Owner's Manual 600 and 800 Amp RTS Automatic Transfer Switch
Safety Rules THESE INSTRUCTIONS! Read the following information carefully before attempting to install, operate or service this equipment. Also read the instructions and information on tags, decals, and SAVE labels that may be affixed to the transfer switch. Replace any decal or label that is no longer legible.
Table of Contents • If work must be done on this equipment while standing on metal or concrete, place insulative mats over a dry wood platform. Work on this equipment only while standing on such insulative mats. • Never work on this equipment while physically or mentally fatigued. • Keep the transfer switch enclosure door closed and bolted at all times. Only qualified personnel should be permitted access to the switch interior.
General Information 1.1 INTRODUCTION This manual has been prepared especially for the purpose of familiarizing personnel with the design, application, installation, operation and servicing of the applicable equipment. Read the manual carefully and comply with all instructions. This will help to prevent accidents or damage to equipment that might otherwise be caused by carelessness, incorrect application, or improper procedures.
Installation 2.1 INTRODUCTION TO INSTALLATION This equipment has been wired and tested at the factory. Installing the switch includes the following procedures: • • • • • • Mounting the enclosure. Connecting utility and generator power source leads. Connecting the load leads. Connecting any auxiliary contact (if needed) Installing/connecting any options and accessories. Testing functions. 2.2 2.4.1 3-POLE MECHANISM These switches (Figure 2.
Operation Figure 2.2 – Auxiliary Contacts Proper conductor tightening torque values are on the decal inside the enclosure door. Connect power source load conductors to clearly marked transfer mechanism terminal lugs as follows 1. Connect UTILITY (NORMAL) power source cables to switch terminals N1, N2, (N3). 2. Connect EMERGENCY (STANDBY) source power cables to transfer switch terminals E1, E2, (E3). 3. Connect customer LOAD leads to switch terminals T1, T2, (T3). 4.
Operation 3.2 MANUAL OPERATION NOT manually transfer under load. Disconnect transfer switch from all power Do sources by approved means, such as a main circuit breaker(s). A manual HANDLE is shipped with the transfer switch. Manual operation must be checked BEFORE the transfer switch is operated electrically. To check manual operation, proceed as follows (Figure 3.1): 3.2.1 TRIP TO NEUTRAL POSITION Remove handle from the square lug at the upper left corner of the switch.
Operation 3.2.2 CLOSE TO EMERGENCY SOURCE SIDE Before proceeding, verify the position of the switch by observing window “A” and window “B”. If window “B” displays ON the ATS is closed in the STANDBY position, with the LOAD connected to the STANDBY source. It is not necessary to manually close in the STANDBY position. See Figure 3.3. With handle attached to the actuating shaft. Move manual handle upward as indicated by arrow in illustration until it stops. DO NOT FORCE.
Operation 3. 4. Three-phase only. Locate the 3 phase power monitor relay. Verify the following: LED Green and ON (For an explanation of all of the LED functions, see the decal on the side of the power monitor.) The factory setting is 80% of nominal voltage (208 Vac systems = 166 Vac dropout) If the LED indicator is Red or not ON, then it will be necessary to adjust the power monitor relay setting. Rotate the adjustment potentiometer in a counter-clockwise direction until the LED turns ON.
Operation 3.4 1. 2. 3. 4. 5. 6. 7. 8. 9. 8 GENERATOR TESTS UNDER LOAD Set the generator's main circuit breaker to its OFF or OPEN position. Manually actuate the transfer switch main contacts to their emergency (Standby) position. Refer to “Manual Operation”. To start the generator, set the AUTO/OFF/MANUAL switch to MANUAL. When engine starts, let it stabilize for a few minutes. Turn the generator's main circuit breaker to the ON or CLOSED position. The generator now powers all LOAD circuits.
E1 E2(E3) ON GROUND 3 PHASE E2 NEUTRAL BLOCK E1 S-B7973H0 T-DTU-T7S00912 XD 40 M 0A9457X 0F7808-T M8X35 PEM STUD 0F7808-T M8X35 PEM STUD 67210X NEUTRAL BLOCK T-DT UT7 S0 09 12 X7D 4 M T 6 0 8 F0 0 Z I H W 4 M T-DT UT7 S0 09 12 X7D 4 M T 6 0 8 F0 0 Z I H W 4 M A7822-T 600MCM A7822-T 600MCM 0D6584-T 0F7808-T M8X35 PEM STUD 0F7808-T M8X35 PEM STUD A7822-T 600MCM T-DT UT7 S0 09 12 X7D 4 M T 6 0 8 F0 0 Z I H W 4 M GROUND CUSTOMER CONTROL WIRING SUPPORT 25 DM 0 DS UT5 S0 29 1X 25 DM 0 DS
Installation Diagram 10 Drawing No.
Drawing No.
Notes 12
Notes 13
Part No. 0J0917 Revision C (08/06/13) Printed in U.S.A.
