Automatic Transfer Switch

The product adopts electromagnetic driving, it need not additional control source.

Automatic Transfer Switch Feature:

1. Release type: Intelligent release, under voltage release, instantaneous (or time-relay) release, and shunt release.

2. Multiple Shot time bands under 100ms optimally fit above the instantaneous cleaning times.

3. Automate instantaneous setting (RELT) mitigates arc flash hazard while maintaining completed selectivity during normal operation. Remote activation can be safely achieved with off-the-shelf devices or, for network systems, RELT can be activated via the communications port. RELT annunciation can be direct or indirect, either locally on the equipment or remotely via control devices or the industrial network.

4. Adjustable ST and GF Zone Selective Interlocking optimized and unrestrained bands.

5. Zone Selective Instantaneous protection, multiple zone protection, 3 cycle cleaning and selectivity are provided simultaneously.

6. Instantaneous trip adjusts up to 30X trip plug rating.

7. Open communication interface.

8. Time current curves compatible with traditional fuse cures, along with more and tiger breaker curves ensure accurate coordination. Regardless of what mix of protective devices your system includes - electronic trip, thermal magnetic circuit breakers of fuses - the EntelliGuard TU has the right curve shape to fit your system' s needs.

9. Ground fault curves compatible with common fuse ground fault curves. If you have fused feeders under the circuit breaker with the ground fault protection, you can optimize selectivity without giving up protection and still meet code-mandated requirements.

10. The industry's true Zone Selective Interlock (ZSI) works with Ground Fault Protection (G' FP), Shot Time (ST) and Instantaneous (I), and includes the ability to set precise clearing time of each circuit breaker when restrained or unrestrained.

Working Condition:

1. Ambient temperature: -5'C~+40'C, average in 24 hours <=+35'C

2. Related humidity at +40'C <=50%, higher related humidity is allowable at lower temperature.

3. Protection IP40, pollution III, application classification B

4. The inclination to vertical of circuit breaker <=5 degree, for mining circuit breaker <=15 degree

Application:

Be applicable for distribution network of AC 50Hz, rated voltage up to 660V (690) included, rated current 630A~6300A, to distribute the electric energy and protect the circuit and powered device against overload under voltage, short circuit and single phase earth, etc.

Automatic Transfer Switch