different communication and integration interfaces in platforms or virtualized environments that enable this function.
Serial Interfaces
The communication channels incorporated in the latest generation UPSs are multiple and varied: USB interface, RS-232 interface, RS-485 interface, Nimbus/SNMP-Ethernet card slot, free slot, digital inputs, relay outputs and EPO signal (emergency stop).
Silicon Carbide (SiC) Devices
It is the ultimate in performance and efficiency. They allow to work in a much larger temperature range and at much higher switching speeds, without degrading their performance.
Redundant Power
Redundant power supplies for the control and the static bypass switch, which ensure the continuity of energy even in the event of failure of the equipment itself, providing maximum availability.
Modular Design
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Power blocks, through repetitive design, divided by phases and internally paralleled for power increase. The design optimizes manufacturing and reliability, and reduces intervention time in the event of an incident (MTTR – mean time to repair).
Modular design optimizes manufacturing and reliability.
Double Bypass Safety
Double bypass circuit, standard, for all models. On the one hand, a static bypass to deal with unforeseen overloads or abnormal equipment operating situations. And, on the other hand, a maintenance bypass to allow interventions in the equipment without causing the disconnection of the loads. Continuity of power supply to the loads in any situation.
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LCD screens
It facilitates the handling and understanding of the information in an intuitive environment for its control and management. Touch screens with block diagram of the equipment and all the information on measurements, parameters, and warnings.
Touch screens with block diagram of the equipment.
Battery Watch
Monitoring and surveillance of the state of the batteries. Regulating the charge based on the temperature. The consumers connected or the type of battery. Extends the life of the batteries. Reduces maintenance costs and recharges the batteries in minimum time.
Cold Start Battery
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Start of the system through the batteries, when the network is not available. It allows, in situations of maximum criticality, to have electrical power supply to the loads.
Transformer Less Technology
Architecture design of transformer less equipment with high power density. It reduces the dimensions and weight to transform that into a smaller footprint of space occupation, as well as lower heat losses that imply a reduction in cooling needs.
Dynamic Charging Mode
Surplus power from the rectifier, always prioritizing the power supply to the loads. We can use to recharge the batteries with higher current. It allows to recharge the batteries more quickly in cases of long autonomies, thus advancing the availability of autonomy.
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Back Feed Protection
Provides additional input protection in the event that the shunt bypass thyristors short-circuited. The use of the internal back feed contactor on the by-pass line provides safety in fault situations occurring on the static by-pass line and prevents power from rising on the input.
Hot-Swap and Hot-Plug Connection
It allows adaptation to future needs without interrupting the protection of critical loads, while achieving a mean time to repair (MTTR) of less than 10 minutes. Hot-pluggable modules, without the need to interrupt service for expansion/maintenance/change operations of the power modules, the bypass module, or the touch display.
VFI Double Conversion Technology
Double conversion between input and output, AC/DC + DC/AC, providing a clean, stable, and reliable voltage at the output. It protects the load from all disturbances in the electrical network and supplies it with the highest quality voltage.
Very Compact Design
It allows to reduce the surface occupied on the floor, providing higher power density, and resulting in lower cost of ownership (low TCO).
Redundant Fans
The redundant fan system with independent air flow circuits in the rectifier and inverter systems of each power module. Also, the redundant safety in one of the most necessary elements in maintaining the optimal operating conditions of the modules
EPO – Emergency Power Off
Emergency stop switch to completely isolate the output in emergency situations. It offers electrical isolation of the outputs to prevent the possible spread of incidents during an emergency.
High Efficiency in Double Conversion
3-level PWM technology power modules with integrated IGBT packs. Reduces cooling costs and increases energy efficiency, lowering total operating expenses (OpEx).
Compatibility With Generator Sets
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The UPS allows to reduce the peak starting current through different settings.
- Sequential Starting of The Two Internal Stages (Thyristors And PFC).
- As Sequential Starting in Parallel Systems (Configurable Start Time),
- Programmable Soft Start Time (Walk -In Time),
- Deactivation Of Battery Charging
- And Delay of Fast Battery Charging Activation.
The fact of reducing the peak current start of the UPS, allows to reduce the dimensioning of the generator sets that feed said equipment in case of emergency. This translates into a lower TCO cost.
Battery Temperature Probe
The UPS temperature probe makes it possible to compensate the floating voltage of the batteries. This is based on the temperature where the batteries install.
Load Sync
This accessory allows synchronizing the output of the UPS, when working as an inverter, with an external power supply
LBS (Load Bus Synchronization)
Optional module to keep the outputs of two completely independent UPSs synchronized, even if they come from two different power sources.
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