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GE Zenith Controls
ZTSCT/ZBTSCT Series
Closed Transition Transfer
& Transfer Bypass - Isolation Switches
100-4000 Amps
71R-5000A
Operation and Maintenance Manual
11/04
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Authorized Service For GE parts and service, call: 773 299-6600 Table of Contents Page Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Equipment Inspection and Storage . . . . . . . . . .11 Test Options . . . . . . . . . . .
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Safety DANGER HAZARDOUS VOLTAGE (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. 2. Verify that all cabled connections are The proper storage, installation, operation and mainte- correct and that phase rotation of both sources nance will help increase the life of the switch. match. 3. Check engine start connections. 4. Verify the correct connectio
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Installation DANGER HAZARDOUS VOLTAGE (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 SPREADER BAR GE Zenith transfer switches are supplied with UL listed 45° solderless screw type terminals as standard for the H Source 1, Source 2 and Load power connections. Table 1 lists the number and sizes of cable lugs supplied as standard for each switch amp rating. Connect the Source 1, Sourc
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Installation (cont’d) DANGER HAZARDOUS VOLTAGE (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. Initial Energization 4 1 Before proceeding, refer to the information package supplied with the ATS and read and understand the P Relay 5 2 information on all accessories provided. E (Engine Start) Contact rating is 10 Ampere at 120VAC 6 3 1. Unlock the enclosure. or 28VDC Gold plated 2. Open the enclosure.
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Installation (cont’d) 1. Unlock the enclosure. Initial Energization (cont’d) 2. Open the enclosure. After all options and accessories are checked and 3. Place the Disconnect Switch in the Inhibit. verified, follow these steps to set up the ATS. Refer to Entelli-Switch 250 display Figure 5. The annunciation NOTE: This step is only performed if the “DS” Option was purchased. LEDs illuminate to indicate (1) source availability, (2) ATS position, and (3) Entelli-Switch 250 control 4. Close the ex
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Installation (cont’d) DANGER HAZARDOUS VOLTAGE (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 6 Clock Program Backup Battery Remove protective Engine Start strip to enable clock Connections functions Network Connector Input/Output Connectors to I/O Modules To R/T Box To Power Panel A complete information package is furnished with The terminals are clearly identified by a la
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Entelli-Switch 250 Controller Entelli-Switch 250 Controller Consists of two major assemblies: Engine Start Relay P I. The Microprocessor contains the following: I/O Interface Entelli-Switch 250 Board A. Entelli-Switch 250 Board - Customer Input and Output (I/O) for system interface. Located on the left hand side of the back of the unit (see figure 7) 1. I/O accessories that can be found here are: a. Engine start relay P output Battery Strip b. Pre-Signal to transfer T3, W3 and and Access UMD ou
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Entelli-Switch 250 Controller (cont’d) LCD & Keypad These options are accessible through the LCD and The factory set six-digit access code is located on a white keypad (see figure below). To become familiar with the label on the back of the unit (see figure 11 pgs. 16-18). options loaded into a particular unit, scrolling through the SET and CFG menu will show the descriptions of The Entelli-Switch 250 has many logic options. Each the options (see pages 16-17). These menus are the very controller
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User Setting for Voltage & Frequency Standard 3-Phase Sensing on 3 and 4 Pole Units Source 1 Under Voltage "Fail" Factory Default: 80% Under Voltage "Restore" This adjustment determines the low voltage threshold. Factory Default: 90% Adjust via the SET menu. Range is 75% to 98% in 1% This adjustment determines the minimum acceptable increments (see page 17). voltage required to transfer to Source 1. "Fail" must be a minimum of 2 % below "Restore" Adjust via the SET menu. Range is 85% to 100% in
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Accessory Group Packages Table 3 Group Packages Accessories STDS EXES CONS SENS SPES PSGS 6P A1 A1E A3 2 2 2 2 3 A4 2 2 2 2 3 Calibrate CDT CDP DS** DT DW E EL/P K/P L1 L2 L3 L4 LN P1 Q2 Q3 Q7 R1-3 R15D R16 R50 S5P S12P S13P T 2 2 2 2 2 2 T3/W3 U UMD 2 2 2 2 2 2 VI W YEN Standard Accessory included in the group package. Optional Accessory not included but can be added to group package. Optional Accessory. Can not be used with accessory having the same symbol. N/A 2 2 Denotes an Accessory with 2
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Accessory Definitions 6P CDT Test Switch, Momentary Load or NO-Load. One event exerciser with adjustable Engine exercise timer. Exercise duration can be set 6A between 5 and 60 minutes in 1 minute increments. Can Test Switch, Maintained Auto/Momentary Test be configured to run every 1, 7, 14, or 28 days. Factory Default is 20minutes. When exerciser is impending, 6AP (*E*) appears in the upper right hand corner of LCD Test Switch, Maintained/Momentary utilizing keypad screen. See page 14 for ins
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Accessory Definitions (cont’d) M1 Q7 Single Phase Amp Meter Inhibit transfer to Source 1 circuit. Energize Q7 input to prevent transfer to Source 1. M2 Three Phase Amp Meter R1-1/R1-3 Source 1 Over Voltage sensing for single M80 and three phase systems. 3000 Digital Power Monitor Source 1 Over Voltage "Fail" Factory Default: 110% M82 This adjustment determines the maximum acceptable 5200 Digital Power Meter over voltage. Adjust via the SET menu. Range is 105% to 110% in 1% increments (see pa
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Accessory Definitions (cont’d) of BYPASS DELAY button YEN or if Source 2 fails. R50 In Phase Monitor this feature restricts Live to Live S12P Source Transfers to occur unless both Sources are within Auto / Manual Selector 7 electrical degrees or less of each other. (live Source to In "Auto" position, the Automatic Transfer Switch live Source transfers usually occur during transfer back functions automatically as specified with the Switch to Source 1 or during Testing). R50 does not change drawin
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Accessory Definitions (cont’d) 5 minutes. Adjust via SET menu (see page 18) windows UMD W Universal Motor Load Disconnect Circuit: Auxiliary Time Delay (S2) Source 2 Stable Timer. To delay trans- Contact opens 0-60 seconds prior to transfer in either fer to Source 2. Adjustable 0-5 minutes in 1 second direction, re-closes after transfer. Can be configured by increments. Standard setting is 1 second. Adjust via SET end user for Pre-transfer, Post-transfer, or both. menu (see page 18) VI YEN Volt
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CDT One Event Timer Exerciser • If the CDT Exerciser is Factory configured for a Load / No-Load Load Exerciser, the Controller will immediately start One event Exerciser with adjustable Timer. Exercise a load exercise. The controller will start the duration can be set between 5 and 60 minutes in generator, transfer the load to Source 2 and remain 1 minute increments. Can be configured to run every in Source 2 for the duration set for EXER S2 RUN 1,7,14, or 28 days. Factory default is 20 mi
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CDP Clock Exerciser Load / No-Load Clock Exerciser 6. Cursor is indicated as a line under character to Allows the Generator to start and run unloaded or to be changed. Change values with up and down keys. simulate a power failure, start Generator and run under Press SAVE after each entry to save value and to load. Can be configured by the end user for 1, 7, 14, 28, move to the next value to be changed. or 365 day cycles. 7. Press BACK when complete. • A total of 7 independent No Load exercise
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Entelli-Switch 250 User Setup - CFG Menu Turn options ON or OFF via keypad through the CFG menu Enter six digit access code (The factory assigned six-digit access code is located on the back of the controller) 1 WARNING 4 2 5 Controller Inputs must be relay Isolated. 1 3 6 A2 A1 Engine Start Relay (De-Energized) 14 11 12 RELAY (-) (+) Network Communications COM (Option) J2-3 Customer J2 Input N.O N.C Voltage * 1 PROG 1 To 2 J2/J4 PROG 2 Inputs 3 GRD (Input Sink) 4 LS OUT 5 Controller Outputs h
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Entelli-Switch 250 User Setup - SET Menu Change adjustable values through the SET menu. Enter six digit access code (The factory assigned six-digit access code is located on the back of the controller) 1 4 WARNING 2 5 Controller Inputs must be relay Isolated. 1 3 6 A2 A1 Engine Start Relay (De-Energized) 14 11 12 RELAY (-) (+) Network Communications COM (Option) J2-3 Customer J2 Input N.O N.C Voltage * 1 PROG 1 To 2 J2/J4 PROG 2 Inputs 3 GRD (Input Sink) 4 LS OUT 5 Controller Out
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Entelli-Switch 250 User Setup - System Info View System Data Enter six digit access code (The factory assigned six-digit access code is located on the back of the controller) 1 WARNING 4 2 5 Controller Inputs must be relay Isolated. 1 3 6 A2 A1 Engine Start Relay (De-Energized) 14 11 12 RELAY (-) (+) Network Communications COM (Option) J2-3 Customer J2 Input N.O N.C Voltage * 1 PROG 1 To 2 J2/J4 PROG 2 Inputs 3 GRD (Input Sink) 4 LS OUT 5 Controller Outputs have Limited Source Capacity. 2 NIA OU
