Startco SE-701 User manual

SE-701 MANUAL
GROUND-FAULT MONITOR
December 14, 2006
Revision 5
Copyright © 2006 by Startco Engineering Ltd.
All rights reserved.
Publication: SE-701-M
Document: S95-C701-00000
Printed in Canada.

Startco Engineering Ltd. Page i
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
TABLE OF CONTENTS
PAGE
Table of Contents .............................................................. i
List of Figures ................................................................... i
List of Tables..................................................................... i
1. General ................................................................. 1
2. Operation ............................................................. 1
2.1 Configuration-Switch Settings .............................. 1
2.1.1 Relay Operating Mode................................ 1
2.1.2 Inhibit.......................................................... 1
2.1.3 CT Verification........................................... 1
2.1.4 Filter Selection............................................ 1
2.1.5 Autoreset..................................................... 1
2.2 Front-Panel Controls ............................................. 1
2.2.1 Ground-Fault Trip Level............................. 1
2.2.2 Ground-Fault Trip Time ............................. 1
2.2.3 Reset ........................................................... 1
2.2.4 Test ............................................................. 3
2.3 Front-Panel Indication........................................... 3
2.3.1 Power .......................................................... 3
2.3.2 Ground-Fault Trip....................................... 3
2.3.3 Inhibit.......................................................... 3
2.4 Analog Output ....................................................... 3
3. Installation ........................................................... 3
4. Technical Specifications...................................... 8
5. Ordering Information ......................................... 9
6. Warranty.............................................................. 9
7. Ground-Fault Performance Test...................... 10
LIST OF FIGURES
PAGE
1. SE-701 Outline and Mounting Details...................2
2. Typical Connection Diagram .................................3
3. EFCT-1 Outline and Mounting Details..................4
4. EFCT-2 Outline and Mounting Details..................5
5. EFCT-26 Outline and Mounting Details................6
6. PMA-55 Panel-Mount Adapter..............................7
7. Ground-Fault-Test Circuits ..................................10
LIST OF TABLES
PAGE
1. Ground-Fault-Test Record ...................................10
DISCLAIMER
Specifications are subject to change without notice.
Startco Engineering Ltd. is not liable for contingent or
consequential damages, or for expenses sustained as a
result of incorrect application, incorrect adjustment, or a
malfunction.

Startco Engineering Ltd. Page 1
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
1. GENERAL
The SE-701 is a microprocessor-based ground-fault
monitor for resistance-grounded and solidly grounded
systems. Its output relay can operate in the fail-safe or
non-fail-safe mode for undervoltage or shunt-trip
applications. The normally open and normally closed
output contacts are isolated for use in independent control
circuits. Additional features include LED and
fluorescent-flag trip indication, autoreset or latching trips
with front-panel and remote reset, self test, 0- to 5-V
analog output, inputs for standard and sensitive
ground-fault current transformers, CT verification for
sensitive current transformers, digital selector switches,
switch-selectable algorithms for fixed-frequency or
variable-frequency applications, and an inhibit that can be
enabled to prevent the output relay from operating during
a high-current ground fault.
Ground-fault current is sensed by a standard CT with a
1-A or 5-A secondary, or by a sensitive CT with a
5-A-primary rating (EFCT-1, EFCT-2, or EFCT-26). The
trip level of the ground-fault circuit is switch selectable in
1% increments from 1 to 99% of the CT-primary rating.
Trip time is switch selectable with 10 settings from 0.05
to 2.5 seconds.
2. OPERATION
2.1 CONFIGURATION-SWITCH SETTINGS
See Fig. 1 for switch configuration.
2.1.1 RELAY OPERATING MODE
The SE-701 has one output relay with isolated
normally open and normally closed contacts. Switch 1 is
used to set the operating mode of the output relay. In the
fail-safe mode, the output relay energizes when the
ground-fault circuit is not tripped. In the non-fail-safe
mode, the output relay energizes when a ground-fault trip
occurs.
2.1.2 INHIBIT
Switch 2 is used to select Class I or Class II operation.
In the INHIBIT OFF position, high-current inhibit is off
for Class I operation. In the INHIBIT ON position, high-
current inhibit is on for Class II operation. If high-current
inhibit is on and ground-fault current escalates above
eleven times the CT-primary rating before the ground-
fault circuit trips, the output relay will not operate until
ground-fault current falls below eight times the
CT-primary rating. This feature allows the overcurrent
protection to operate in applications where the ground-
fault current can be larger than the interrupting capacity
of the device tripped by the SE-701.
2.1.3 CT VERIFICATION
Switch 3 is used to enable CT verification with an
EFCT-series CT. In the CT VERIFY ON position, a trip
will occur if the CT is disconnected. The red TRIP LED
will flash to indicate a trip initiated by a CT fault. Switch
3 must be in the CT VERIFY OFF position when a 5-A-
or 1-A-secondary CT is used.
2.1.4 FILTER SELECTION
Switch 4 is used to select the filtering algorithm for a
fixed-frequency (50/60 Hz) or variable-frequency
application. The fixed-frequency algorithm allows lower
trip levels to be used by rejecting harmonics that can
cause nuisance tripping. The fixed-frequency setting can
be used in an application on the line side of a variable-
frequency drive. The variable-frequency setting should
be used if the CT is located on the load side of a variable-
frequency drive.
2.1.5 AUTORESET
Switch 5 is used to select autoreset or latching trips.
See Section 2.2.3.
2.2 FRONT-PANEL CONTROLS
2.2.1 GROUND-FAULT TRIP LEVEL
The % CT PRIMARY selector switches are used to set
the ground-fault trip level as a percentage of the
CT-primary rating. Protection against arcing ground
faults in a solidly grounded system requires a ground-
fault CT that will not saturate below the operating value
of the overcurrent protection. For reliable ground-fault
detection, the ground-fault trip level must be substantially
below the prospective ground-fault current. To avoid
sympathetic tripping, the trip level must be above the
charging current of the largest feeder; and to eliminate
nuisance tripping, surge current must not saturate the CT.
For CT-selection assistance, see Technical Information
11.1 available at www.startco.ca.
2.2.2 GROUND-FAULT TRIP TIME
The TIME (s) selector switch is used to set the ground-
fault trip delay time for coordination with upstream and
downstream ground-fault devices. Coordination requires
the same trip level for all ground-fault devices in a system
and the trip time to progressively increase upstream. The
amount of equipment removed from the system will be a
minimum if the first ground-fault device to operate is the
one immediately upstream from the fault.
2.2.3 RESET
The reset circuit responds only to a momentary closure
so that a jammed or shorted switch will not prevent a trip.
The front-panel RESET switch is inoperative when the
remote-reset terminals (6 and 7) are shorted.

Startco Engineering Ltd. Page 2
SE-701 Ground-Fault Monitor Rev. 4
Pub. SE-701-M, December 14, 2006.
FIGURE 1. SE-701 Outline and Mounting Details.

Startco Engineering Ltd. Page 3
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
If Switch 5 is in the LATCHING position, a trip
remains latched until the RESET switch is pressed, the
remote-reset terminals are momentarily shorted, or the
supply voltage is cycled. Cycling the supply voltage will
not reset (black) the fluorescent flag.
If Switch 5 is in the AUTORESET position, a trip will
reset when the fault is removed. The fluorescent flag will
not reset until the RESET switch is pressed or the remote-
reset terminals are momentarily shorted. Cycling the
supply voltage will not reset the fluorescent flag unless
the remote-reset terminals are shorted.
2.2.4 TEST
The TEST switch is used to test the ground-fault
circuit, the indication, and the output relay. When the
TEST switch is pressed for one second; the circuit will
trip, trip indication will come on, and the output relay will
operate. If high-current inhibit has been selected, the
inhibit indicator will come on.
2.3 FRONT-PANEL INDICATION
2.3.1 POWER
The green LED labeled PWR indicates the presence of
supply voltage.
2.3.2 GROUND-FAULT TRIP
The red LED and the fluorescent flag, labeled TRIP,
indicate a trip. A solid red LED indicates a ground-fault
trip and a flashing LED indicates a trip initiated by a CT
fault.
2.3.3 INHIBIT
The yellow LED labeled INHB indicates that output-
relay operation was inhibited during a high-current
ground fault. When a ground-fault trip occurs, both the
TRIP and INHB LED’s will be ON. Inhibit indication is
reset when the ground-fault trip is reset. Inhibit operation
and indication will not respond if Switch 2 is in the
INHIBIT OFF position.
2.4 ANALOG OUTPUT
The non-isolated, 0- to 5-V analog output indicates
ground-fault current sensed by the ground-fault CT. The
output is 5 V at 100% of the CT-primary rating.
3. INSTALLATION
An SE-701 can be surface- or DIN-Rail-mounted. See
Fig. 1. Panel mounting requires a PMA-55 Panel-Mount
Adapter. See Fig. 6.
Pass the phase conductors through the CT window as
shown in Fig. 2 (for 4-wire and single-phase systems, also
pass the neutral conductor through the CT window). Do
not pass ground conductors through the CT window. In
applications that require shields or drain wires to pass
through the CT window, return them through the CT
window before connecting them to ground. If a ground
fault CT with a 5-A secondary is used, connect it to
terminals 2 and 3 (terminals 1 and 3 with a 1-A
secondary) and ground terminal 3. If an EFCT-x is used,
connect it to terminals 4 and 5, connect the shield to
terminal 5, and ground terminal 5. Remove the
connection to terminal 9 for dielectric-strength testing
—all inputs and outputs have ANSI/IEEE C37.90 surge-
protection circuits that conduct above 300 Vac. See
Figs. 3, 4, and 5 for sensitive EFCT-x dimensional
drawings.
XX 5X:
1A 5A C
STOP START
1M 1M
SE-701
RS
REMOTE RESET
V
LEAKAGE
ANALOG
OUTPUT
S1 S2
O/L
L N
12 435
13 14
15 16
6
7
89
L1
11 10
L2
ISOLATED CONTACTS
1A 5A C S1 S2
12345
SE-701
EFCT-X
ALTERNATE CT
CONNECTIONS
XXX:1 OR
Technical Information 11.1
provides additional
information on CT selection.
FIGURE 2. Typical Connection Diagram.

Startco Engineering Ltd. Page 4
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
NOTES:
1.
2.
DIMENSIONS IN MILLIMETRES (INCHES).
MOUNTING SCREWS: M4 OR 8-32.
121.0
25.0
110.05.5 5.5
22.0
82.0
69.8
56.0
121.0
80.0
30.0
20.5
30.0
138.0 MAX
126.0
56.0
46.0
(4.76)
(0.98)
(4.33)(0.22) (0.22)
(0.87)
(3.23)
(2.75)
(2.21)
(4.76)
(3.15)
(1.18)
(0.81)
(1.18)
(5.43)
(4.96)
(2.21)
(1.81)
M5 SCREWS
TOP MOUNTING DETAIL
NOTE 2
FRONT SIDE
5.0 (0.20) 0
FLUX
CONDITIONER
(OPTIONAL)
RECESSED FOR
8-mm HEX NUT
1.0 (0.04) DEEP
EFCT-1 EARTH FAULT CT
600 V INSULATION CLASS
STARTCO
ENGINEERING LTD.
P
P
SS
2
2
1
1
FIGURE 3. EFCT-1 Outline and Mounting Details.

Startco Engineering Ltd. Page 5
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
215.0
215.0
215.0
162.0
31.0
25.0
198.0 8.58.5
52.3
60.0
64.0
31.0
236 MAX
(8.46)
(8.46)
(8.46)
(6.38)
(1.22)
(0.98)
(7.80) (0.33)(0.33)
(2.06)
(2.36)
(2.52)
(1.22)
(9.29)
M5 SCREWS
TOP MOUNTING DETAIL
M4 OR 8-32 TAP
SIDEFRONT
EFCT-2 EARTH FAULT CT
600 V INSULATION CLASS
STARTCO
ENGINEERING LTD.
5.0 (0.20) DIA
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
MOUNTING SCREWS: M4 OR 8-32.
2.
P
P
SS
2
2
1
1
SP
11
139.7
(5.50)
BONDING
SCREW
FLUX CONDITIONER
(INCLUDED)
26.5
(1.04)
FIGURE 4. EFCT-2 Outline and Mounting Details.

Startco Engineering Ltd. Page 6
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
DETAIL ‘A’
MOUNTING FOOT
INSTALLATION
TOOL
NOTES:
1.
2.
3.
DIMENSIONS IN MILLIMETRES (INCHES).
PRESS MOUNTING FEET IN PLACE USING
INSTALLATION TOOL PROVIDED (DETAIL ‘A’)
MOUNTING SCREWS: M4 OR 8-32.
68.0
26.0
52.55.05.0
68.0
34.0
26.525.0
58.0
17.0
26.5
72.0
34.0
7.0
110.0 MAX
52.5
42.6
(2.68)
(1.02)
(2.07)(0.20)(0.20)
(2.68)
(1.34)
(1.04)(0.98)
(2.28)
(0.67)
(1.04)
(2.83)
(1.34)
(0.87)
(0.43)
(2.07)
(1.68)
M5 SCREWS
TOP MOUNTING DETAIL
M4 OR 8-32 TAP
FRONT SIDE
4.0 (0.16) 0
RECESSED FOR
7-mm HEX NUT
3.0 (0.12) DEEP
P
P
SS
2
2
1
1
EFCT-26 EARTH FAULT CT
600 V INSULATION CLASS
STARTCO
ENGINEERING LTD.
FIGURE 5. EFCT-26 Outline and Mounting Details.

Startco Engineering Ltd. Page 7
SE-701 Ground-Fault Monitor Rev. 5
Pub. SE-701-M, December 14, 2006.
FIGURE 6. PMA-55 Panel-Mount Adapter.

Startco Engineering Ltd. Page 8
SE-701 Ground-Fault Monitor Rev. 3
Pub. SE-701-M, December 14, 2006.
4. TECHNICAL SPECIFICATIONS
Supply:
01 Option...............................120 Vac (+15, -40%),
50/60 Hz, 2.5 VA
02 Option...............................240 Vac (+15, -40%),
50/60 Hz, 2.5 VA
03 Option...............................24 Vac (+15, -40%),
50/60 Hz, 2.5 VA
0U Option..............................55 to 275 Vac, 50/60 Hz,
3.5 VA
75 to 275 Vdc, 2.0 W (1)
0D Option..............................9 to 36 Vdc, 3.0 W (1)
0T Option ..............................30 to 70 Vdc, 3.0 W (1)
Trip-Level Range..........................1 to 99% CT-Primary
Rating in 1% increments
(50 mA to 4.95 A with
EFCT-x)
Trip-Time Settings........................0.05, 0.10, 0.20, 0.30,
0.40, 0.50, 1.0, 1.5, 2.0,
and 2.5 seconds
Accuracies (2):
Trip Level (3)..........................Largest of 5% of setting or:
1-A input:
1% setting ..............-10, +15 mA
2 – 99% setting.......±10 mA
5-A and EFCT (5) inputs:
1% setting ..............-35, +60 mA
2 – 99% setting.......±35 mA
Trip Time (4) ..........................5% of setting
(-25, +20 ms minimum)
Inhibit:
Off .........................................Class I
On ..........................................Class II
Level ..............................11 x CT-Primary Rating
Input:
Algorithms ............................ DFT Digital or Peak
Digital Filter.......................... 50 to 60 Hz, Bandpass
CT.......................................... 1- or 5-A Secondary
Rating, or EFCT-x
CT Detection................. Open-Circuit Detection
with EFCT-x
Thermal Withstand:
Continuous .................... 5 x CT-Secondary Rating
1-Second........................ 80 x CT-Secondary
Rating
Burden:
5-A input ....................... < 0.01 Ω
1-A input ....................... < 0.05 Ω
EFCT input.................... 2 Ω
Analog Output:
Range .................................... 0 to 5 Vdc,
5 V = 100% CT Rating
Output Impedance ................ 220 Ω
Reset ............................................. Front-Panel Switch and
Remote N.O. Momentary
Contact
Functional Test............................. Front-Panel Switch
Relay Contacts:
Configuration ...................... Isolated N.O. and N.C.
Operating Mode .................. Fail-Safe or Non-Fail-Safe
CSA/UL Contact Rating........ 8 A resistive 250 Vac,
8 A resistive 30 Vdc
Supplemental Contact Ratings:
Make/Carry 0.2 s ........... 20 A
Break:
dc ................................ 30 W resistive,
15 W inductive (L/R = 0.04 s)
ac ................................ 2,000 VA resistive,
1,400 VA inductive
(PF = 0.4)
Subject to maximums of 8 A and 250 V (ac or dc).
Operating Mode ........................... Latching or Autoreset
Terminals...................................... Wire-clamping,
24 to 12 AWG
(0.2 to 2.5 mm2)
conductors

Startco Engineering Ltd. Page 9
SE-701 Ground-Fault Monitor Rev. 0
Pub. SE-701-M, December 14, 2006.
Dimensions:
Height....................................75 mm (3.0")
Width.....................................55 mm (2.2")
Depth .....................................115 mm (4.5")
Shipping Weight...........................0.45 kg (1 lb.)
Environment:
Operating Temperature.........-40 to 60°C
Storage Temperature.............-55 to 80°C
Humidity ...............................85% Non-Condensing
Surge Withstand ...........................ANSI/IEEE 37.90.1-1989
(Oscillatory and Fast
Transient)
Certification ..................................CSA, Canada and USA
LR 53428
USC
R
Australia
NOTES
(1) CSA Certification pending.
(2) Over operating temperature range of –40 to 60°C.
(3) CT accuracy not included.
(4) Trip time at 3 x trip-level setting.
(5) For maximum lead resistance of 1 Ω.
5. ORDERING INFORMATION
SE-701-0
1 120-Vac Supply
2 240-Vac Supply
3 24-Vac Supply
U Universal ac/dc Supply
D 9- to 36-Vdc Supply
T 30- to 70-Vdc Supply
EFCT-1 ............ Sensitive Earth-Fault CT,
5-A-primary rating, 82-mm (3.2") window
EFCT-1FC....... Flux Conditioner for EFCT-1,
70-mm (2.7”) window
EFCT-2 ............ Sensitive Earth-Fault CT, with
Flux Conditioner, 5-A-primary rating,
139-mm (5.5”) window
EFCT-26.......... Sensitive Earth-Fault CT,
5-A-primary rating,
26-mm (1”) window
PMA-55 ........... Panel-Mount Adapter
SE-EFVC......... Voltage Clamp
Consult factory for custom mounting adapters.
6. WARRANTY
The SE-701 Ground-Fault Monitor is warranted to be
free from defects in material and workmanship for a
period of five years from the date of purchase.
Startco Engineering Ltd. will (at Startco’s option)
repair, replace, or refund the original purchase price of an
SE-701 that is determined by Startco to be defective if it
is returned to the Startco factory, freight prepaid, within
the warranty period. This warranty does not apply to
repairs required as a result of misuse, negligence, an
accident, improper installation, tampering, or insufficient
care. Startco Engineering Ltd does not warrant products
repaired or modified by non-Startco Engineering Ltd.
personnel.

Startco Engineering Ltd. Page 10
SE-701 Ground-Fault Monitor Rev. 0
Pub. SE-701-M, December 14, 2006.
7. GROUND-FAULT PERFORMANCE TEST
To meet the requirements of the National Electrical
Code (NEC), as applicable, the overall ground-fault
protection system requires a performance test when first
installed. A written record of the performance test is to
be retained by those in charge of the electrical
installation in order to make it available to the authority
having jurisdiction. A test-record form is provided for
recording the date and the final results of the
performance tests. The following ground-fault system
tests are to be conducted by qualified personnel:
a) Evaluate the interconnected system in accordance
with the overall equipment manufacturer’s detailed
instructions.
b) Verify proper location of the ground-fault current
transformer. Ensure the cables pass through the
ground-fault-current-transformer window. This
check can be done visually with knowledge of the
circuit. The connection of the current-transformer
secondary to the SE-701 is not polarity sensitive.
c) Verify that the system is correctly grounded and that
alternate ground paths do not exist that bypass the
current transformer. High-voltage testers and
resistance bridges can be used to determine the
existence of alternate ground paths.
d) Verify proper reaction of the circuit-interrupting
device in response to a simulated or controlled
ground-fault current. To simulate ground-fault
current, use CT-primary current injection. Fig. 7 (a)
shows a test circuit using a Startco SE-400 Ground-
Fault-Relay Test Unit. The SE-400 has a
programmable output of 0.5 to 9.9 A for a duration of
0.1 to 9.9 seconds. Set the test current to 120% of
the SE-701 setting. Fig. 7 (b) shows a test circuit
using a Startco SE-100T Ground-Fault-Relay Tester.
The SE-100T provides a test current of 0.65 or 2.75
A for testing 0.5- and 2.0-A trip levels. Inject the test
current through the current-transformer window for
at least 2.5 seconds. Verify that the circuit under test
has reacted properly. Correct any problems and re-
test until the proper reaction is verified.
e) Record the date and the results of the test on the
attached test-record form.
NOTE: Do not inject test current directly into CT-input
terminals 1, 2, 3, 4, and 5.
SE-400
SE-701
RMT1
REMOTE
TEST 9
8
1
5
3
11 12
RMT2
L
L
N
N
L1
L1
OP1 OP2
L2
L2
FROM
POWER
SOURCE LOAD
a) USING SE-400
b) USING SE-100T
SE-100T
SE-701
L
L
N
N
L1
L1
CLO
L2
L2
FROM
POWER
SOURCE
XXX:5
LOAD
HI
0.65 A
2.75 A
REMOTE
TEST
RMT
S25A C
1A S1
123 45
11
10
5A C
1A S1
123 45
XXX:5
S2
11
10
FIGURE 7. Ground-Fault-Test Circuits
TABLE 1. GROUND-FAULT-TEST RECORD
DATE TEST RESULTS
Retain this record for the authority having jurisdiction.