Eaton PDI TFA Static Transfer Switch
The PDI TFA Static Transfer Switch maximizes the availability and reliability of power for mission critical loads through the automatic seamless transfer from two independent power inputs in an innovative true front access enclosure.
Available in sizes ranging from 250A – 1200A, the PDI TFA Static Transfer Switch maximizes the availability and reliability of power for mission critical loads through the automatic seamless transfer from two independent power inputs in an innovative true front access enclosure.
Description
The PDI TFA Static Transfer Switch maximizes the availability and reliability of power for mission critical loads through the automatic seamless transfer from two independent power inputs in an innovative true front access enclosure.
Available in sizes ranging from 250A – 1200A, the PDI TFA Static Transfer Switch maximizes the availability and reliability of power for mission critical loads through the automatic seamless transfer from two independent power inputs in an innovative true front access enclosure.
Known for its patented transfer algorithms, the PDI TFA STS is unmatched in it’s 2 million hour mean time between failure (MTBF), dual redundant operator interfaces, flash memory firmware updates and hot swappable control logic components. The true front access enclosure allows for installation, service, maintenance and IR scanning from the front of the unit – a first in the industry.
The PDI TFA STS is adaptable for primary (480V) and secondary (208V) topologies by utilizing a common power and controls pass through on the PDI STS and PDU enclosures simplifying installation. The PDI STS also monitors power quality of both sources including real-time waveform capture and monitoring of downstream sub-feed and panelboard breakers through the 10.4” touchscreen display. Compartmentalized power, SCR, controls and communications compartments decrease the risk of arc flash and increase worker safety. Adaptable top/bottom entry/exit for power and communications (BMS/DCIM) enables flexible deployment in a wide variety of mission critical facilities.
PDI TFA STS redefines performance, reliability and its innovative approach to installation and service ultimately achieves the lowest total cost of ownership for your mission critical facility.
Features
250 to 1200A static transfer switch
The PDI TFA Static Transfer Switch is available in 250A, 400A, 600A, 800A, 1000A and 1200A variations with up to 100 kAIC short circuit withstand.
Patented transfer algorithm
The patented VSS (Volt Second Synchronization) switching algorithm achieves automatic switching times as fast as ≤1/2 cycle to ≤3/4 (including sense time) with in-rush current typically ≤1X unit rating.
100% rated fuseless design
Fuses aren’t needed because of the high short circuit current rating of the hockey puck style SCRs (thyristors).
Compartmentalized true front access
An innovative true front access enclosure with separate compartments enables installation, service, maintenance and IR scanning from the front of the unit.
Adaptable service entrances
Every data center is different, hence determining service entrances for input/output power connections and communications for building management systems (BMS) can vary from site to site as well as unit to unit. The PDI TFA Static Transfer Switch was engineered to be both top/bottom entry/exit for the ultimate in flexibility. The PDI TFA Static Transfer Switch can also be ordered where source and output bus is oriented and located for top or bottom preference shortening conductors saving time and money.
Triple internal redundancy
True triple internal redundancy provides the ultimate in power system reliability.
Dual redundant operator interfaces
The PDI TFA Static Transfer Switch
Flash memory firmware updates
Flash memory allows for firmware updates while supporting the critical load.
Real time waveform capture
Waveforms can be captured and displayed in real-time on the 10.4-inch touchscreen display and exported for analysis.
Hot swap control logic replacement
Printed circuit boards and other controls logic components can be replaced while maintaining the critical load.
Line and match with PDI PDUs
The PDI TFA STS is adaptable for primary (480V) and secondary (208V) topologies by utilizing a common power and controls pass through on the PDI STS and PDU enclosures, simplifying installation.
Intelligent monitoring
Status, alarm and power data can be communicated via modbus TCP/IP, modbus RTU and SNMP protocols. Primary or secondary systems PDU downstream branch circuit power data can also be integrated through the PDI TFA STS.
