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SE-701

更新时间： 2024-09-20 01:04:11
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力特 - LITTELFUSE /
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描述
The SE-701 is a microprocessor-based

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SE-701 数据手册

  
Protection Relays & Controls  
Gꢀoꢁꢂꢃ-Fꢄꢁꢅꢆ Pꢀoꢆeꢇꢆꢈoꢂ–Gꢀoꢁꢂꢃeꢃ Sysꢆeꢉs  
SE-701 SEriES (PGr-5701)  
Ground-Fault Monitor  
Description  
The SE-701 is a microprocessor-based ground-fault relay for resistance-  
and solidly-grounded systems. In addition to common systems, it is  
uniquely suited for use on systems with significant harmonic content.  
The SE-701 can provide main-plant protection, feeder-level protection,  
or individual-load protection. Proper current transformer selection  
provides the desired pickup range.The output contacts can be  
connected for use in protective tripping circuits or in alarm indication  
circuits.The analog output can be used with a PLC or a meter.  
Features & Benefits  
FEaturES  
bEnEFitS  
Adjustable pickup  
(1-99%)  
Trip setting based on input CT primary, allows use with  
any CT. Minimum 50 mA with EFCT Series.  
Adjustable time delay  
(50 ms-2.5 s)  
Adjustable trip delay allows quick protection and system  
coordination  
Form A and Form B ground-fault output contacts for  
operation of separate annunciation and trip circuits  
Output contacts  
Analog output  
(0-5V)  
Allows for connecting an optional meter (PGA-0500) or a  
control system  
Simplified Circuit Diagram  
CT-Loop monitoring  
Alarms when CT is not connected  
Compatible with variable-speed drives  
Eliminates nuisance tripping  
Selectable DFT or peak  
detection filtering  
A
CT  
A
Harmonic filtering  
Non-volatile trip  
memory  
Retains trip state while de-energized to simplify  
troubleshooting  
GROUNDED  
SUPPLY  
B
C
Microprocessor based  
No calibration required, saves on maintenance cost  
Allows operation in application where one side of PT is  
faulted, provides flexibility for numerous applications  
Universal power supply  
Accessories  
Ground-Fault CurrentTransformer  
A
Required current transformer model depends on  
application. We offer a variety of sensitive CTs with  
5- and 30-A primaries.  
SE-701 SERIES  
(Ground-Fault Monitor)  
L1  
L2  
PGA-0500 Analog % Current Meter  
Optional panel-mounted analog meter displays  
ground-fault current as a percentage of the CT  
primary rating.  
B
Ordering Information  
OrdErinG numbEr  
SE-701-OU  
Specifications  
IEEE Device Numbers  
Input Voltage  
Ground fault (50G/N, 51G/N)  
See ordering information  
H 75 mm (3.0"); W 55 mm (2.2"); D 115 mm (4.5")  
1-99% CT-Primary Rating  
0.05-2.5 s  
cOntrOl POwEr  
120/240 Vac/Vdc  
12/24 Vdc  
Dimensions  
Trip Level Settings  
Trip Time Settings  
SE-701-OD  
Contact Operating Mode Selectable fail-safe or non-fail-safe  
SE-701-OT  
48 Vdc  
Harmonic Filtering  
Test Button  
Standard feature  
Standard feature  
SE-701-O3  
24 Vac  
Reset Button  
Standard feature  
Standard feature  
Isolated Form A and Form B  
CSA certified, UL Listed (E340889),  
CE (European Union), C-Tick (Australian)  
0-5 V  
Consult factory  
5 years  
DIN, Surface (standard)  
Panel (with PMA-55 or PMA-60 adapter)  
accESSOriES  
rEquirEmEnt  
Required  
CT-Loop Monitoring  
Output Contacts  
Approvals  
Current Transformer  
PGA-0500  
Optional  
Analog Output  
Conformally coated  
Warranty  
PMA-55, PMA-60  
SE-EFVC Voltage Clamp  
Optional  
Optional  
Mounting  
Note: For optional conformal coating please consult factory.  
Rev: 4-A-050213  
Based on Manual Rev 10-A-041213  
© 2013 Littelfuse Protection Relays & Controls  
Littelfuse.com/se-701  
1

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 		SE-701-0U WITH CONFORMAL COATING
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 		The SE-701 is a microprocessor-based

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