Kohler Engine Generator Power Systems

Introduction to Kohler Engine Generator Systems

The five major components of the Kohler engine generator system, the three transfer-switch models, and how open and closed transitions move the load between sources.

Manuals: ASCO 434 Operator's Manual · ASCO 962 Operator's Manual

ASCO Handle Operation

The ASCO bypass and isolation handles, the door-panel test controls and Load Connected lights, how bypass, Test, and Open take the ATS out of the load path, and the SL1/SL2 interlocks.

Manuals: ASCO 962 Operator's Manual · ASCO 434 Operator's Manual · Supplemental Manual

ASCO 962 Schematic

The SE, ER, and NR relays, the transfer-switch operating coil, and the transfer to Emergency and return to Normal sequences.

Manuals: ASCO 962 Operator's Manual · Supplemental Manual · Student Schematic Diagrams

ASCO 434 Schematic

The ASCO 434 open transfer on Commercial failure, closed-transition return to Normal, and closed Transfer Test, shown on the course schematic.

Manuals: ASCO 434 Operator's Manual · Supplemental Manual · Student Schematic Diagrams

ASCO 434 Extended Parallel & Failure to Synchronize

How the ASCO 434 detects and clears an extended-parallel condition, trips a backup breaker, locks out, and annunciates a failure to synchronize.

Manuals: ASCO 434 Operator's Manual · Supplemental Manual · Student Schematic Diagrams

Kohler M340 Schematic

The M340 relays and their ASCO 962 equivalents, sensing and controller power, and the transfer to Emergency, return to Normal, and load-test sequences.

Manuals: Student Schematic Diagrams · Kohler TP-5604 · Supplemental Manual

Kohler M340 Controller

The M340 front panel, time delays, programming modes, door controls, rear relays and transformers, shunt-controlled accessories, and Transfer Hang troubleshooting.

Manuals: Kohler TP-5604 · Kohler TP-5569 · Student Schematic Diagrams

Kohler M340 Programming

Navigating the M340 indexes in OFF mode, and setting records, clock, time delays, source trip points, and calibration in LOCAL mode.

Manuals: Kohler TP-5569 · FAA Order JO 6980.11F

Kohler FR Generators

The Fast Response alternator: nameplates, excitation, regulator and optical coupling, troubleshooting, housing protection, and the electronic governor.

Manuals: Kohler TP-5706 · Kohler TP-5353 · Student Schematic Diagrams

DEC 3+ Controller

The DEC 3+ controller: meters and controls, indicators and Auxiliary Fault, the speed sensor, board, fuses and relays, and the FAA cooldown requirement.

Manuals: Kohler TP-5706 · Kohler TP-5353 · FAA Order JO 6980.11F · Supplemental Manual

DEC 340 Controller

The DEC 340: local controls, keypad and annunciator, speed sensor, controller boards, the main-board K1, K2, and K3 crank and run relays, and where the FAA settings live.

Manuals: Kohler TP-5706 · Student Schematic Diagrams · FAA Order JO 6980.11F

Kohler Engine Schematics

Battery, crank, and run power from the DEC 340 and DEC 3+ controllers through the Ford, John Deere, and Detroit Diesel engine drawings and the AVR.

Manuals: Student Schematic Diagrams · Kohler TP-5706 · Kohler TP-5353

Avtron Load Banks

Manual, radiator-mounted automatic, and remote automatic load banks, read from the Avtron schematics with the ASCO 962 and ASCO 434 operator manuals as references.

Alternate Fuel Systems

Propane and natural gas fuel systems — pressures, configurations, and pipe sizing — with step-by-step walkthroughs of the Figure C-1 and C-5 schematics.