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Westinghouse 

D1gital 

Protection 

D1gitr1p RMS 

500 

Cell No. 

---

NP256P655HOI 

Made 

U S.A 

'/, N Lithium Battery Only 

Long Delay  Long Delay 

Settmg 

Time 

[!]In 

[DSec 

· 

At 61n 

Short 

Delay 

P1ckup 

Breaker Trips 

,

0

1n 

In 6T 

Test Amps 

I

Short Delay 

Time 

� 

12t 

OJ 

Sec. 

Test 

Tr1p 

[!)In  Reset 

�tn��us 

� 

lnst 

NP256P656H21 

Fig.  2.3 

Long  Time/Short  Time/Instantaneous  Protection  (LSI) 

Nameplate 

Westinghouse 

D1g1tal 

Protection 

Dig1trip RMS 

500 

Cell No 

Long Delay 

Setting 

[!]In 

Gnd. 

Fault 

Pickup 

0 1n 

NP256P655H01 

Made 

1n 

U.S.A 

Y3 

N lithium Battery Only 

Long Delay 

T1me 

(DSec.� 

At 61n 

Short 

Delay 

P1ckup 

Breaker Tr1ps 

,0 1n 

In 6T 

Test Amps 

'@ 

In 

Short Delay 

Time 

*  � 

12t 

;�;''"" 

QJ 

Sec 

OJ 

Sec 

Gnd. 

Overnde/D1scnmmator 

Test 

Trip 

Reset 

�tn�!us 

� 

NP256P656H31 

Fig.  2.5 

Long  Time/Short  Time  Protection  (LSG)  Nameplate 

Westinghouse 

Digital 

Protection 

D1g1tr1p RMS 

500 

NP256P655HOI 

Made 

1n 

U.S.A 

N L1th1um Battery Only 

Long Delay  Long Delay 

Setting 

Time 

OJ 

In 

[DSec-

At 61n 

Gnd. 

Fault 

Pickup 

0

1

Gnd. Fault 

Breaker Trips 

In 6T 

Test Amps 

0 1n 

Time 

[!)In 

Test 

Trip 

Reset 

Gnd. 

lnst 

NP256P656H51 

Fig.  2.4 

Long  Time/Instantaneous/Ground Protection  (LIG) 

Nameplate 

Westmghouse 

Digital 

ProtectiOn 

Dig1tr1p RMS 

500 

Cell No. 

Made 

U S.A 

y, 

N Lithium Battery Only 

long Delay 

Sett1ng 

OJ 

In 

Gnd. Fault 

Pickup 

0 1n 

Long Delay 

Time 

(TISec.-

At 61n 

Short 

Delay 

P1ckup 

Breaker Trips 

,

0

1n 

In 6T 

Test Amps 

In 

Short Delay 

Time 

*  � 

12t 

OJ 

Sec 

Test 

\  \ 

Gnd. Fault 

Tnp 

® 

Sec. 

[TI In 

Reset 

��:us 

® 

Gnd. 

lnst 

NP256P656H41 

Fig.  2.6 

Long  Time/Short  Time/Instantaneous/Ground 

Protection  (LSIG) Nameplate 

www 

. ElectricalPartManuals 

. com 

Содержание Digitrip RMS 500

Страница 1: ...act Westinghouse Electric Corporation for further infor mation or instructions 1 0 General Description 1 1 Protection The Digitrip RMS 5 00Trip Unit illustrated in Fig 1 is a micro processor based typ...

Страница 2: ...ade m U S A VJ N Lithium Battery Only Long Delay Long Delay Setting Time In IT Sec At 61n 0 0 Breaker Trips In 6 T Test Amps IIJ in 0 Test 0 b Trip o IT In Reset 0 t n us lnst NP156P656H01 Fig 2 1 Lon...

Страница 3: ...P656H31 Fig 2 5 Long Time Short Time Protection LSG Nameplate Westinghouse Digital Protection D1g1tr1p RMS 500 CeliNa ___ 1NP256P655HOI Made 1n U S A II N L1th1um Battery Only Long Delay LongDelay Set...

Страница 4: ...e pre set protection function pick up settings and other operating data stored in the ROM or Read Only Memory The microcomputer software program is then used in decision tree fashion to initiate prote...

Страница 5: ...with an adjustable instantaneous setting i e types LS or LSG a high set non adjustable instantaneous override trip circuit is provided This high level tripping action is pre set to a specific value t...

Страница 6: ...er in which the trip unit is installed Specific information on these settings is given in the supplemental instruction leaflet referenced in Sec tions 9 1 and 9 2 that is supplied with the circuit bre...

Страница 7: ...me _____ I I I I I r Q Sec S 1 1 I I I u M I 1 1 I I I _ j 1 1 f l I I _ Available Settings 0 1 0 2 0 3 0 4 0 5 Seconds with Flat Response I I I m 1 j 1 1 I I w 3 0 1 0 3 0 5 Seconds with l t Response...

Страница 8: ...t all in service testing under Trip or No Trip conditions must be done at load current values no greater than 40 of the plug rating In Any attempt to conduct in service testing above this value will b...

Страница 9: ...g 6 2 View with Hinged Cover Open and Battery Installed Fig 6 Typical Rating Plug 9 Should an actual overload or fault condition occur during an in service No Trip Test sequence the protection functio...

Страница 10: ...INSURE THAT THE CORRECT POLAR ITIES ARE OBSERVED POLARITY MARKINGS ARE SHOWN ON THE RATING PLUG WHEN THE HINGED COVER IS OPEN AS INDICATED IN FIGS 6 2 AND 6 3 7 0 Auxiliary Power Module The Auxiliary...

Страница 11: ...ype SPB Systems Pow R Breaker Typical Time Current Characteristic Curve LS for Type SPB Systems Pow R Breaker Typical Time Current Characteristic Curve G for Type SPB Systems Pow R Breaker SPB Master...

Страница 12: ...Westinghouse Electric Corporation Distribution and Control Busi ness Unit Electrical Components Division Pittsburgh PA 1 5220 Style No 661 5C96H01 w w w E l e c t r i c a l P a r t M a n u a l s c o...

Страница 13: ...ntact Westinghouse Electric Corporation for further infor mation or instructions 1 0 General Description 1 1 Protection The Digitrip RMS 500 Trip Unit illustrated in Fig 1 is a micro processor based t...

Страница 14: ...0 l Cell No NP156P655H01 Made tn U S A y N Lith1um Battery Only Long Delay Long Delay Setting Time QJ In IT sec At 61n 0 0 Breaker Trips In 6T Test Amps ill In 0 Test 0 Trip 0 I In Reset 0 us lnst NP1...

Страница 15: ...Amps 0 In 0 Test 0 Tnp 0 Reset Unit Status NP156P656H31 Fig 2 5 Long Time Short Time Protection LSG Nameplate Westinghouse D1g1tal Protection Digitnp RMS 500 Cell No Gnd Fault Pickup In 0 long Delay...

Страница 16: ...dly compared with the pre set protection function pick up settings and other operating data stored in the ROM or Read Only Memory The microcomputer software program is then used in decision tree fashi...

Страница 17: ...not equipped with an adjustable instantaneous setting i e types LS or LSG a high set non adjustable instantaneous override trip circuit is provided This high level tripping action is pre set to a spec...

Страница 18: ...the trip unit is installed Specific information on these settings is given in the supplemental instruction leaflet referenced in Sec tions 9 1 and 9 2 that is supplied with the circuit breaker Spe ci...

Страница 19: ...I I Short Delay Time I 1 I I I Sec 0 1 1 I I I u I 1 1 I I I 1 1 1 In Viewing Window Indicates l t Type Response I I l J I I w Fig 4 4 Short Delay Time Settings r 1 I I I I lnst I I In i_ J 0 Availabl...

Страница 20: ...e trip unit all in service testing under Trip or No Trip conditions must be done at load current values no greater than 40 of the plug rating In Any attempt to conduct in service testing above this va...

Страница 21: ...Fig 6 2 View with Hinged Cover Open and Battery Installed Fig 6 Typical Rating Plug 9 Should an actual overload or fault condition occur during an in service No Trip Test sequence the protection func...

Страница 22: ...O INSURE THAT THE CORRECT POLAR ITIES ARE OBSERVED POLARITY MARKINGS ARE SHOWN ON THE RATING PLUG WHEN THE HINGED COVER IS OPEN AS INDICATED IN FIGS 6 2 AND 6 3 7 0 Auxiliary Power Module The Auxiliar...

Страница 23: ...pe SPB Systems Pow R Breaker Typical Time Current Characteristic Curve LS for Type SPB Systems Pow R Breaker Typical Time Current Characteristic Curve G for Type SPB Systems Pow R Breaker SPB Master C...

Страница 24: ...2 Westinghouse Electric Corporation Distribution and Control Business Unit Electrical Components Division Pittsburgh PA 1 5220 Style No 661 5C96H01 w w w E l e c t r i c a l P a r t M a n u a l s c o...

Страница 25: ...ntact Westinghouse Electric Corporation for further infor mation or instructions 1 0 General Description 1 1 Protection The Digitrip RMS 500 Trip Unit illustrated in Fig 1 is a micro processor based t...

Страница 26: ...No I NP256P655H01 Made in U S A lj3 N Lithium Battery Only Long Delay Long Delay Setting T1me ITJ in I Sec At 61n 0 0 Breaker Trips In 6T Test Amps In 0 Test 0 0 Trtp 0 I In Reset 0 us lnst NP256P656H...

Страница 27: ...lay Time 0 Sec 0 b Ovemde D1scnmlnator Test 0 Trip o Reset NP256P656H31 Fig 2 5 Long Time Short Time Protection LSG Nameplate Westinghouse D1gital Protection Digitnp RMS 500 Cell No r NP256P655H01 Mad...

Страница 28: ...hich the trip unit is installed Specific information on these settings is given in the supplemental instruction leaflet referenced in Sec tions 9 1 and 9 2 that is supplied with the circuit breaker Sp...

Страница 29: ...I I I I I Sec 0 I I I I I u _ M I I t 1 I I I 1 t 1 I I Available Settings 0 1 0 2 0 3 0 4 0 5 Seconds with Flat Response r j I I ill 1 J 1 1 I I w 3 0 1 0 3 0 5 Seconds with l t Response l t Respons...

Страница 30: ...unit all in service testing under Trip or No Trip conditions must be done at load current values no greater than 40 of the plug rating Onl Any attempt to conduct in service testing above this value wi...

Страница 31: ...6 2 View with Hinged Cover Open and Battery Installed Fig 6 Typical Rating Plug 9 Should an actual overload or fau lt condition occur during an in service No Trip Test sequence the protection function...

Страница 32: ...O INSURE THAT THE CORRECT POLAR ITIES ARE OBSERVED POLARITY MARKINGS ARE SHOWN ON THE RATING PLUG WHEN THE HINGED COVER IS OPEN AS INDICATED IN FIGS 6 2 AND 6 3 7 0 Auxiliary Power Module The Auxiliar...

Страница 33: ...pe SPB Systems Pow R Breaker Typical Time Current Characteristic Curve LS for Type SPB Systems Pow R Breaker Typical Time Current Characteristic Curve G for Type SPB Systems Pow R Breaker SPB Master C...

Страница 34: ...2 Westinghouse Electric Corporation Distribution and Control Business Unit Electrical Components Division Pittsburgh PA 1 5220 Style No 661 5C96H01 w w w E l e c t r i c a l P a r t M a n u a l s c o...

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