SE-701-OT [LITTELFUSE]

The SE-701 is a microprocessor-based;


型号：	SE-701-OT
厂家：	LITTELFUSE
描述：	The SE-701 is a microprocessor-based
文件：	总1页 (文件大小：2152K)
中文：	中文翻译
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Protection Relays & Controls

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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

Harmonic ﬁltering

Non-volatile trip

memory

Retains trip state while de-energized to simplify

troubleshooting

GROUNDED

SUPPLY

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

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)

PGA-0500 Analog % Current Meter

Optional panel-mounted analog meter displays

ground-fault current as a percentage of the CT

primary rating.

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

SE-701-O3

24 Vac

Reset Button

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

Mounting

Note: For optional conformal coating please consult factory.

Rev: 4-A-050213

Based on Manual Rev 10-A-041213

Littelfuse.com/se-701

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