GE ZTX manual

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- informations concerning technical data of GE ZTX
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Table of contents for the manual

  • Page 1

    72 R - 1 000 9/05 ZT X Series Automatic T ransfer Switches 40-400 Amps GE Zenith Controls Operation and Maintenance Manual e[...]

  • Page 2

    P age Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ii Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Equipment Inspection and Storage . . . . . . . . . 1 1 Final Equipment Inspection . . . . . . . . . . . . . . . 1 1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 3

    ■ ■ GE Zenith Controls 1 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000 ) Each GE Zenith transfer switch is factory wired and tested. A complete information package is furnished with each switch which includes: a. Sequence of operation. b. Description and operation of all accessories supplied. c. Power panel connection diagram and s[...]

  • Page 4

    ■ ■ 2 GE Zenith Contr ols ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) GENERA T OR TERMINAL S N BR U TILIT Y TERMINAL S LOA D TERMINALS T1 T2 T 3 N1 N 3 E1 E 3 E2 N2 T = Load N = Utilit y E = Generato r OPTIONAL A4 CONTA CT T I ON OPERA TES WHEN IN ERA T UTILITY POSITION ILIT Y OPTIONAL A3 CONTA CT TI ON OPERA TES WHEN IN ERA T G[...]

  • Page 5

    ■ ■ GE Zenith Controls 3 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Installation (cont’ d) Control Connections Connecting Engine Start may cause Generator to start. Before connecting, turn Generator OFF . With the Generator breaker open and the Generator control switch off, install the Generator start connections. Note: N = U[...]

  • Page 6

    ■ ■ 4 GE Zenith Contr ols ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Installation (cont’ d) D ANGER HAZARDOUS V OL T A GE (Can Cause Se vere Injur y or Death) T urn OFF all pow er before installation, adjustment, or remo val of transfer switc h or an y of its components. A TTENTION! This applies only to the switc hes with the[...]

  • Page 7

    ■ ■ GE Zenith Controls 5 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Functional T est Functional testing of the automatic transfer switch (A TS) is described in this section. Before proceeding, read and understand all instructions and review the operation of all accessories provided. T o begin the test, close the Utility source [...]

  • Page 8

    ■ ■ 6 GE Zenith Contr ols ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Installation (cont’ d) D ANGER HAZARDOUS V OL T A GE (Can Cause Se vere Injur y or Death) T urn OFF all pow er before installation, adjustment, or remo val of transfer switc h or an y of its components. System V oltage Set tings ZTX controller boards are pre[...]

  • Page 9

    ■ ■ GE Zenith Controls 7 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Contr ol Interface Pushbut tons TEST - Pressed and held for 1 second Simulates a power outage, starts the Generator and transfers the A TS to S2. EXER SET - Sets an Automatic Exerciser BYP ASS TIMER - Pressed while E is blinking bypasses any remaining countdown[...]

  • Page 10

    Using the K eypad Contr ols TEST KEY The TEST KEY initiates a transfer sequence to S2 and holds the A TS in that mode until either the CANCEL key is pressed or , a situation arises to cause the A TS to go back to S1(ie, S2 actually fails). In order to per form a TEST , the A TS must be on S1 and S1 must qualify as a "good source" by being[...]

  • Page 11

    ■ ■ GE Zenith Controls 9 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Contr ol Interface (cont’ d) 28 Day B A JP4 JP5 14 Da y B A JP4 JP5 7 Day B A JP4 JP5 21 Day B A JP4 JP5 Automatic Exerciser Jumper S et tings No Load B A JP6 JP6 Load Figure 8 Automatic Generator Ex erciser The ZTX automatic generator Exerciser can per form [...]

  • Page 12

    ■ ■ 10 GE Zenith Contr ols ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Contr ol Interface (cont’ d) In-Phase Monitor ZTX A TS senses when the sources are as far out as 2 Hz or as close as .01Hz in frequency differential of each other and transfers the load to and from either source in-phase. If turned on, R50 In-Phase monitor [...]

  • Page 13

    ■ ■ GE Zenith Controls 11 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Example S ystems Circuit Breaker Main Breaker Panel All Loads Utility Source Transfer Switch Circuit Breaker Generator Source Loads Utility Panel Utility Source Transfer Switch Loads Circuit Breaker Distribution Panel Generator Source P ar tial Co verage S yst[...]

  • Page 14

    ■ ■ 12 GE Zenith Contr ols ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) T ypical Diagrams E 3 N 2 CCN SN S C OM SE E2 N1 N2 CCE E1 O PTI O NAL 3 E 2 N 3 2 4 1 5 6 1 0 1 3 P ow er Circuit Sc hematic 40-240 Amps P ow er P anel Lay out Interconnect Plug Figure 1 1 Figure 12 Figure 13[...]

  • Page 15

    ■ ■ GE Zenith Controls 13 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Replacement P ar ts BR CN/CE SCN/SCE SP+L SN A4 SE A 3 Standard T ransition — 40 to 20 0 Amps TA G DESCRIPTION VO L T AG E CN/CE Solenoid Solenoid Plunger and Link SCN/SCE Coil Cutout Switc h A3/A4 Auxiliary Contacts 120 208 220 240 380/416 440/480 K-2207 K-[...]

  • Page 16

    ■ ■ 14 GE Zenith Contr ols ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) Replacement P ar ts (cont’ d) Standard T ransition - 225 to 40 0 Amps Stock Numbers by Ampera ge Ta g Descri p tio n Re co mmende d as S p are s 225 , 250 * 260 , 300 * 4 00 Cable Connection Lu g S -2701 N 1 , 2 , 3 N E 1 , 2 , 3 N T 1 , 2 , 3 N Wire S iz e[...]

  • Page 17

    ■ ■ GE Zenith Controls 15 ■ ■ ZTX Operation and Maintenance Manual (72 R - 1 000) T r oubleshooting Symptom P ossible Cause Corrective A ction S1 or S2 Available LED not lit Sources either fully or partially unacceptable Check for under voltage S1 or S2 breakers open Check for missing phase (s) Check for under frequency A TS will not retran[...]

  • Page 18

    A Product of GE Consumer & Industrial General Electric Company 830 West 40 th Street, Chicago, IL 60609 USA 773 299-6600 , Fax: 773 247-7805 www .geelectrical.com g GE Zenith Controls[...]