Auto transfer switches

Description

Designed for continuous current operation and switching of electrical loads between primary power and standby generator sets.

PowertechTM automatic transfer switches, signal generator set startup, automatically transfer power, and return the load to the primary power source once the utility returns and is stabilizied.

High-pressure silver alloy contacts withstand thousands of switching cycles without burnign, pitting orwelding. The require no routine contact maintenance and provide 100% continuous current ratings.

In utility-to-genset applications, the control system utility and genset power. When utility power falls or is unsatisfactory, the switch starts the genset and transfers critical loads to the genset. The switch automatically tranfers loads back to the utility when utility power returns.

Typical - 630 Auto Transfer Switch

In utility-to-utility applications, the control system the primary utility source and transfers the critical load to a secondary utility source when primayr power fails or is unsatisfactory. The switch automatically transfers loads back to the primary source when power is restored.

In genset-to-genset applications, the transfer switch automatically controls multiple genset, allowing one genset to power the load with another genset as standby. The running (lead) unit can be selectd manually or may be changed automatically with abuilt-in change over timer.

Features

Advanced Transfer Switch Mechanism Unique bi-directional linear actuator provides virtually friction-free, constant force, straight-line transfer switch action during automatic operation.

PowertechTM Microprocessor Control - A standard, fully featured microprocessor control with a choice of options. All features, settings and adjuustments are software-enabled for ease of setup and accuracy. Optically isolated logic inputs and high isolation transformers for AC power inputs provide high-voltage surge immunity.

Manual Operation - Manual operating handles, shielded termination, and over-center type contact mechanisms allow effective, manual operation under load (100 - 2500A switches).

Positive Interlocking - Mechanical and electrical interlocking prevent ource-to-source connection through the power or control wiring.

Main Contacts - Heavy-duty silver alloy contacts with separate arcing surfaces and nultileaf arc chutes are rated for total system transfer including overload interruption.

Easy Service/Access - Plug connections, dorr-mounted controls, ample access space, and compatible terminal makings. The control is field programmable.

Product lines, Accessories and Services - DP offer a wide range of accessories and services to precisely suit your requirements.

Certifications - Powertech Transfer Switches are certified to a wide range of standards.

Warranty - Powertech offers single-source responsibility at both the factory and distributor levels for warranty, service, and parts support.