I.B. 17555C
Effective November 1999
Page B1
Appendix B
Table of Contents
Page
1.0
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1
2.0
General Description . . . . . . . . . . . . . . . . . . . . . . B1
3.0
Functional Description . . . . . . . . . . . . . . . . . . . . B4
4.0
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B4
5.0
Wiring and Setup . . . . . . . . . . . . . . . . . . . . . . . . B6
6.0
Application Considerations . . . . . . . . . . . . . . . . B6
7.0
Testing the Dual-Source Power Supply . . . . . . B11
8.0
Warranty and Liability . . . . . . . . . . . . . . . . . . . B13
9.0
Technical Assistance . . . . . . . . . . . . . . . . . . . . B13
1.0
INTRODUCTION
This appendix describes the Dual-Source Power Supply
(DSPS) addition to the Digitrip 3000 Protective Relay.
Table 1 lists the DSPS–equipped DT3000 versions.
2.0
GENERAL DESCRIPTION
The Digitrip 3000 with Dual-Source Power Supply
(DSPS) is a microprocessor-based feeder overcurrent
protective relay designed for ac auxiliary power applica-
tions. The DSPS versions, DT3010 and DT3020, include
an integral power supply module which:
• Powers the relay from nominal 120 Vac, 50/60Hz
(DT3010 model) or 240 Vac, 50/60Hz (DT3020 model)
auxiliary power, which is normally connected and avail-
able.
• Operates solely from the main current transformers
(cts) during a fault if the normally connected auxiliary
ac voltage is not available, like an electromechanical
relay or an electronic “self-powered” relay.
The ct powering capability is critical for tripping if the ac
auxiliary supply or its fuses fail prior to the fault; or if the
fault itself collapses the supply voltage at the critical
moment when tripping is needed.
The DT3000 with Dual-Source Power Supply design
offers significant performance and reliability benefits over
the electromechanical or “self-powered” relays. It pro-
vides a full-time metering display, remote communica-
tions, and self-monitoring functions. In addition, there is
no calibration required. The burden is lower than most
electromechanical and solid state self-powered relays.
The DT3000 with DSPS provides long-term, robust,
maintenance-free performance, which can’t be achieved
with an energy-storing uninterruptible power supply
(UPS). The DSPS will operate anytime there is a fault
even after an extended power outage.
CAUTION
TO BE EFFECTIVE, THE DIGITRIP 3000 WITH DSPS
MUST BE USED WITH A BREAKER HAVING CAPACI-
TOR TRIP OR OTHER STORED-ENERGY TRIP
MECHANISM THAT CAN OPERATE WHEN THE AC
SUPPLY HAS FAILED.
TABLE B-1 ORDERING INFORMATION
Description
Cat. No.
Style No.
Digitrip 3000 with 120Vac Dual-
Source Power Supply
DT3010
4D13125G11
Digitrip 3000 with 240Vac Dual-
Source Power Supply
DT3020
4D13125G12
Содержание Cutler-Hammer Digitrip 3000
Страница 18: ...I B 17555C Effective November 1999 Page 12 Fig 2 1 Typical Communications Wiring Diagram...
Страница 27: ...I B 17555C Effective November 1999 Page 21 Fig 3 1 Digitrip 3000 Typical Wiring Diagram...
Страница 36: ...I B 17555C Effective November 1999 Page 30 Fig 3 11 Local Programming Sequence Flow Chart...
Страница 37: ...I B 17555C Effective November 1999 Page 31...
Страница 48: ...I B 17555C Effective November 1999 Page 42 Fig 7 1 Inverse Time Overcurrent Phase I4T Curves SC 5390 92B...
Страница 49: ...I B 17555C Effective November 1999 Page 43 Fig 7 2 Inverse Time Overcurrent Phase I2T Curves SC 5391 92B...
Страница 50: ...I B 17555C Effective November 1999 Page 44 Fig 7 3 Inverse Time Overcurrent Phase IT Curves SC 5392 92B...
Страница 51: ...I B 17555C Effective November 1999 Page 45 Fig 7 4 Inverse Time Overcurrent Phase Flat Curves SC 5393 92B...
Страница 52: ...I B 17555C Effective November 1999 Page 46 Fig 7 5 Short Delay Phase Curves SC 5394 92B...
Страница 53: ...I B 17555C Effective November 1999 Page 47 Fig 7 6 Inverse Time Overcurrent Short Delay Curves SC 5395 92B...
Страница 54: ...I B 17555C Effective November 1999 Page 48 Fig 7 7 Instantaneous Curves SC 5396 92B...
Страница 55: ...I B 17555C Effective November 1999 Page 49 Fig 7 8 Inverse Time Overcurrent Ground I4T Curves SC 5399 92B...
Страница 56: ...I B 17555C Effective November 1999 Page 50 Fig 7 9 Inverse Time Overcurrent Ground I2T Curves SC 5400 92B...
Страница 57: ...I B 17555C Effective November 1999 Page 51 Fig 7 10 Inverse Time Overcurrent Ground IT Curves SC 5401 92B...
Страница 58: ...I B 17555C Effective November 1999 Page 52 Fig 7 11 Inverse Time Overcurrent Ground Flat Curves SC 5402 92B...
Страница 59: ...I B 17555C Effective November 1999 Page 53 Fig 7 12 Short Delay Ground Curves SC 5403 92B...
Страница 60: ...I B 17555C Effective November 1999 Page 54 Fig 7 13 ANSI Moderately Inverse Curves SC 6685 96...
Страница 61: ...I B 17555C Effective November 1999 Page 55 Fig 7 14 ANSI Very Inverse Curves SC 6686 96...
Страница 62: ...I B 17555C Effective November 1999 Page 56 Fig 7 15 ANSI Extremely Inverse Curves SC 6687 96...
Страница 63: ...I B 17555C Effective November 1999 Page 57 Fig 7 16 IEC A Moderately Inverse Curves SC 6688 96...
Страница 64: ...I B 17555C Effective November 1999 Page 58 Fig 7 17 IEC B Very Inverse Curves SC 6689 96...
Страница 65: ...I B 17555C Effective November 1999 Page 59 Fig 7 18 IEC C Extremely Inverse Curves SC 6690 96...
Страница 66: ...I B 17555C Effective November 1999 Page 60 Fig 7 19 IEC D Flat Curves SC 6691 96...
Страница 68: ...I B 17555C Effective November 1999 Page 62...
Страница 73: ...I B 17555C Effective November 1999 Page A5 Fig A 7 DT3001 Typical Wiring Diagram...
Страница 76: ...I B 17555C Effective November 1999 Page A8...
Страница 81: ...I B 17555C Effective November 1999 Page B5 Fig B 2 Digitrip 3010 3020 Dimensions Inches...
Страница 83: ...I B 17555C Effective November 1999 Page B7 Fig B 3 Digitrip 3010 3020 Typical Wiring Diagram...
Страница 89: ...I B 17555C Effective November 1999 Page B13...
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