Why are there different price classes of UPS although the power of their supplied load is the same? To cater to different market segments, different technologies with varying degrees of sophistication are used, which also offer different levels of protection. Schrack Technik covers the complete power spectrum with outputs from 240 W to 1 MW, in all the technology versions described below, as floor-standing units, rack-mounted units and modular systems, for single-phase or three-phase connection. Of course, our highly trained service team is available for commissioning, maintenance and service activities.
According to EN 62040-3, there are three design variants of UPSs:
A UPS of this class transfers the current directly from the input to the output during normal operation. In addition, the input supplies a rectifier which charges the batteries. If the mains supply fails, the output is switched to an inverter which is fed from the batteries. Depending on the model, switching takes place with a delay of up to 10 milliseconds (ms). In many cases, the output voltage in battery mode is rectangular or trapezoidal ("pseudosine"). For critical loads, interruptions of this duration are not desired. Typically, these types of UPS are therefore used in home applications.
UPSs of this category use a bidirectional inverter as the central component. It generates the DC voltage for charging the batteries from the AC voltage at the input or the AC voltage at the output from the DC voltage of the accumulators, as required. In mains operation, the output voltage is regulated and stabilised in the event of variations in the input voltage (AVR - Automatic Voltage Regulation). Therefore, it is no longer necessary in such cases to switch to battery operation. As a result, the charged batteries remain available for an emergency. There are versions with trapezoidal ("pseudosine" or "step-wave") and versions with sinewave output voltage. The interruption when switching from mains to battery is much shorter than with the VFD (off-line) type UPSs.
In an online UPS, the input is routed directly to a rectifier which charges the batteries. Their inverter feeds the load to the output at all times. In normal operation, i.e. when mains voltage is present at the UPS input, the inverter draws the necessary energy via the rectifier. In the event of a mains failure, it is supplied from the battery system.
Regardless of the quality of the input voltage, the AC voltage at the output is always generated from the DC voltage of the so-called DC link using a downstream inverter. This effectively creates a new network which is independent of the input. Disturbance variables, such as: harmonics, frequency variations and voltage failures on the input side do not affect the supplied load. The load is always supplied with sinusoidal output voltage and there is never an interruption in the voltage supply.
This design is the ideal solution for protecting mission-critical systems, from security devices or telecommunication equipment to IT systems, to ensure the highest level of reliability.
GENIO Flex Plus Dual is available with sinusoidal digital power output between 1100 VA and 3000 VA. Using top-notch communication and connection technologies, it is the ideal solution for high-end customers seeking high levels of reliability and extreme versatility of the power supply system. GENIO Flex Plus Dual means top safeguarding of peripherals, conventional servers and network backup systems. GENIO Flex Plus Dual has a functional, modern design and includes cutting-edge features. The UPS provides efficiency levels of up to 98%. It has an output power factor of 0.9.
Superior protection
The automatic voltage regulator (AVR) provides protection from surges, overvoltages and undervoltages, without battery intervention. Reduced battery usage ensures that the battery set is 100% available for mains power supply failures and is able to provide greater autonomy. EMV filters provide additional protection from voltage surges and transients. When the mains power supply fails, the load is powered by the inverter and receives a perfectly sinusoidal supply.
Versatility
GENIO Flex Plus Dual can be installed as a tower or in 19" rack cabinets. The display panel in the front panel can be easily removed and rotated to suit the type of installation required. GENIO Flex Plus Dual is equipped with an emergency power off (EPO) contact that allows a remote shutdown in emergency situations. The cold start function allows the UPS to power up with no mains power supply present or in the event of a mains power failure. GENIO Flex Plus Dual models have a backlit LCD display providing UPS status information and measurement values.
The GENIO Tower Plus series has a functional, modern design and includes cutting-edge features. GENIO Tower Plus uses online double conversion technology, resulting in the highest levels of reliability and maximum protection for critical loads. For business continuity applications requiring long battery runtimes, battery autonomy can be extended up to several hours using ER models fitted with a more powerful battery charger. A deep discharge protection reduces battery ageing.
Operating flexibility
Different operating modes that can be programmed according to user requirements and the load to be powered have been introduced in order to reduce energy consumption:
GENIO Dual Midi is a new series of extremely powerful online double conversion UPS, designed for supplying power to a wide range of devices such as servers, hard drive data storage centres, telephony VoIP equipment, network and industrial applications. It is ideal to supply Blade server systems with power, supporting their high-power factor mains adaptors. At a height of only 2U the USPRD series is ideal for 19" cabinet installation.
Easy installation
GENIO Dual Power is the best available UPS system for supplying relevant, business-critical loads and electrical medical equipment. It offers maximum flexibility of installation and use (digital display and user-replaceable batteries). The extensive communication options make GENIO Dual Power a UPS for many applications, from IT to safety and security applications.
Enhanced output voltage quality
The optimised accessories available for the GENIO series UPS systems are designed to cover all applications. This includes pre-configured bypasses for wall or rack mounting as well as installation rails for proper and secure mounting of UPSs in network cabinets.
The free UPSMon software allows a safe and reliable shutdown of connected IT appliances in the event of a mains power supply failure. UPSMon for different operating system is available for free download from www.ups-technet.com. It is connected and operated via a USB or RS232 interface integrated in the UPS. Remote monitoring is also possible with the optional USNETMA204 network card. USMULTI384 provides contacts delivering status information of the UPS.
