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5.
OVER CURRENT PROTECTION
Thomson Power Systems 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 125A 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.
6.
GENERAL NOTES ON SERVICING ATS MECHANISM
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical
personnel utilizing safe work practices and appropriate Personal Protective
Equipment (PPE). Failure to do so may cause personal injury or death
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:
PM059 REV 9 14/01/16
TS 830 TRANSFER SWITCH
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.
DANGER!!!!
10
Thomson Power Systems
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