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Installation

9

Electrical Operation Test

13.Reconnect the contactor control in-line

disconnect plugs. See Figure 8.
The transfer switch should be in the

normal position. The following procedure

will check the electrical operation of the

transfer switch.

14.Open the normal source circuit breaker to

start the generator set, or start the

generator set at the generator set

controller. See Figure 9. The generator set

should start after any engine-start time

delay set in the transfer switch and/or

generator set controller has completed

timing.

15.Allow the generator set to stabilize at its

rated voltage.

Figure 8. In-Line Disconnect Plug

Summary of Contents for 340 KN Series

Page 1: ...Nonautomatic Transfer Switches Models 340 KN Series Logic Relay Contactor 30 4000 Amperes TP 5585 3 92a Operation and Installation U S A Plant ISO Registered...

Page 2: ...Operation Test 9 Switch Position Source Indicators 11 Transfer Switch Position Lamps 11 Source Available Lamps 11 Control Switches 11 Transfer To Normal Emergency 11 Generator Stop Start if equipped...

Page 3: ...h or substantial property damage if the warning is ignored WARNING Warning is used to indicate the presence of a hazard which can cause severe personal injury death or substantial property damage if t...

Page 4: ...al injury damage equipment or lead to future failures Remove watch rings and jewelry that can cause short circuits Hazardous voltage can cause severe injury or death The Transfer Switch is energized p...

Page 5: ...iring should be inspected at the recommended interval shown in the service schedule replace leads that are frayed or in poor condition Do not operate electrical equipment when standing in water on wet...

Page 6: ...Emergency Source Loads Figure 1 Transfer Switch Location Installation Kohler transfer switches are factory wired and tested Installation requires mounting connection of utility load emergency cables a...

Page 7: ...ster switch on the controller to the OFF position and disconnect battery negative before working on the transfer switch Line Connections Wiring Diagrams are furnished at the back of this manual Interc...

Page 8: ...e death or severe injury On 225 400 Amp switches reinstall the cover shields over the emergency lugs and overlapping neutral accessory 36 lugs If these shields are not in place when the switch is ener...

Page 9: ...iliary Connections Connect auxiliary circuit wires to appropriate control panel terminals as shown on the appropriate diagram see contactor wiring diagrams in the Wiring Diagrams section Any auxiliary...

Page 10: ...checks in the order given in order to avoid damaging the switch Read and understand all instructions on installation drawings and labels affixed to the switch Note any optional accessories that have...

Page 11: ...e switch amperage size below and follow directions for installing the handle See Figures 4 through 7 NOTE A manual operator handle is provided on the transfer switch for maintenance purposes only Retu...

Page 12: ...0 Amp For 1000 4000 Amp Switches Insert manual handle into hole provided in rotating weight See Figure 7 5 Move the installed handle in the direction shown to manually operate the transfer switch The...

Page 13: ...High voltage will cause personal injury damage equipment or lead to future failures Remove watch rings and jewelry that can cause short circuits Voltage Checks 6 Close the normal source circuit breake...

Page 14: ...l operation of the transfer switch 14 Open the normal source circuit breaker to start the generator set or start the generator set at the generator set controller See Figure 9 The generator set should...

Page 15: ...The transfer switch should operate to the emergency position with the generator set producing at least 90 of its rated voltage 17 Reclose thenormal source circuitbreaker 18 Move the TRANSFER TO switch...

Page 16: ...ite Lights to show that emergency source voltage is present but not necessarily at proper voltage and frequency Control Switches Transfer To Normal Emergency Normal Position signals control to cause t...

Page 17: ...mergency power sources before proceeding Move the generator master switch on controller to OFF position and disconnect battery negative before working on the transfer switch Disconnect power sources b...

Page 18: ...ll be connected to the generator Normal Power Return 1 The white normal source available lamp will light when normal power returns Check normal source meters if equipped to see that normal source volt...

Page 19: ...asco Transfer Switch Operation 14 Notes...

Page 20: ...ensions Enclosure Dimensions 30 150 Amp ADV 5238 sheet 1 Enclosure Dimensions 225 400 Amp ADV 5238 sheet 2 Enclosure Dimensions 600 800 Amp ADV 5238 sheet 3 Enclosure Dimensions 1000 1200 Amp ADV 5448...

Page 21: ...ator Control Box Load L2 L1 4 LL1 EL2 EL1 LL2 3 NL1 NL2 Commercial or Normal Source L2 L1 Note Engine Start Terminals 3 4 Are Located on the Contactor 30 150 Amp Lower Left Side 260 400 Amp Above Ts C...

Page 22: ...Box Load L2 L1 4 LL1 EL2 EL1 LL2 3 NL1 NL2 Commercial or Normal Source L2 L1 Note When Overlapping Neutral is Used Wire Neutral Per Dotted Lines Engine Start Terminals 3 4 Are Located on the Contacto...

Page 23: ...ad L2 L1 4 LA EB EA LB 3 NA NB Commercial or Normal Source L2 L1 Note When Overlapping Neutral is Used Wire Neutral Per Dotted Lines Engine Start Terminals 3 4 Are Located on the Contactor 30 150 Amp...

Page 24: ...s in Generator Control Box Load L2 L1 4 LL1 EL2 EL1 LL2 3 NL1 NL2 Commercial or Normal Source L2 L1 3 4 L2 L3 L3 EL3 LL3 NL3 L3 1000 4000 Amp 3 Phase 3 4 Wire ELO Note When Overlapping Neutral is Used...

Page 25: ...1 ONLY Sizes Of Screw Type Terminals For External Power Connections Notes 1 Numbers In Parentheses Are Millimeters 2 Dimensions Are For Reference Only L3 15 48 393 NEMA 3R ONLY 312 12 30 279 11 00 L O...

Page 26: ...MCM 225 400 Range Of Al Cu Wire Size AMPS Switch Rating 15 40 391 Note 1 Numbers In Parentheses Are Millimeters 2 Dimensions Are For Reference Only 2 12 54 1 06 27 11 73 298 19 04 484 15 97 406 406 1...

Page 27: ...tes 1 Numbers In Parentheses Are Millimeters 2 Dimensions Are For Reference Only 20 65 525 32 30 820 17 15 436 10 15 258 3 53 89 7 Typ 21 03 534 NEMA 3R ONLY 531 13 5 DIA HOLE NEMA 1 ONLY 406 10 3 DIA...

Page 28: ...erless Screw Type Terminals For External Power Connections Four 2 AWG To 600 MCM AL CU Wire External Handle Mechanism Optional OVERLAPPING NEUTRAL LOAD NORMAL EMERGENCY 687 17 DIA MOUNTING HOLES 8 PLA...

Page 29: ...38 25 972 NOTES NEMA Type 1 General Purpose Indoor Floor Supported 1 Free Standing Frame Construction 2 Removable Doors Key Locking Handle Single Door Hinged On Right With Single Center Latch For 160...

Page 30: ...2 PIN 4 PIN 22 PIN 10 PIN 1 PIN 16 PIN 3 PIN 15 PIN 21 PIN 14 PIN 9 PIN 8 PIN 13 PIN 18 PIN 19 600 800 Amp COIL CLEARING CONTACTS 11 10 13 12 AUXILIARY CONTACTS 22 3 5 EL2 LL2 NL2 Normal Emergency Loa...

Page 31: ...IN 2 PIN 7 PIN 6 PIN 12 PIN 4 PIN 22 PIN 10 PIN 1 PIN 16 PIN 3 PIN 15 PIN 21 PIN 14 PIN 9 PIN 8 PIN 13 PIN 18 PIN 19 600 800 Amp COIL CLEARING CONTACTS 11 10 13 12 AUXILIARY CONTACTS 22 3 5 EC LC NC N...

Page 32: ...8 TO TERM 57 TO EMERGENCY SOURCE TO NORMAL SOURCE BR BRIDGE RECTIFIER C CAPACITOR ER EMERGENCY RELAY ET EMERGENCY TRANSFORMER D DIODE NR NORMAL RELAY NT NORMAL TRANSFORMER P PLUG SOCKET W PIN DESIGNAT...

Page 33: ...RANSFORMER NR NORMAL RELAY D DIODE ET EMERGENCY TRANSFORMER ER EMERGENCY RELAY C CAPACITOR BR BRIDGE RECTIFIER SOURCE NORMAL TO SOURCE EMERGENCY TO TO TERM 57 TO TERM 58 ET2 ET1 ET3 NT3 NT1 NT2 TB6 P1...

Page 34: ...MERGENCY RELAY ET EMERGENCY TRANSFORMER D DIODE NR NORMAL RELAY NT NORMAL TRANSFORMER P PLUG SOCKET W PIN DESIGNATOR R RESISTOR SW SWITCH TB TERMINAL BLOCK TS TRANSFER SWITCH INTERNAL COMPONENT CONNEC...

Page 35: ...BLE NORMAL 177 62 LIGHT POSITION NORMAL 118 110 LIGHT POSITION EMERGENCY 116 99 To Diagram 294859 Note For Contactor Wiring Refer DISCONNECT PLUG 5 15 1 2 46 33 77 76 75 74 15 33 16 17 18 15 46 76 77...

Page 36: ...T POSITION EMERGENCY 116 99 Refer To Diagram 294859 For Contactor Wiring DISCONNECT PLUG 5 15 1 2 46 33 77 76 75 74 1 46 15 33 16 17 18 15 46 76 77 75 74 16 18 17 5 33 2 1 74 7 16 N E2 E1 N2 N1 75 74...

Page 37: ...3381 Web site www kohlergenerators com Fax 920 459 1646 U S A Sales Fax 920 459 1614 International For the nearest sales and service outlet in U S A and Canada Phone 1 800 544 2444 KohlerrPower System...

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