A - STANDARD ATS
C - DUAL SOURCEF - NEMA4X DD, STAINLESS STEEL
P - POWER CONTROL CENTRE (PCC)G - NONE (OPEN STYLE)21. ATS CONNECTION CONFIGURATION
S - PEAK PLUSX - SPECIALA - STANDARD
X - SPECIALB - ALTERNATE B (1000-1600A)
13. OPERATION TYPEK - MOLDED CASE SWITCH (100 - 1200 A) D - ALTERNATE D (1000-1600A)
1 - OPEN TRANSITIONM - MOLDED CASE SWITCH C/W THER-MAG E - ALTERNATE E (800-3200A)
2 - MANUAL ELEC. OP.TRIP (100-800A)F - ALTERNATE F (800-3200A)
4 - CLOSED TRANSITION (SOFT LOAD)N - MOLDED CASE SWITCH C/W ELECTRONIC G - ALTERNATE G (800-3200A)
X - SPECIALTRIP (250-1200A)X - SPECIAL
14 . SAFETY STANDARD& GF TRIP (250-1200A) NOTES
X - NOT APPLICABLEQ - INSULATED CASE, FIX MOUNT SWITCH
15 . VOLTAGER - INSULATED CASE, FIX-MOUNT SWITCH
1
3 WIRE
D - 120/240
516
3
3
4 WIRE (GROUNDED NEUTRAL)
F - 127/220(800 - 3200A)
J - 240/415W - INSULATED CASE, DRAW-OUT SWITCH
3
3 WIRE
R - 240K - MOLDED CASE SWITCH (100 - 1200 A)
V - 480N - MOLDED CASE SWITCH C/W ELECTRONIC
X - SPECIALTRIP (250-1200A)
16. CONTROLLER
18. UTILITY SWITCHING DEVICE
P - MOLDED CASE SWITCH C/W ELECTRONIC
(800A-3200A)IS ASA #61 GREY
C/W ELECTRONIC TRIP (800-3200A)
18. UTILITY SWITCHING DEVICE CONTINUED
V - INSULATED CASE DRAW-OUT SWITCH
C/W ELECTRONIC TRIP (800 - 4000A)
X - SPECIAL
M - MOLDED CASE SWITCH C/W THER-MAG
& GF TRIP (250-1200A)
X - SPECIAL
20. POWER CONNECTIONS
A - STANDARD
X - SPECIAL
C - ALTERNATE C (1000-1600A)
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TS 830 TRANSFER SWITCH
5. GENERAL THEORY OF OPERATION
5.1. STANDARD AUTOMATIC TRANSFER SWITCH
5.1.1. NORMAL OPERATION
When utility supply voltage drops below a preset nominal value (adjustable from 70%
to 100% of nominal) on any phase, an engine start delay circuit will be initiated and
the transfer to utility supply signal will be removed (i.e. contact opening). Following
expiry of the engine start delay period (adjustable from 0 to 60 sec.) an engine start
signal (contact closure) will be given.
Once the engine starts, the transfer switch controller will monitor the generator
voltage and frequency levels. Once the generator voltage and frequency rises above
preset values (adjustable from 70% to 95% of nominal), the engine warmup timer will
be initiated. Once the warmup timer expires (adjustable from 0 to 60 sec.), the
Transfer to Generator Supply signal (contact closure) will be given to the transfer
switch mechanism. The load will then transfer from the utility supply to the generator
supply via the motor driven mechanism.
The generator will continue to supply the load until the utility supply has returned.
The retransfer sequence is completed as follows: when the utility supply voltage is
restored to above the preset values (adjustable from 70% to 95% of nominal) on all
phases, a transfer return delay circuit will be initiated. Following expiry of the Utility
Return Timer (adjustable from 0 to 30 min.), the Transfer to Generator Supply signal
will be removed (contact opening), and then the Transfer to Utility Supply signal
(contact closure) will be given to the transfer switch mechanism. The load will then
retransfer the load from the generator supply back to the utility supply. Note: For
transfer switches with TSC 80/800 controllers, a neutral delay timer circuit will delay
the transfer sequence in the neutral position (i.e. both power switching devices open)
until the neutral time delay period expires (adjustable from 0 to 60 sec.).
An engine cooldown timer circuit will be initiated once the load is transferred from the
generator supply. Following expiry of the cooldown delay period (adjustable from 0
to 30 min.), the engine start signal will be removed (contact opening) to initiate
stopping of the generator set. Note: For transfer switches with MEC 2/20, MEC 310
controllers, engine start signal is internal to the controller.
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TS 830 TRANSFER SWITCH
5.1.2. OVER CURRENTTRIP (TSC 80/TSC 800 CONTROLLERS)
Should the utility power switching device trip open due to an over current condition,
TSC 80 or TSC 800 transfer controller will initiate an engine start signal and will
permit transfer of the load to the generator supply. The utility source will be locked
out and the load will remain on the generator supply until the TSC 80/TSC 800 alarm
signal is manually reset.
Refer to the TSC 80 & TSC 800 Instruction Manuals for further details on Transfer
Fail operation.
Should the generator power switching device trip open due to an over current
condition, TSC 80/TSC 800 transfer controller will initiate transfer of the load to the
utility supply. The generator source will be locked out and the load will remain on the
utility supply until the TSC 80/TSC 800 alarm signal is manually reset.
5.1.3. OVER CURRENTTRIP (MEC 2/MEC 20/MEC 310 CONTROLLERS)
Should the utility power switching device trip open due to an overcurrent condition,
the generator will not automatically start and transfer on load. The generator must be
started and transferred on load manually.
Should the generator power switching device trip open due to an overcurrent
condition, the generator will shutdown and the load will automatically return to the
utility supply if its voltage is normal. Note: for automatic transfer to utility, the transfer
switch must be factory ordered with a “gen breaker tripped” auxiliary contact inside
the generator power switching device and must be wired to the gen set controllers
shutdown alarm circuits.
Refer to the Gen Set controller instruction manual for further details on manual
operation or shutdown-reset operation.
5.2. TEST MODES
The transfer switch may be tested utilizing the controller pushbuttons or optional test switch.
A simulated utility power failure condition will be activated when the test mode is selected.
The transfer switch will operate as per a normal utility power fail condition.
The transfer switch will remain on generator supply until the test mode is terminated. It will
then immediately transfer back to the utility supply and then continue to operate the
PM059 REV 6 08/05/05 9 Thomson Technology
TS 830 TRANSFER SWITCH
generator set for its cooldown period then stop. Note: The transfer switch will automatically
return to the utility supply (if within nominal limits) if the generator set fails while in the test
mode.
6. OVER CURRENT PROTECTION
Thomson Technology TS 830 series of Automatic Transfer Switches are supplied standard with
integral over current protection.
The type of over current protection utilized is dependent upon ATS amperage size and optional
features specified. For transfer switches rated 100A through 800A, over current protection is non-
adjustable thermal-magnetic type trip units. For transfer switches rated 1000A through 1600A over
current protection is adjustable electronic type with long time & instantaneous trip unit elements with
optional ground fault protection elements.
Note: For models of transfer switch with adjustable integral over current protection trip units, the
over current protection must be set prior to operation. The equipment will be shipped from the
factory with a long-time current setting of 100% (of the equipment rating) and maximum
instantaneous/short-time/ground fault (if supplied) current and time delay settings.
WARNING!
Do Not Energize this equipment until
device settings have been verified to
ensure proper system protection &
coordination. Failure to do so may result
in equipment failure.
7. GENERAL NOTES ON SERVICING ATS MECHANISM
(See CAUTION! on Page #2)
When performing any service work on the transfer mechanism, it is imperative that the following be
observed:
7.1. To maintain mechanical integrity, ensure that:
• All limit switches linkages are correctly adjusted to provide full travel of the power
switching device toggles without exerting unnecessary forces associated with
excessive travel. Ensure that power switching device travel far enough to reset
any internal trip unit (it is more important for the toggle to go fully in the "off"
direction, than in the "on" direction).
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TS 830 TRANSFER SWITCH
• Mechanical interlocking is correct when one power switching opens well before
the other should close.
• All fasteners are adequately tightened.
• The operating linkages are not damaged or bent, and that all bearing points
operate freely.
7.2. To maintain electrical integrity, ensure that:
• All electrical connections, especially power connections, are clean and
adequately tightened. Corroded or loose power connections will cause
destructive heating, and may cause premature tripping.
• All insulating devices are in place and in good condition.
• No moisture or other contamination is present.
• Electrical conductors are adequately secured away from moving parts.
• On HS style transfer switch mechanisms, check nylock nuts on bolt pivot points.
Operation arms should move freely without excessive play.
7.3. To maintain operational integrity, ensure that:
• All control devices are in good condition and correctly calibrated.
• All control devices are adequately secured in their plug-in fixtures.
Only qualified personnel should undertake service work. Failure to correctly maintain an
automatic transfer switch may present a hazard to life and equipment. Full operational
testing must be done prior to placing a transfer switch in service subsequent to any
maintenance or repair. Any service work involving electrical components requires high-
potential testing to ensure that required insulation levels have been maintained.
- TSC 80/800 Controller has “Transfer Fail” alarm activated as
indicated by flashing Load on Utility LED. Determine cause of
alarm and rectify before TSC is reset
- Isolation plug out
- Generator set not producing enough voltage/frequency or
output circuit breakeropen
- Controller has incorrect voltage programming jumper setting for
correct system voltage
- Warm-up time delay function has not timed out yet (verify
controller timer setting)
- A loose control connection
Transfer to generator source without a
power failure in the utility source
- TSC 80/800-Utility power switching devicehas tripped due to
an over current condition and controller alarm activated as
indicated by flashing Load on Utility LED. Determine cause of
alarm and rectify before controller is reset.
- Verify remote engine control panel is set for automatic mode
- Verify time delay setting of the controller
- The power switching device's over current protection unit has
opened due to a fault on the system. ”. Correct the fault, and
manually reset the power switching devicein the transfer
switch by moving it off and then on again with the manual
operating handle
-
The transfer switch has completed a
transfer, but the motor has overheated
and the internal thermal protector has
opened
Limit switch failure or improper adjustment has failed to
disconnect motor
Binding or jamming of the transfer mechanism
-
19. REPLACEMENT PARTS
Replacement parts are available for the transfer switch as follows:
Note
When ordering replacement parts please provide the
following information:
-Transfer Switch Model code (e.g. TS 873AA0200AS)
-Transfer Switch Serial Number (e.g. W-022345)
The above information can be found on the transfer
switch equipment rating plate located on the outside of
the ATS door.
PM059 REV 6 08/05/05 22 Thomson Technology
TS 830 TRANSFER SWITCH
Component Description
MEC 310 Controller MEC310AXX1 Must configure program settings to
TSC 80 Controller Board 005712 Must set Program Jumper prior to