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IB140042EN
Instructional Booklet
Page
6
Effective: May 2015
ATC-300/ 900 Breaker Based Transfer Switch
1.5 Glossary
With respect to their use within this document and as they
relate to transfer switch and controller operation, the follow-
ing terminology is defined.
Available
A source is defined as “available” when it is within its under-
voltage/overvoltage/ underfrequency/overfrequency (if appli-
cable) setpoint ranges for the nominal voltage and frequency
setting.
Connected
Connected is defined as when the input is shorted by an
external contact or connection.
Failed or Fails
A source is defined as “failed” when it is outside of the appli-
cable voltage and frequency setpoint ranges for the nominal
voltage and frequency setting for a time exceeding 0.5 sec-
onds after the time delay emergency fail (TDEF) time delays
expires.
Failsafe
Failsafe is a feature that prevents disconnection from the only
available power source and also forces a transfer or re-trans-
fer operation to the only available power source.
Re-Transfer
Re-transfer is defined as a change of the load connection
from the Source 2 to the Source 1.
Source 1
Source 1 is the primary source (normal source, normal power
source, or normal).
Source 2
Source 2 is the secondary source (emergency source, emer-
gency power source, emergency, standby, or backup source).
Source 1: Failed or Fails
Source 1 is defined as “failed” when it is outside of its under-
voltage/overvoltage/ underfrequency/overfrequency (if appli-
cable) setpoint ranges for the nominal voltage and frequency
setting.
Source 2: Failed or Fails
Source 2 is defined as “failed” when it is outside of its under-
voltage/overvoltage/ underfrequency/overfrequency (if appli-
cable) setpoint ranges for the nominal voltage and frequency
setting for a time exceeding 0.5 seconds after the Time Delay
Emergency Fail (TDEF) time delay expires.
Transfer
Transfer is defined as a change of the load connection from
the Source 1 to the Source 2 power source, except when
specifically used as “Transfer to Neutral”.
Transfer to Neutral
Transfer to Neutral is defined as when the load circuits are
disconnect from both the Source 1 and Source 2 power
sources.
Unconnected
Unconnected is defined as when the input is not shorted by
an external contact or connection.
Section 2: Receiving, Handling, and
Storage
2.1 Receiving
Every effort is made to ensure that the ATS equipment
arrives at its destination undamaged and ready for installa-
tion. Packing is designed to protect internal components as
well as the enclosure. Care should be exercised, however, to
protect the equipment from impact at all times. Do not
remove the protective packaging until the equipment is ready
for installation.
When the ATS equipment reaches its destination, the cus-
tomer should inspect the shipping container for any obvious
signs of rough handling and/or external damage that occurred
during transportation. Record any external and internal dam-
age for reporting to the transportation carrier and Eaton, once
a thorough inspection is complete. All claims should be as
specific as possible and include the Shop Order and General
Order numbers.
A shipping label affixed to the shipping container includes a
variety of equipment and customer information, such as Gen-
eral Order Number and Customer Number. Make certain that
this information matches other shipping paper information.
Each transfer switch enclosure is bolted through its top and
bottom mounting flanges to a rigid wooden pallet. The pallet
is open at two ends for movement by a forklift. Heavy-duty
cardboard sides surround the enclosure and are further sup-
ported with reinforced cardboard corner posts. An egg crate
design cardboard protector covers the entire top of the enclo-
sure with additional cardboard protectors over the indicating
light panel and operating handle. A heavy-duty cardboard lid
covers the entire opening. The shipment is secured and fur-
ther protected with shrink-wrap. Do not remove or discard
the packing material until the equipment is ready for installa-
tion.
Once the top packaging is removed from the shipment, the
enclosure door can be opened. A plastic bag of documents
will be found in the enclosure, usually attached to the inside
of the door. Important documents, such as test reports, wir-
ing diagrams, and appropriate instruction leaflets, are
enclosed within the bag and should be filed in a safe place.
2.2 Handling
As previously mentioned, ATS equipment is packaged for
forklift movement. Protect the equipment from impact at all
times and DO NOT double stack.
Once the equipment is at the installation location and ready
to be installed, packaging material can be removed and dis-
carded. Once the enclosure is unbolted from the wooden pal-
let, it can be hand moved to its installation position. Be
careful not to damage the top or bottom enclosure mounting
flanges. Refer to Section 4 of this manual for specific instal-
lation instructions.