Introduction GE Zenith Transfer Switches are used to provide a continuous source of power for lighting and other critical loads by auto- matically transferring from source 1 power to source 2 power in the event that source 1 voltage falls below preset limits.
Safety / Installation (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. The safe operation of your switch is GE Zenith’s focus. The proper storage, installation, operation and mainte- nance will help increase the life of the switch.
Installation (cont’d) (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. Power Connections GE Zenith transfer switches are supplied with UL listed solderless screw type terminals as standard for the Source 1, Source 2 and Load power connections.
Installation (cont’d) (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. Control Connections Figure 2 Engine Start Connections Input/Output Connectors to I/O Modules A complete information package is furnished with...
Installation (cont’d) (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. Figure 3 Engine Start Control Connections The engine-start terminals are clearly identified by a label on the microcontroller backplate. In the case of...
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Source 1 Voltage is above the preset restore value. The Gen-Set will start and run while Source 2 stop Delay Timer is timing. GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 Close the External (up-stream) Source 2 line circuit breaker.
The word above the key changes depending on which screen is being displayed. GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 no changes can be made without entry of the access code. The factory set six-digit access code is located on a white label on the back of the unit (see figure 9 pgs.
Once satisfied, the W timer will begin timing to transfer to Source 2. Standard Features, MSTDG Option Pkg. Test Switch, Momentary Auxiliary Contact: Closed when the switch is in Source 2 position. Auxiliary Contact: Closed when the switch is in Source 1 position.
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Source 2 position. This assumes that the outage will be an isolated event. When this Feature is set to ON: The transfer Switch is committed to transfer to Source 2 position once the W timer has begun timing, even if Source 1 power returns before the transfer to Source 2.
In addition to the features listed under the MSTDG Option Package, this enhanced package includes the following features: Additional Auxiliary contact: closed when switch is in Source 2 position. Additional Auxiliary contact: Closed when the transfer switch is in Source 1 position.
Manual Transfer Switch transfers in either direction by depressing designated pushbuttons. Digital Power Meter with Display: Amps, Volts, and Frequency. GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 Digital Meter w/Display of Amps, Watts, Volts, Frequency, KVA, KVAR, PF, etc.
19. Cursor is indicated as a line under character to be changed. Change values with up and down keys. 20. Press SAVE when complete. 21. Press MORE repeatedly until SET USER SETUP then press BACK then ESC to the S1 OK screen. -1000D) GE Zenith Controls...
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No-Load Exerciser Or allow the controller to complete retransfer to Source 1 If the CDT Exerciser is Factory configured for a Load Exerciser GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 (cont’d) How to Bypass the next exercise event and Keep...
To save value and to To previous field move cursor to next or to exit screen. field to be changed. -1000D) Load No-Load (CDP) Exercise Indicator Exercise duration for this event in hours and minutes up to 10 hours per event GE Zenith Controls...
Customer Input Voltage PROG 1 PROG 2 GRD (Input Sink) Controller Outputs have "Limited" Source Capacity. NIA OUT Use only GE Zenith-specified Output Modules. ELEV. PRE. OUT ALARM OUT MOTOR DISC. OUT Output Contacts INHIB.>S1 INHIB.>S2 R1 Output Contact Rating: 10A @ 250 VAC or 30 VDC...
Customer Input Voltage PROG 1 PROG 2 GRD (Input Sink) Controller Outputs have "Limited" Source Capacity. NIA OUT Use only GE Zenith-specified Output Modules. ELEV. PRE. OUT ALARM OUT MOTOR DISC. OUT Output Contacts INHIB.>S1 INHIB.>S2 R1 Output Contact Rating: 10A @ 250 VAC or 30 VDC...
Customer Input Voltage PROG 1 PROG 2 GRD (Input Sink) Controller Outputs have "Limited" Source Capacity. NIA OUT Use only GE Zenith-specified Output Modules. ELEV. PRE. OUT ALARM OUT MOTOR DISC. OUT Output Contacts INHIB.>S1 INHIB.>S2 R1 Output Contact Rating: 10A @ 250 VAC or 30 VDC...
Testing A periodic test of the transfer switch under load conditions is recommended to insure proper operation. (See National Electric Code articles 700 and 701) ATS Testing Start generator and verify proper voltage, frequency and phase sequence (match to Source 1). Shut down gen set and place in Auto.
MX controller initiates a transfer signal through the SCR-E to operate the main transfer operator. The load is now transferred to Source 2 line. The transfer switch is mechanically locked. SN limit switch awaits the next operation to Source 1. Restoration of Source 1 Power: When Source 1 power reach the preset "Restore"...
Troubleshooting and Diagnostics HAZARDOUS VOLTAGES CAN CAUSE SEVERE INJURY OR DEATH. These charts may indicate problems that require authorized GE Zenith service personnel. Hazardous voltages may exist on termination plugs other than those that go into the MX150. General Troubleshooting The following troubleshooting guide is used to recognize, and determine basic faults.
Should debris contaminate the mechanism, clean and apply additional Lubriplate. GE Zenith can provide complete preventative main- tenance services. Please contact the GE Zenith Technical Services Department for additional information. GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70...
Power Panel and Replacement Parts Standard Transition - 40 to 260 Amps Solenoid Type SCR-N SCR-E CN/CE SCN/SCE ZTG/ZTGD Operation and Maintenance Manual (70 -1000D) GE Zenith Controls...
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Power Panel and Replacement Parts Standard Transition - 400 to 600 Amps Molded Type GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 CN/CE -1000D) (cont’d) N1 N2 N3 NN SCR-N SCR-E...
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GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 -1000D)
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ZTG/ZTGD Operation and Maintenance Manual (70 -1000D) GE Zenith Controls...
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GE Zenith Controls ZTG/ZTGD Operation and Maintenance Manual (70 -1000D)
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Zenith Controls A Product of GE Industrial Systems General Electric Company 830 West 40 Street, Chicago, IL 60609 USA 773 299-6600 , Fax: 773 247-7805 www.geindustrial.com...