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力特 PGR-4700直流系统接地监测仪用户手册(英文).pdf
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详细说明:力特 PGR-4700直流系统接地监测仪用户手册(英文)pdf,力特 PGR-4700直流系统接地监测仪用户手册(英文)i Littelfus
Se PGR-4700 Sensitive Ground-Fault Relay
TABLE OF CONTENTS
LIST OFFIGURES
Page
Page
Table of contents uummuummmmmmum I
1. PGR-4700 Out ne and Mounting Details mamn 2
List af Figures
---
T
List of Tables
3
心 ypical Connection Diagram-…--
GC-5000-series Current transformers n 4
4. PGK-0055 Panel-Mount Adapter
6. PGA-0500 Analog Percent Cuirrent"ananias.6
1. GENERAL .asm..
7
2. OPERATION
7。 Ground- Fault-Test c rcuit
g
2.1 Relay Operating Mode
22 Front-Panel controls
2.2.1 Ground-Fault Tnp levels..mai.ein.
2.2.2 Ground-Fault Trip Time mesrtrIrrtr
LIST OF TABLES
223 Reset,…,11
Pag
2.24 Test
1. Ground-Fau t-Test Record
2.3 Front- Panel nd cation
2, 3. 1 Power
232≥山
23.3cT
DISCLAIMER
2.4 Analog utput.mauasnauaemaaeammaanmausintan
2.5 Remote test
26 Remote reset,…3
pecifications afe subject to change without
2.7 CT Verification anmeneuseansanasenataneunann 3
notice. Uttelfuse, Inc is rrot Nable for contingent or
conse quential damages, or for expenses sustained
3. INSTALLATION
国留1
adjustment or a Malfunction
4. TECHNCAL SPECIFICATIONS
5. ORDERING INFORMATION.s..a-8
6
PERFORMANCE TEST
是!m是日
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Pub. PCR-47C0-M. September 8, 2009
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i Littelfus
Se PGR-4700 Sensitive Ground-Fault Relay
1. GENERAL
be a minimum if the first ground-fault device to
operate is the one immediately upstream from the
The PGR-4700 is a ground-fault relay for ac fault
power supply systems that require ground-fault
detertion as low as 10 mA. it is suited for sensitive
223 Reset
ground-fault protection an systems with significant
The front-panel RESET switch is used to reset
harmonic content. Its output relays can operate in
latching trips. When remote -reset terminals 5 and 6
the fail-safe or non fail-safe mode for undervoltage
are connected, a trip remains latched until the RESET
or shunt-trip applications. The PGR 4700 has two
switch is pressed or the remote-reset terminals are
sets of NONG (Farm C] relay contacts for use in
independent control circuits. Additional features
momentary opened. Cycling the驯u甲 pply voltage will
also reset the pgr-470D
nclude Led trip and power indication, autoreset or
If the remote-reset termina s are not connected the
latching trips with front-panel and remote reset, test
PGR-470D operates in non-latching mode and a trip
switch, 0- to 1-mA analog output, cT verification with
will reset when the fauit is removed
LED indication, a digital trip-level switch, and a trip
time setting
224 Test
Ground-fault current is sensed by a PGC- 5000
series core-balance current transformer(cT). The trip
The TEST switch is used to test the ground-fault CT
level of the ground-fault cireuit is digital-swhitch
selectable from 10 mA to 3 A. Trip time is
TEST switch is pressed, the dreamt wi trip. the
adustable from o to 1.5s
PAl LED wi light, and the output relay wil operate
The analog output wilL indicate full scale( mA during
the test
2. OPERATION
2.1 Relay Operating Mode
2.3 Front-antel Indication
he relay-operating-mode switch is located
2.3.1 Power
behind the front panel, See Fig. 1. Disconnect
The green LED labeled PR indicates presence of
supply voltage before accessing switch. The ffont
pply Yo是sge
panel snaps into the terminal block and can b
removed using a screw driver. In the fail-safe mod
232
(switch open), the output relay energizes when the
The red LED labeled =Al indicates a ground-fault
ground-fault circuit is not tripped, Fail-safe mode is
the factory seting
In the non-fail-safe mode (switch closed), the 2.3.3 CT
output relay energizes when a' ground-fault trip
The red LED labeled CT indicates that a
OCCURE
PGC-5000-series current transformer is not
connected. see Secton 2.7
2.2 Front-Pane Controls
2.2.1 Ground-Fault Trip Level
2.4 Analog output
The A selector switch is used to set the ground-fault
A non-isolated, 0- to 1-mA output (terminals 9
trip level from 10 mA to 3 A. For ground-fault
and 10)indicates ground-fault current sensed by the
detection, the swtch setting must be set substantially
CT. The full-scale value corresponds to the ground
below the prospective ground-fault current To avoid
fault trip setting. For example, if the ground-fault tip
sympathetic tipping. the switch setting must be above
etting is 30 mA, then 1 mA autput will be indicated
the charging current of the protected feeder
when the measured current is 30 mA. The output is
linear between zero and fu scale. See Figs. 2 and 6
2.2.2 Ground-Fault Tnp Time
or Piga-D50o meter details
The PGR-4700 has a definite-time trip
characteristic, In tripping systems, the TIME DELAY
2.5 Remote Tost
selector is used to set the ground-fault trip time for
Connect terminals 4 and 5 to remote lest set
coordination with upstream and downstream
Seci+ 224
ground-fault devices. Trip time is selectable from
0 to 1.5 s. Coord nation requires the same trip level
for all ground-fault devices in a system and the trip
time to progressively increase
upsteam. The
amqunt of equipment removed from the system will
Pub. PCR-47C0-M. September 8, 2009
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20的LeBe·PwR-ARD
Littelfus
Se PGR-4700 Sensitive Ground-Fault Relay
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7
145
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MDUNTINGDE
5
43
63
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25
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FRONT
SIDE
NOTES
1. DIMENSIONS IN MILLIMETRES(INCHESI
CPEN
2 MOUNTIN国sC和vs:MOR832
P世均
F山LFEP真一南FE
RELAY MODE FIITCH
ED BEHINDFE际 TFANEL
3 OVE RALL DIMENSION WHEN MOUNTED
DIN FN50 122 3 mm 75mm TOP-HAT R
4 ADILMSTMENT KNORS ARE REMDABLE
BOTTOM
FIGURE 1. PGR-4700 Outline and Mounting Detail
Pub. PCR-47C0-M. September 8, 2009
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Littelfus
Se PGR-4700 Sensitive Ground-Fault Relay
2 6 Remote Reset
Use terminal 1 (L1) as the line terminal on ac
Terminals 5 and 6 are used for remote reset, A systems or the positive terminal on dc systems Use
normally closed contact is required to configure the terminal 2( L2/N) as the neutral teftm' nal on ac
PGR4700 for latching operation with remote reset. systems or the negative terminal on dc systems
See secton 223
There is no separate ground terminal for a ground
wire
2.7 GT Verifcation
Pass the phase conductors through the GT
A trip w occur and the red CT LED will Eght wher
indow and position them in the centre of the
PGC-5000-senes CT s not connetted to terminals
apening (or 4-wire and single-phase systems, also
7and启
pass the neutral conductor through the CT window)
Do not pass ground conductors through the CT
3. INSTALLATION
window. In applications that require shields or drain
wires to pass through the CT window. return them
Note: Mounting, terminal block connections and
through the CT window before connecting them to
wiring must conform to applicable local electrical
ground
Connect the Pgc-50d0-series ct te
codes. Check all applicable codes prior to
terminals 7 and 8, and connect the shield to terminal
installation
3. CT connections are not polarity sensitive
Certain applications require twisted aK shie ded
This ground-fault monitoring system consists of a
twisted pair secondary CT Conductors. See Fig.3
PGR-4700-series Sensitive Ground-Fault Relay and
for PGC-5000-series CT dimensional drawings
a PGG-5000-senies GT connected as shown in Fig. 2
A PGR-4700 can be surface or DIN-rail mounted
See Fig. 1. Panel mounting requires a PGK-0055 o
PGK 0050 Pane- Mount Adapter. See Figs. 4 and 5
PGc6000s购s
PGR-4700
STOA
L
LT
LE
E-T
H10 REst ANteor
SUTELIT
dIrM
a 4h test
LTEnHSENEE
FIGURE 2. Typical Connection Diagram.
Pub. PCR-47C0-M. September 8, 2009
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Littelfus
日日
Se PGR-4700 Sensitive Ground-Fault Relay
TOP IEImTR RFMOYTDO
1母
72
2B3
MOUNTING DETAIL
FLUX
CONDIONES
FRONT
NOTES
1.DEsM巨TE5[s
2.材 OLNTIN SD皆自132
BOTTOM
PART
DMENSIONS
NUMBER
A
日
C
D
E
PGC52525090的0(90》80假租2)750的016
PEC-5L6O
60823913202)1504539680③B6053
PCC-BOEK34175015D2)14105B(z)
PGC5130130012218.085620309)183020135407)
P620200709011290114270010(9
FIGURE 3. PGC-5000-Series Current transformers
Pub. PGR4700-, June B 2009
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Littelfus
Se PGR-4700 Sensitive Ground-Fault Relay
11D
422
自5
PKNE号
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出=H
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FRACKET
SSmm WiDE
FRONT VIEW
DEWIEW
B50
13E
7
B
INSTALLATION INSTRUCTIONS
0C1南AD
1. REMVE BEZEL AND LATCH HELAY TA
BRACHET
40%0161DA
2.5阳 AHET THROUGH FRONT OF PANE
6703DH片
cUw叮TAN些邮E钟m凡 AT WASHERL
ANDLOCENUTSPROVIDED
4.3 1017] RAD
3. CCINNELT WIR NG TO TERMINALS
AITERNTTF
CEMFIGURATINa
4. STALL E2且USN631cRE
PHOVILELN
OTE
1.DM能 ES INGHES
PANEL CUTOUT DETAIL
FIGURE 4. PGK-0055 Panel-Mount Adapter
Pub. PCR-47C0-M. September 8, 2009
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Littelfus
日日
Se PGR-4700 Sensitive Ground-Fault Relay
160
57
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PANEL THICHNESS
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FRONT VIEW
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13
12
23
INSTALLATION INSTRUCTIONS
200的AD
1 WITH OWER FEMOWED LATCH RELAT TO
BRACHET
5
2. INEERT BRAD和 I THRL山GHF我 ONT OF E站NEL
最加DA
UT听 T AND SEGURE WITH FLAT MSHERS
ANDLOCNUTS PROIDED
4.317}RA
3, CONNECTWIEING TO TERMINALS
ALTERNATE
ATTACH COVER USING THUMB SCREWS
OTE
1.DIMENSIONS IN MILLIMETRES INCHES)
FEETS NEM: PEE
PANEL CUTOUT DETML
FIGURE 5. PGK-0060 Panel-Mount Adapter
Pub. PCR-47C0-M. September 8, 2009
ww LTte uee cem
20的LeBe·PwR-ARD
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