STR31 / STR33 10 TO 200KVA

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Highlights

• Efficiency Control System (ECS)
• Robust and reliable
• Galvanic isolation
• High overload capacity
• Extensive parallel configurations

Total Protection

STR series UPS provide maximum protection and power quality for mission critical loads, including data centres, industrial processes, telecommunications, and security and electro-medical systems.

STR is an ON LINE double conversion UPS (VFI SS 111 – IEC EN62040-3) with a transformer isolated inverter.

The Master MPS range includes three-phase input and single-phase output versions from 10 to 100 kVA, and three-phase input and output versions from 10 to 200 kVA.

All versions are provided with a 6-pulse thyristor-based rectifier, with or without optional harmonic filters. A 12-pulse thyristor-based rectifier is available on request for the 60 and 80 kVA versions with or without optional harmonic filters.

Easy Source

STR makes supplying the UPS from generator sets and MT/BT transformers simpler and more efficient, reducing power loss in the system and coils, correcting the power factor and eliminating current harmonics created by the loads supplied by the UPS.

In addition to this, the progressive rectifier start up (power walk-in) and the option to reduce battery charging currents, allow for a reduction in the input current uptake.

This means less demand on the source, which is particularly useful when the source is a generator set.

Flexibility

STR is suitable for a wide range of applications including IT and the most demanding industrial environments.

The UPS is suitable for power capacitive loads such as blade servers, from 0.9 leading to 0.8 lagging. With a broad range of accessories and options, complex configurations and system architectures can be achieved to guarantee maximum power availability and the option to add new UPS without interruption to existing installation

Battery Care System: Maximum Battery Care

Normally the batteries are kept charged by the rectifier; when mains power fails, the UPS uses this energy source to power the consumers. Proper battery care is therefore critical to ensuring correct UPS operation under emergency conditions. The SATRON UPS battery care system consists of a series of functions designed to optimise battery management and achieve the best performance and operating life possible.

STR is also compatible with different battery technologies: vented open lead acid, VRLA AGM, Gel, NiCd, Flywheels, Supercaps and Lithium

Specific Solutions

The UPS can be adapted to meet the most specific requirements. Contact our sales team to discuss specific solutions and options not listed in this catalogue

Advanced Communications

• Compatible with SATRON Connect for remote monitoring;
• Advanced multi-platform communications for all operating systems and network environments: PowerShield3 monitoring and shutdown software included for Windows operating systems 10, 8, 7, Hyper-V, 2019, 2016, 2012, and previous versions, Mac OS X, Linux, VMWare ESXi, Citrix XenServer and other Unix operating systems;
• Double RS232 serial;
• 2 slots for the installation of optional communications accessories such as network adapters, potential free contacts, etc.;
• REPO Remote Emergency Power Off for switching off the UPS via a remote emergency button;
• Input for the connection of the auxiliary contact of an external manual bypass;
• Input for synchronisation from an external source;
• Graphic display panel for remote connection

Maximum Reliability And Availability

• Distributed or centralised parallel configuration of up to 8 units redundant (N+1) or power parallel system. Parallel configurations using models with different power ratings are also possible;
• Hot System Expansion (HSE): allows the addition of a further UPS into an existing system, without the need to switch off the existing UPS or transfer them to bypass mode. This guarantees maximum load protection, even during maintenance and system expansion;
• Maximum levels of availability, even in the event of an interruption to the parallel bus cable: the system is “FAULT TOLERANT”.
• It is not affected by connection cable faults and continues powering the load without disruption, signalling an alarm condition;
• Efficiency Control System (ECS): a system to optimise the operating efficiency of parallel systems, according to the power required by the load. N+1 redundancy is guaranteed, with every UPS working in parallel at the best load level possible to achieve higher overall efficiency

Options

• UPS Group Synchroniser (UGS)

Allows two or more non-parallel UPS devices to remain synchronised even during mains power failure. The UGS also enables a SATRON UPS to be synchronised with another power source that is independent and of a different power rating.

• Parallel Systems Joiner (PSJ)

Allows two groups of UPS to be connected in parallel whilst operating, in the event of maintenance (with no interruption to the output), using a power coupling switch.

Should one of the UPS in one of the parallel groups fail, it is automatically excluded.

The PSJ connects the remaining UPS, to the other parallel group via an external bypass, in order to continue to guarantee load redundancy.

Dual Bus Configuration

Solution to ensure redundancy up to the distribution of the power supply to the loads and improved STS operation