Eaton Digitrip RMS 510 LI, Инструкция по эксплуатации

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The Digitrip RMS 5 10 Trip Unit is completely self-con­
tained and when the circuit breaker is closed, requires no
external control power to operate its
protection sys­
tems. It operates from current signal levels and control
power derived through current sensors integrally
mounted in the circuit breaker.
The Digitrip RMS 5 10 Trip Unit is available in six different
types. Each trip unit may be equipped with a maximum of
five phase and two ground (time-current) adjustments to
meet specific application requirements. The types of pro­
tection available for each model include the following,
which are illustrated in Figures
2.1 through 2.6:
Protection
Long Time/Instantaneous
Long Time/Short Time
Long Time/Short Timellnstantaneous
Long Time/I nstantaneous/Ground
Long Time/Short Time/Ground
Long Time/Short Time/Instantaneous/
Ground
Types
LI*
LS*
LSI*
LlG
LSG
LSIG
Refer to
Figure
2.1
2.2
2.3
2.4
2.5
2.6
I.L. 29-8858
Note*: RMS Digitrip Type LI, LS, and LSI trip units
can be applied on 3-pole or 4-pole circuit breakers
for protection of the neutral circuit,
IF the circuit
breaker is wired and MARKED for NEUTRAL PRO­
TECTION.
Refer to the National Electric Code for
appropriate application of 4-pole breakers.
1 .2 Information
Light Emitting Diodes (LED's) on the face of the trip unit
light "Red" to indicate the reason for an automatic trip
operation. The battery in the rating plug maintains the
reason for trip indication following an automatic trip oper­
ation, until the "TRIP RESET" button is pushed.
The "Green" LED in the lower right corner "blinks" to indi­
cate the trip unit is operating normally. The battery in the
rating plug is "OK" if the LED lights "Green" when the
"battery check" button next to it is pushed. (See
Section
6.).
Note: The Digitrip RMS 51 0 provides all of its protec­
tion functions regardless of the status of the battery.
The battery serves only to maintain the indication of
the reason for automatic trip.
Fig. 1 Digitrip RMS 510 Trip Unit Model LS/G with Rating Plug
• !Y·N
Effective May 1997
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