Cutler-Hammer Digitrip RMS 510 Instructions Manual

Cutler-Hammer
Instructions for Digitrip RMS 510 Trip U n it
Table of Contents
General Description . . . . . . . . . . . . . . . . . . . . . 1
1 .0
1 . 1 P rotection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
I nformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1 .2
Testing . . . . . . . . . . . . . . . . . . .
1 .3
.
U L Listed Devices . . . . . . . . . . . . . . . . . . . .
2.0
3.0 P rinciple of Operation . . . . . . . . . . . . . . . . . .
3 . 1 General . . . . . . . . . . . . . . . . . .
3.2 Trip and Operation Indicators . . . . . . . . . . . . . . 5
3.3 Test P rovisions . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.4 DIScriminator (Making Current Release) . . . . . 5
3.5 OVE R R I D E (Fixed I nstantaneous) . . . . . . . . . . 6
3.6 Zone I nterlocking . . . .
4.0 Protection Settings . . . . . . . . . . . . . . . . . . . . . . 6
4 . 1 General . . . . . .
. .
4.2 Long Delay Current Settings . . . . . . . . . .
4.3 Long Delay Time Settings . . . . . . . . . . . . . . . . . 7
Short Delay Current Settings . . .
4.4
Short Delay Time Settings . . . . . . . . . . . . . . .
4.5
4.6 I nstantaneous Cu rrent Settings . . . . . . . . . . . . . 8
4.7 NO I nstantaneous Cu rrent Settings . . . . . . . . . 8
G round Fault Current Settings . . . . . . . . . . . . . 8
4.8
4.9 G ro u nd Fault Time Delay Settings . . . . . . . . . . 9
5.0 Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . 1 0
5 . 1 General . . . . . . . . .
5.2 When To Test . . . . . . . . . . . . . . . . . . . . . .
5.3 Test P rovision . . . . . . . .
5. 4 Conducting Tests . . . . . . . . . . . . . . . . . . . . .
5.4. 1 Control Power . . . . . . . . . . . . .
5.4.2 Not Tripping the Breaker . . . . . . . . . . . . . .
5.4.3 Tripping the Breaker . . . . . . . . . . . . . . . . . . . . 1 2
Battery (Inside the Rating Plug) . . . . .
6.0
6 . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2
6.2 Battery Check . . . . . . . . . . . . . . . . . . . . . . . . 1 2
.
Battery Replacement . . . . . . . . . . . . . . . . . . . 1 2
6.3
7.0 Auxiliary Power Module . . . .
Frame Ratings, (where applicable,
8.0
Sensor Ratings) and Rating Plugs . . . . . . . . 1 4
9.0 References . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
Digitrip RMS Trip Assemblies . . . . . . . . . . . . . 1 5
9 . 1
Type DS Low Voltage AC Power Circuit
9. 2
Breakers . . . . . . .
.
9.3 Type SPB Systems Pow-R Breakers . . . . . . . . 1 5
®
Series C% R-Frame Molded Case Circuit
9.4
Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
Appendix A Zone I nterlocking - Example . . . . . . . . . . . 1 5
Effective May 1 997, Supersedes I.L. 29·BB5A dated September 1 994
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A
DO NOT ATTEMPT TO INSTALL OR PERFORM MAIN­
TENANCE ON EQUIPMENT WHILE IT IS ENERGIZED.
. . 4
DEATH OR SEVERE PERSONAL INJURY CAN
. 4
RESULT FROM CONTACT WITH E N ERGIZED EQUIP­
.
. 4
MENT. ALWAYS VERIFY THAT N O VOLTAGE IS
.
PRESENT BEFORE PROCEEDING WITH THE TASK,
AND ALWAYS FOLLOW GENERALLY ACCEPTED
SAFETY PROCEDURES. CUTLER-HAMMER IS NOT
LIABLE FOR THE MISAPPLICATION OR MISINSTAL­
LATION OF ITS PRODUCTS.
It is strongly urged that the user observe all recommen­
dations, warnings and cautions relating to the safety of
personnel and equipment, as well as general and local
health and safety laws, codes, and procedures.
The recommendations and information contained herein
8
.
are based on experience and judgment, but should not
be considered to be all-inclusive or covering every appli­
cation or circumstance which may arise. If you have any
questions or need further information or instructions,
please contact your local representative, or the Customer
Support Center for the type of circuit breaker you have:
Circuit
Breaker
. 1 1 Type
DS/DSL
SPB c ®
Series R-Frame
1 .0 GENERAL DESCRIPTION
1 .1 Protection
The Digitrip RMS 51 0, illustrated in Fig . 1 , is a custom
application specific integrated circuit based trip unit suit­
able for use in types DS and DSL low voltage AC power
circuit breakers and type SPB Systems Pow-R circuit
breakers and Series
breakers.
The Digitrip RMS 51 0 provides true RMS current sensing
for proper correlation with thermal characteristics of con­
ductors and equipment. Interchangeable rating plugs are
provided to establish the continuous cu rrent rating of
each circuit breaker.
I . L. 29-8858
WAR N I N G
Call Send to
Telephone FAX
N umber Number
( 41 2) 937-6029 (41 2) 937-6396
(412) 937-6029 (412) 937-6396
(41 2) 937-6490 (41 2) 937-601 0
R-Frame molded case circuit
c®