Kohler 340 KN Series Operation And Installation
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Kohler 340 KN Series Operation And Installation

Kohler 340 KN Series Operation And Installation

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

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Summary of Contents for Kohler 340 KN Series

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

  • Page 2: Table Of Contents

    Contents Safety Precautions & Instructions ......Ratings ........... Installation .

  • Page 3: Safety Precautions & Instructions

    Safety Precautions Safety Precautions & Instructions NOTE Note is used to notify people of installation, Transfer Switch, like other operation, or maintenance information which electro-mechanical device can pose potential is important but not hazard-related. dangers to life and limb if improperly maintained or imprudently operated.
  • Page 4 Hazardous voltage can cause severe WARNING injury or death. The Transfer Switch is energized; proceed with care! High voltage cause personal injury, damage equipment, or lead to future failures. Remove watch, rings, and jewelry that can cause short Hazardous voltage. circuits.
  • Page 5 Safety Precautions Hazardous voltage can cause severe Hazardous voltage can cause severe injury or death. Disconnect inner panel injury or death. Disconnect harness plug harness at in-line connector. This will before installing any accessories involving de-energize circuit board and logic circuitry, connection to transformer assembly primary but allow transfer switch to continue to supply terminals.

  • Page 6: Ratings

    Switch Normal Emergency Source Source Loads Figure 1. Transfer Switch Location Installation Kohler transfer switches are factory wired and Unpacking tested. Installation requires mounting, Carefully unpack or uncrate switch and check connection of utility, load, emergency cables for damage. Report any damage immediately and any auxiliary contact/control circuits.

  • Page 7: Mounting

    asco not lift the switch at any other points. Protect Hazardous voltage will cause severe injury arc barriers from impact at all times. or death. De-energize both normal and emergency power sources before Mounting proceeding. Move the generator master All enclosed switches have the control panel switch on the controller to the OFF position mounted on the cabinet door.
  • Page 8 Installation away excess oxidation inhibitor. Tighten cable Hazardous voltage can cause death or lugs to the torque specified in the following severe injury! On 225--400-Amp switches, table. reinstall the cover shields over the emergency lugs and overlapping neutral (accessory 36) Note lugs.

  • Page 9: Auxiliary Connections

    asco Figure 2. In-Line Disconnect Plug All internal connections are made at the appropriate diagram (see contactor wiring factory. The transfer switch and the control diagrams in the “ Wiring Diagrams” section). panel each have their own wire harness. The auxiliary contact connections...

  • Page 10: Engine-Starting Connections

    Installation Engine-Starting Connections The engine-starting connections are located also described on interconnection diagrams in on the transfer switch contactor. A red decal this book. Connect engine-start signal wires to near the contactor points to engine-start terminals 3 and 4 on the contactor. See Figure terminals.
  • Page 11 asco 3. Separate the contactor control in-line disconnect plugs if you have not already done so. See Figure 2. 4. A permanently-mounted handle provided on 30--150-Amp switches. A detachable manual operator handle is provided on 225--4000-Amp switches. Manual operator handles are to be used for maintenance and inspection purposes only.
  • Page 12 Installation Figure 6. Operating Lever, 600--800-Amp. Figure 7. Operating Lever, For 600--800-Amp Switches: Place the 1000--4000-Amp. operating handle onto the pivot shaft For 1000--4000-Amp Switches: Insert extension as shown in Figure 6. manual handle into hole provided in rotating weight. See Figure 7. 5.

  • Page 13: Voltage Checks

    asco Voltage Checks WARNING 6. Close the normal source circuit breaker. 7. Use an accurate voltmeter to check for proper voltage phase rotation (phase-to-phase and phase-to-neutral voltages) at the contactor’ s normal-source Hazardous voltage. terminals. Can cause severe injury or death. 8.

  • Page 14: Electrical Operation Test

    Installation Electrical Operation Test generator set at the generator set controller. See Figure 9. The generator set 13. Reconnect the contactor control in-line should start after any engine-start time disconnect plugs. See Figure 8. delay set in the transfer switch and/or The transfer switch should be in the generator set controller has completed normal position.
  • Page 15 asco 16. Move the TRANSFER-TO switch to the EMERG. position. The transfer switch TRANSFER SWITCH POSITION should operate to the emergency position with the generator set producing at least 90% of its rated voltage. NORMAL EMERGENCY 17. Reclose the normal-source circuit breaker. SOURCE AVAILABLE 18.

  • Page 16: Switch Position & Source Indicators

    Operation Switch Position & Source Indicators TRANSFER SWITCH POSITION External control switches and indicators are shown in Figure 10. NORMAL EMERGENCY Transfer Switch Position Lamps SOURCE AVAILABLE Normal Lamp (green): Lights to show that the Transfer switch is in the normal position NORMAL EMERGENCY with the normal source available.

  • Page 17: Generator Stop-Start (If Equipped)

    asco Generator Stop-Start (if equipped) DANGER Stop Position: Opens the generator set remote-start circuit, signaling the generator set to shut down, provided that the normal source is available with at least 90% of rated voltage. The generator set will continue to run Hazardous voltage.

  • Page 18: Normal Power Return

    Operation timing before the generator set will crank and and load will be connected to the generator. start. Normal Power Return Engine-start time delays available in the 1. The white normal-source-available lamp transfer switch have possible settings shown will light when normal power returns. in the following table.
  • Page 19 asco Notes Transfer Switch Operation...

  • Page 20: Wiring Diagrams & Drawings

    Wiring Diagrams & Drawings Wiring Diagrams & Drawings Interconnection Diagrams 30--800-Amp,1-phase, 2-wire ADV-5454 Interconnection Diagram 30--800-Amp,1-phase, 3-wire ADV-5455 Interconnection Diagram 30--800-Amp, 3-phase 3 & 4-wire ADV-5456 Interconnection Diagram 1000--4000-Amp, 3-phase, 4-wire ADV-5268 Interconnection Diagram Enclosure Dimensions Enclosure Dimensions 30--150-Amp ADV-5238 sheet 1 Enclosure Dimensions 225--400-Amp ADV-5238 sheet 2...
  • Page 29 1.00 2.00 (25) (51)TYP . 4.00 TYP . (102) 2.25 (57) (16) .406 (10) DIA. HOLES (22) 8 PLACES GROUND BUS 3.00 5.00 (76) (127) ” D” ” E” ” E” DETAIL ” A” 26.13 ” H” 1.37 (664) (35) .40 (10) DIA.
  • Page 30 PIN 9 PIN 8 PIN 9 PIN 8 COIL CKT COIL CKT COIL CKT Load PIN 5 PIN 5 PIN 5 Load Load PIN 2 PIN 2 PIN 2 Emergency Emergency Emergency ACC. 35 PIN 7 PIN 6 ACC. 35 ACC.
  • Page 31 PIN 9 PIN 8 PIN 9 PIN 8 COIL CKT COIL CKT COIL CKT Load PIN 5 PIN 5 PIN 5 Load Load PIN 2 PIN 2 PIN 2 Emergency Emergency Emergency PIN 17 PIN 7 PIN 17 PIN 17 PIN 6 ACC.
  • Page 32 TO LOAD NOT USED ON 2 WIRE SYSTEMS NORMAL EMERGENCY SOURCE SOURCE COIL P1- -15 P3- -3 P1- -16 P3- -4 LEGEND P3- -2 P1- -4 P1- -6 P1- -7 P1- -12 P1- -19 P1- -18 BR - - BRIDGE RECTIFIER P1- -5 C# - - CAPACITOR ER - - EMERGENCY RELAY...
  • Page 33 TO LOAD NORMAL EMERGENCY SOURCE SOURCE COIL 9 NR P3- -3 P1- -16 P1- -15 P3- -4 LEGEND P3- -2 P1- -19 P1- -18 P1- -4 P1- -12 BR - - BRIDGE RECTIFIER P1- -6 P1- -5 P1- -7 C# - - CAPACITOR ER - - EMERGENCY RELAY ET - - EMERGENCY TRANSFORMER D# - - DIODE...
  • Page 34 TO LOAD TO NORMAL TO EMERGENCY SOURCE SOURCE COIL P1- -15 P3- -3 P3- -4 P1- -16 LEGEND P3- -2 P1- -18 P1- -19 P1- -12 P1- -11 BR - - BRIDGE RECTIFIER P1- -5 P1- -17 P1- -7 C# - - CAPACITOR ER - - EMERGENCY RELAY ET - - EMERGENCY TRANSFORMER D# - - DIODE...
  • Page 35 Note : For Contactor Wiring Refer NORMAL EMERGENCY POSITION POSITION To Diagram 294859. LIGHT LIGHT NORMAL EMERGENCY AVAILABLE AVAILABLE LIGHT LIGHT R/BL R/BL NORMAL- -EMERGENCY TRANSFORMER TRANSFORMER SELECTOR SWITCH ET3 ET2 ET1 NT3 NT2 NT2 NT1 MAIN LOGIC BOARD DISCONNECT PLUG Wiring Diagram Nonautomatic Transfer Switch NEMA 1...
  • Page 36 EMERGENCY NORMAL POSITION POSITION For Contactor Wiring LIGHT LIGHT Refer To Diagram 294859 EMERGENCY NORMAL AVAILABLE AVAILABLE LIGHT LIGHT R/BL R/BL R/BL NORMAL-EMERGENCY TRANSFORMER TRANSFORMER SELECTOR SWITCH ET3 ET2 ET1 NT3 NT2 NT1 MAIN LOGIC BOARD Wiring Diagram DISCONNECT PLUG Nonautomatic Transfer Switch NEMA 3R &...
  • Page 37 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 Systems Asia Pacific Headquarters TP-5585 3/92a 7 Jurong Pier Road Singapore 619159 E Kohler Co., 1992. All rights reserved. Phone (65)264-6422, Fax (65)264-6455...

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