Zenith ZTE Series Low-Voltage Automatic & Manual Transfer Switche
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GE Energy Digital Energy Low-Voltage Automatic and Manual Transfer Switches Power and Flexibility for Critical Source Switching

GE’s Zenith ZTE Series Transfer Switches Power and exibility for critical source switching Today’s Challenges GE: Your Power Quality Partner Momentary loss of electric power to critical loads can endanger life, cause severe financial losses, or both. Since 1930, GE has designed and manufactured Automatic Transfer Switches (ATS) – products specifically designed to keep critical loads energized and protect personnel, facilities and businesses against losses. The technological advances of the Zenith ZTE firmly establishes GE as not only a worldwide leader in the design and manufacture of ATS,...

Healthcare Facilities Critical Infrastructure 7x24 Call Centers, E-Commerce Data Centers Telecom Central Oces Process Control & Manufacturing Distributed Power & Load Management Institutional & Transportation Facilities KEY BENEFITS • Reliability Durable solenoid ATS operated mechanisms and robust electronics, tested for severe EMC and environmental conditions • Low Cost Installation & Quick Commissioning Built-in networking for reduced hardwiring, centrally located customer connections; simple field modification of features without need for factory service • Third-Party Certications UL...

Transition Types Non-Bypass SOURCE 1 Product Specifications • Electrical Ratings • Design & Construction • Features • Sequence of Operations • Applications LOAD Transition Type Electrical Ratings Standard (Open) Transition Delayed Transition Closed Transition Ampere Ratings Poles 40A to 4000A, Continuous Rated 2, 3 or 4 Pole Switching Enclosure Types & Compliance Open, NEMA 1, 3R, 4, 4X (Stainless Steel), 12, Compliance: UL 508, UL50, ANCI C33.76, ICS 6, NEMA 250 Load Types Emergency and standby applications on all load classifications, 100% tungsten rated through 400 amps Short Circuit...

Bypass/Isolation Switching Available in Standard, Delayed and Closed Transition Types Fixed Mounted Manual Bypass Transfer Switch (MTS) The bypass section is a Manual (MTS) switch provided with a quick break/quick make manual load transfer handle and GE‘s control/interlock system consisting of both mechanical and electrical interlocks. The bypass MTS is equipped with Source 1 failure sensing and a time delay to start the engine automatically if the Automatic Transfer Switch (ATS) has been removed for service. The ATS and MTS modules are mounted in a compact enclosure and completely...

Robust Switching Mechanisms Non-Bypass/Isolation Models 800A, 277/480V, 4-pole Closed Transition ATS shown (covers removed for clarity) Electrically-operated, mechanicallyheld, over-center mechanism * Operated via momentarily energized solenoid-driven mechanism * Inherent mechanical interlock design inhibits closure of both sources to the load * Fast operation – contact transfer speed less than 100 msec For ease of inspection, main and arching contacts are visible without disassembly High close-in and withstand capability * UL/IEC 3-cycle (unconditional) fault ratings Handles are provided...

Robust Switching Mechanisms Bypass/Isolation Models 2000A, 277/480V, 3-pole Delayed Transition shown (covers removed for clarity) NEMA pattern bus is standard. Mechanical and compression lugs are available options. (mechanical lugs shown) Easy grip handles for drawout of enclosure onto moveable cart Silver plated bus stabs engage bypass (MTS) finger clusters Power cables do not have to be disconnected to remove the ATS ATS is located on drawout mechanism to facilitate inspection and maintenance (Left Side Angle View) Cable/bus entry area for top and/or bottom routing Load is not interrupted...

The MX350 Control System on the ZTE MX350 Graphical Operator Interface Source (1 & 2) Voltage Sensing Cards (Direct Connect 120-600VAC) Power Supply Card Current Transformer (CT) Card - Provided with metering option Expansion I/O Modules Each module connects to one (1) Input CC Block and one (1) Output CC Block (Field Expandable) MX350 Universal Transformer Assembly (UTA) (cover removed for clarity) Source Voltage Jumper Connections Control Power Modbus Ethernet Port Modbus RS-485 Serial Port MX350 Din-Mount Customer Connection (CC) Blocks (located on right sidewall of enclosure) UTA...

Advanced User Interface & Controls The ZTE Series MX350 Graphical Operator Interface includes a V* VGA, color graphical display. The ZTE is built on the GE Multilin time tested, software hardened UR relay and EPM metering platforms, which has thousands of installations in the field. Easy-to-see status LEDs • Source Availability (Source 1 Green, Source 2 Red) - Indicates source voltage and frequency are acceptable • Source Connected (Source 1 Green, Source 2 Red) - Indicates source contacts are closed and load is being fed from the source • Xfer Inhibit (1 Red) - Indicates ATS is being...

Diagnostics and Event Recording The advanced diagnostic features of the ZTE MX350 can significantly reduce the time needed for trouble- shooting source failure and a wide variety of power system anomalies. Sequence of events recorder • Local storage of 256 time tagged events with • All MX350 controllers on an Ethernet network may be time-synchronized via Network Time Protocol (NTP) to a master PC to align each controller date time stamping Data logger • Configurable 20-channel data logger • User-adjustable sampling rates from Waveform capture/oscillography • Power source outage and other...

Power Quality Metering In addition to standard voltage and frequency monitoring of both sources, the ZTE MX350 can be equipped for extended metering of the connected load. The ZTE MX350 provides true RMS metering for current, voltage, real and reactive power, energy use, power factor and frequency. Direct metering of both source voltages make the MX350 metering equivalent to having power quality meters on each source. The advanced metering features of the • 3 phase and neutral (ground) current: la, lb, Ic, In plus average current (lavg) • Voltage and current unbalance • Voltage and Current...