Startco SE-704 User manual

SE-704 MANUAL
EARTH-LEAKAGE MONITOR
January 18, 2008
REVISION 2
SE-704
EARTH LEAKAGE MONITOR
PWR CT TRIP
TEST
RESET
TIME ( )
ms
30
400
55
100
200
300 500
600
800
1000
10
LEVEL (mA)
150
30
60
80
200
300
400
500
100
STARTCO
ENGINEERING LTD.
Copyright © 2008 by Startco Engineering Ltd.
All rights reserved.
Publication: SE-704-M
Document: S95-C704-00000
Printed in Canada.

This page intentionally left blank.

Startco Engineering Ltd. Page i
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
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 Filter Selection................................................. 1
2.1.3 CT Verification................................................ 1
2.1.4 Reset Mode ...................................................... 1
2.2 Front-Panel Controls................................................... 1
2.2.1 Earth-Leakage Trip Level ............................... 1
2.2.2 Earth-Leakage Trip Time................................ 1
2.2.3 Reset................................................................. 1
2.2.4 Test................................................................... 1
2.3 Front-Panel Indication ................................................ 3
2.3.1 Power ............................................................... 3
2.3.2 Trip................................................................... 3
2.3.3 CT Verification................................................ 3
2.4 Analog Output............................................................. 3
2.5 Self Diagnostics .......................................................... 3
3. Installation ................................................................. 3
4. SE-704 Compatibility ............................................... 4
5. Technical Specifications ........................................... 9
6. Ordering Information ............................................ 10
7. Warranty..................................................................10
8. Performance Test.................................................... 11
LIST OF FIGURES
PAGE
1. SE-704 Outline and Mounting Details ...................... 2
2. Typical Connection Diagram..................................... 3
3. SE-CS30-26 Current Sensor ...................................... 5
4. SE-CS30-70 Current Sensor ...................................... 6
5. PMA-55 Panel-Mount Adapter.................................. 7
6. PMA-60 Panel-Mount Adapter.................................. 8
7. Earth-Fault-Test Circuit ........................................... 11
LIST OF TABLES
PAGE
1. Trip-Features Comparison ......................................... 4
2. Earth-Fault-Test Record ........................................... 11
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 ii
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
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Startco Engineering Ltd. Page 1
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
1. GENERAL
The SE-704 is a microprocessor-based earth-leakage
monitor for ac power supply systems that require earth-
leakage detection as low as 10 mA. It is uniquely suited
for very sensitive earth-fault protection on systems with
significant harmonic content. Its output relay can operate
in the fail-safe or non-fail-safe mode for undervoltage or
shunt-trip applications. The SE-704 has one output relay
with isolated normally open and normally closed contacts
for use in independent control circuits. Additional
features include LED trip and power indication, autoreset
or latching trips with front-panel and remote reset, trip
memory, test switch, self diagnostics, 0- to 5-V analog
output, CT verification with LED indication, digital
selector switches, and switch-selectable algorithms for
fixed-frequency or variable-frequency applications.
Earth-leakage current is sensed by an SE-CS30-series
core-balance earth-fault current transformer. The trip
level of the earth-leakage circuit is digital-switch
selectable from 10 to 500 mA. Trip time is digital-switch
selectable from 30 to 1,000 ms.
2. OPERATION
2.1 CONFIGURATION-SWITCH SETTINGS
See Fig. 1.
2.1.1 RELAY OPERATING MODE
Switch 1 is used to set the operating mode of the output
relay. In the fail-safe mode, the output relay energizes
when the earth-leakage circuit is not tripped. In the fail-
safe mode, non-volatile memory retains the trip status of
the SE-704. If tripped, and the supply voltage is cycled,
the SE-704 will remain tripped, with the trip relay
de-energized and the TRIP LED on, until reset.
In the non-fail-safe mode, the output relay energizes
when an earth-leakage trip occurs. In the non-fail-safe
mode, trip status is not retained in non-volatile memory.
2.1.2 FILTER SELECTION
Switch 2 is used to select the filtering algorithm for a
fixed-frequency (50/60 Hz) or variable-frequency
application. The FIXED FREQUENCY setting uses a
DFT filter that allows lower trip levels to be used by
rejecting harmonics that can cause nuisance tripping.
The VARIABLE FREQUENCY setting uses a peak-
detection algorithm with a wider band width for fault
detection in variable-frequency drive applications.
2.1.3 CT VERIFICATION
Switch 3 is used to enable CT verification. In the
ON position, a trip will occur if the SE-CS30 current
sensor is disconnected.
2.1.4 RESET MODE
Switch 4 is used to select autoreset or latching trips.
See Section 2.2.3.
2.2 FRONT-PANEL CONTROLS
2.2.1 EARTH-LEAKAGE TRIP LEVEL
The LEVEL (mA) selection switch is used to set the
earth-leakage trip level. For earth-leakage detection, the
earth-leakage trip level must be substantially below the
prospective earth-fault current. To avoid sympathetic
tripping, the trip level must be above the charging current of
the protected feeder.
2.2.2 EARTH-LEAKAGE TRIP TIME
The SE-704 has a definite-time trip characteristic. The
TIME (ms) selector switch is used to set the earth-leakage
trip time for coordination with upstream and downstream
earth-fault devices. Coordination requires the same trip
level for all earth-leakage 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 earth-leakage device to operate is the one
immediately upstream from the fault.
2.2.3 RESET
If the Reset Mode switch is in the LATCHING
position, a trip remains latched until the RESET switch
is pressed or the remote-reset terminals (6 and 7) are
momentarily connected. In the non-fail-safe relay
operating mode, cycling the supply voltage will also
reset the SE-704.
If the Reset Mode switch is in the AUTORESET
position, a trip will reset when the fault is removed.
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 are
connected.
2.2.4 TEST
The TEST switch is used to test the earth-leakage
circuit, the indication, and the output relay. When the
TEST switch is pressed for one second, a test signal is
applied to the earth-leakage-detection circuit, the circuit
will trip, the TRIP LED will light, and the output relay
will operate.

Startco Engineering Ltd. Page 2
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
110.0
6.3
113.0 (NOTE 3)
(4.33)
(0.25)
(4.45)
SIDE
55.0
(2.17)
75.0
(2.95)
FRONT
BOTTOM
STARTCO
ENGINEERING LTD.
SE-704
EARTH LEAKAGE MONITOR
PWR CT TRIP
TEST RESET
TIME ( )
ms
30
400
55
100
200
300 500
600
800
1000
10
LEVEL (mA)
150
30
60
80
200
300
400
500
100
8.7 37.5
55.0
(0.34) (1.48)
(2.17)
61.2
75.0
6.9
(2.41)
(2.95)
(0.27)
MOUNTING DETAIL
NOTE 2
(0.34)
TOP
OFF ON
FIXED
FREQUENCY
VARIABLE
FREQUENCY
FAIL-SAFE
LATCHING
NON-FAIL-SAFE
AUTORESET
3
4
2
1
CONFIGURATION
SWITCHES
NOTES:
1.
DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M4 OR 8-32.
3. OVERALL DIMENSION WHEN MOUNTED ON
DIN EN50022 35 mm x 7.5 mm TOP-HAT RAIL.
4. ADJUSTMENT KNOBS ARE REMOVABLE.
5. CONFIGURATION SWITCHES SHOWN
IN DEFAULT POSITION.
1 2345678
S1 S2 RS
CT ANALOG
OUTPUT
RESET
RESET MODE
CT VERIFICATION
FILTER SELECTION
RELAY OPERATING MODE
NOTE 5
910111213141516
L2
NL1
FIGURE 1. SE-704 Outline and Mounting Details.

Startco Engineering Ltd. Page 3
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
2.3 FRONT-PANEL INDICATION
2.3.1 POWER
The green LED labeled PWR indicates presence of
supply voltage.
2.3.2 TRIP
The red LED labeled TRIP indicates a trip. A solid red
LED indicates an earth-leakage trip and a flashing LED
indicates a trip initiated by a CT fault. Two fast flashes of
the TRIP LED indicate a diagnostic trip. See Section 2.5.
2.3.3 CT VERIFICATION
The green LED labeled CT indicates that an SE-CS30
sensor is connected, even if CT verification is disabled.
2.4 ANALOG OUTPUT
The non-isolated, 0- to 5-V analog output indicates earth-
leakage current sensed by the earth-leakage CT. The output
is 5 V when earth-leakage current is 500 mA.
2.5 SELF DIAGNOSTICS
A diagnostic trip is indicated by two fast flashes of the
TRIP LED. It can be caused by a problem detected by the
watchdog timer, or from an incorrect reading from non-
volatile memory. Press RESET or cycle supply voltage. If
the problem persists, consult Startco.
3. INSTALLATION
This earth-leakage monitoring system consists of an
SE-704 earth-leakage monitor and an SE-CS30 current
sensor connected as shown in Fig. 2.
An SE-704 can be surface or DIN-rail mounted. See
Fig. 1. Panel mounting requires a PMA-55 or PMA-60
Panel-Mount Adapter. See Figs. 5 and 6.
Pass the phase conductors through the CT window and
position them in the centre of the opening (for 4-wire and
single-phase systems, also pass the neutral conductor
through the CT window). Do not pass earth 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 earth. Connect an SE-CS30 current sensor to
terminals 4 and 5, connect the shield to terminal 5, and
earth terminal 5. See Figs. 3 and 4 for SE-CS30 current-
sensor dimensional drawings.
Remove the connection to terminal 9 for dielectric-
strength testing.
SE-CS30-X
S1 S2
STOP START
1M
1M
SE-704
RS
REMOTE RESET
V
LEAKAGE
ANALOG
OUTPUT
O/L
L N
45
13 14
15 16
6
7
89
L1
11 10
L2
N
ISOLATED CONTACTS
RESET
FIGURE 2. Typical Connection Diagram

Startco Engineering Ltd. Page 4
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
4. SE-704 COMPATIBILITY
The current SE-704 has been enhanced with the
addition of non-volatile trip memory for the fail-safe
relay operating mode. Prior to hardware revision 01, a
mechanical flag was used instead of non-volatile trip
memory. The current revision of the SE-704 can
directly replace previous revision-00 units. The
hardware-revision number is listed on the SE-704
model/serial-number label affixed to the SE-704
enclosure. Both generations of SE-704 are compared
in Table 1.
The SE-704 was previously available with SE-704-01
120-Vac and SE-704-02 240-Vac control-voltage options.
These have been discontinued. An SE-704-0U universal
120/240-Vac/Vdc unit can directly replace an SE-704-01
or SE-704-02.
TABLE 1. TRIP-FEATURES COMPARISON
HARDWARE REVISION
00 ≥01
LED trip indication Yes Yes
Mechanical flag trip indication Yes No
Non-volatile trip memory No Yes
Fail-safe
Trip LED: Off
Trip relay: Energized
Trip flag: Red
Trip LED: On
Trip relay: De-energized
Device state after supply voltage cycled
when tripped (earth fault removed)
Non-fail-safe
Trip LED: Off
Trip relay: De-energized
Trip flag: Red
Trip LED: Off
Trip relay: De-energized

Startco Engineering Ltd. Page 5
SE-704 Earth-Leakage Monitor Rev. 1
Pub. SE-704-M, January 18, 2008.
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
72.0 110.0 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) (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
34.0
7.0
(1.34)
(0.87)
SE-CS30-26
CURRENT SENSOR
LR 53428
USC
R
STARTCO
ENGINEERING LTD.
FIGURE 3. SE-CS30-26 Current Sensor.

Startco Engineering Ltd. Page 6
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
121.0
25.0
110.05.5 5.5
22.0
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)
(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 3
FRONT SIDE
Ø 5.0 (0.20)
RECESSED FOR
8-mm HEX NUT
1.0 (0.04) DEEP
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.
SE-CS30-70
CURRENT SENSOR
LR 53428
USC
R
STARTCO
ENGINEERING LTD.
S
1
S
2
P
1
FIGURE 4. SE-CS30-70 Current Sensor.

Startco Engineering Ltd. Page 7
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
STARTCO
ENGINEERING LTD.
SE-704
EARTH LEAKAGE MONITOR
PWR CT TRIP
TEST RESET
TIME ( )
ms
30
400
55
100
200
300 500
600
800
1000
10
LEVEL (mA)
150
30
60
80
200
300
400
500
100
85.0
85.0
42.5
(3.35)
(3.35)
(1.67)
FRONT VIEW
85.0
72.0
60.0
2.0 (0.08) RAD
MAXIMUM
ALTERNATE
CONFIGURATIONS
4.0 (0.16) DIA
8.7 (0.34) DIA
4.3 (0.17) RAD
6.0 6.0
42.5
30.0
60.0
9.5 9.5
79.0
(3.35)
(2.83)
(2.36)(0.24) (0.24)
(3.11)
(1.67)
(1.18)
(2.36)
(0.37) (0.37)
INSTALLATION INSTRUCTIONS:
NOTE:
PANEL CUTOUT DETAIL
REMOVE BEZEL AND LATCH MONITOR TO
BRACKET.
INSERT BRACKET THROUGH FRONT OF PANEL
CUTOUT AND SECURE WITH FLAT WASHERS
AND LOCKNUTS PROVIDED.
CONNECT WIRING TO TERMINALS.
INSTALL BEZEL USING 6-32 x 0.31 SCREWS
PROVIDED.
1.
2.
3.
4.
1. DIMENSIONS IN MILLIMETRES (INCHES)
110.0
75.0
(4.33)
(2.95)
PANEL THICKNESS
1.6 (0.06) TO 4.8 (0.19)
SIDE VIEW
55 mm (2.2) WIDE
MONITOR
BRACKET
6-32
6-32
FIGURE 5. PMA-55 Panel-Mount Adapter.

Startco Engineering Ltd. Page 8
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
99.0
88.0
44.0
(3.90)
(3.46)
(1.73)
FRONT VIEW
99.0
72.0
60.0
2.0 (0.08) RAD
MAXIMUM
ALTERNATE
CONFIGURATIONS
4.5 (0.18) DIA
8.7 (0.34) DIA
4.3 (0.17) RAD
6.0 6.0
44.0
30.0
60.0
9.5 9.5
79.0
(3.90)
(2.83)
(2.36)(0.24) (0.24)
(3.11)
(1.73)
(1.18)
(2.36)
(0.37) (0.37)
INSTALLATION INSTRUCTIONS:
NOTE:
PANEL CUTOUT DETAIL
WITH COVER REMOVED LATCH MONITOR TO
BRACKET.
INSERT BRACKET THROUGH FRONT OF PANEL
CUTOUT AND SECURE WITH FLAT WASHERS
AND LOCKNUTS PROVIDED.
CONNECT WIRING TO TERMINALS.
ATTACH COVER USING THUMB SCREWS
PROVIDED.
1.
2.
3.
4.
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MEETS NEMA3, IP53.
116.0
75.0
(4.57)
(2.95)
PANEL THICKNESS
1.6 (0.06) TO 4.8 (0.19)
SIDE VIEW
55 mm (2.2) WIDE
MONITOR
BRACKET
STARTCO
ENGINEERING LTD.
SE-704
EARTH LEAKAGE MONITOR
PWR CT TRIP
TEST RESET
TIME ( )
ms
30
400
55
100
200
300 500
600
800
1000
10
LEVEL (mA)
150
30
60
80
200
300
400
500
100
TRANSPARENT
COVER (NOTE 2)
M4
M4
FIGURE 6. PMA-60 Panel-Mount Adapter.

Startco Engineering Ltd. Page 9
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
5. TECHNICAL SPECIFICATIONS
Supply:
0U Option..............................2.5 VA, 120 to 240 Vac,
(+20, -55%) 50/60 Hz,
2.0 W, 100 to 240 Vdc,
(+20, -25%)
0D Option..............................2.0 W, 12 to 30 Vdc,
(+20, -25%)
0T Option ..............................2.0 W, 40 to 55 Vdc,
(+20, -25%)
03 Option...............................2.5 VA, 24 Vac,
(+15%, -40%), 50/60 Hz
Trip-Level Settings.......................10, 30, 60, 80, 100, 150,
200, 300, 400, and
500 mA
Trip-Time Settings........................30, 55, 100, 200, 300,
400, 500, 600, 800, and
1,000 ms
Accuracies: (1, 2)
Trip Level: (3, 4)
> 60 mA................................+ 0, -10%
= 60 mA................................+ 0, -10 mA
= 30 mA................................+ 0, -6 mA
= 10 mA................................2 mA
Trip Time
(5) ..............................10 ms
Input:
Algorithms...............................DFT Digital or Peak
DFT 3 dB Frequency Resp ... 32 to 86 Hz
Peak 3 dB Frequency Resp ... 20 to 420 Hz
CT .............................................SE-CS30 Current Sensor
CT Detection ........................Open-Circuit Detection
Thermal Withstand:
Continuous ...........................25 A Earth-Fault
Current
1-Second...............................400 A Earth-Fault
Current
Analog Output:
Range.......................................0 to 5 Vdc, 10 mV per mA
Output Impedance...................220 Ω
Reset..............................................Front-Panel Switch and
Remote N.O. Contact
Functional Test ............................ Front-Panel Switch
Output Relay:
Contact Configuration ........... Isolated N.O. and N.C.
Operating Mode ..................... Fail-Safe or Non-Fail-Safe
CSA/UL Rating ..................... 8 A Resistive, 250 Vac,
8 A Resistive, 30 Vdc
Supplemental Contact Ratings:
Make/Carry 0.2 s .............. 20 A
Carry Continuous.............. 8 A
Break:
dc.................................. 30 W Resistive,
15 W Inductive
(L/R = 0.04)
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
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°C to 60°C
Storage Temperature........... -55°C to 80°C
Humidity.............................. 85% Non-Condensing
Surge Withstand ...................... ANSI/IEEE 37.90.1-1989
(Oscillatory and Fast
Transient)
EMC Tests:
Verification tested in accordance with EN 50263:2000
Electrostatic Discharge......IEC 61000-4-2, EN 61000-4-2,
6 kV Contact Discharge
8 kV Air Discharge
Radiated RF.......................IEC 61000-4-3, EN 61000-4-3
10 V/m, 80-1000 MHz,
80% AM (1 kHz)
10 V/m, 900 MHz,
200 Hz Pulse Modulated

Startco Engineering Ltd. Page 10
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
Fast Transient .................... IEC 61000-4-4, EN 61000-4-4
±2 kV Common Mode
±1 kV Differential Mode
Surge Immunity................. IEC 61000-4-5, EN 61000-4-5
±2.0 kV Common Mode
±1.0 kV Differential Mode
Conducted RF ................... IEC 61000-4-6, EN 61000-4-6
10Vrms, 0.15-80 MHz,
80% AM (1 kHz)
Magnetic Field .................. IEC 61000-4-8, EN 61000-4-8
50 Hz, 30 A/m (continuous)
50 Hz, 300 A/m
(1 to 3 seconds)
Voltage Interruption .......... IEC 255-22-11, EN 60255-11
100% for 2, 5, 10, 20, 50,
100, & 200 ms
MHz Burst......................... IEC 255-22-1, EN 60255-22-1
1 kV Differential Mode
2.5 kV Common Mode
RFI Compliance .....................FCC Part 15, Subpart B,
Class A – Unintentional
Radiators
Certification .............................. CSA (Canada and USA)
Australia
(1) For earth-fault current in kA < 150 divided by the
trip setting in mA. [Ie< (150/level) x 1,000 A]
(2) At 50 or 60 Hz.
(3) SE-CS30-series CT included.
(4) Maximum lead resistance of 2 Ω.
(5) Trip Time at 3 x trip-level setting.
6. ORDERING INFORMATION
SE-704-0
U Universal 120/240-Vac/Vdc Supply
D 12/24-Vdc Supply
T 48-Vdc Supply
3 24-Vac Supply
SE-CS30-26 .........Current Sensor,
26.0 mm (1.02”) Window
SE-CS30-70 .........Current Sensor c/w Flux Conditioner,
69.8 mm (2.75”) Window
PMA-55 ...............Panel-Mount Adapter, NEMA 1
PMA-60 ...............Panel-Mount Adapter, NEMA 3, IP53
PMA-3..................Adapter Plate, GEC/MCGG
PMA-6..................Adapter Plate, FPL-GFRM
PMA-15 ...............Adapter Plate, MGFR
Consult factory for custom mounting adapters.
7. WARRANTY
The SE-704 Earth-Leakage 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-704 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 11
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
8. PERFORMANCE TEST
Some jurisdictions require periodic earth-fault
performance tests. A test record form is provided for
recording the date and the result of the performance
tests. The following earth-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 SE-CS30 current
sensor. Ensure the cables pass through the current-
sensor window. This check can be done visually
with knowledge of the circuit. The connection of the
current-sensor secondary to the SE-704 is not polarity
sensitive.
c) Verify that the system is correctly earthed and that
alternate earth paths do not exist that bypass the
current sensor. High-voltage testers and resistance
bridges can be used to determine the existence of
alternate earth paths.
d) Verify proper reaction of the circuit-interrupting
device in response to a simulated or controlled earth-
fault current. To simulate earth-fault current, use CT-
primary current injection. Fig. 7 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. Fig. 7
shows the use of resistors that reduce the injected
current to 10% of the SE-400 setting. Set the test
current to 120% of the SE-704 setting. Inject the test
current through the current-sensor 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 current-
sensor-input terminals 4 and 5.
SE-400
SE-704
RMT1
REMOTE
TEST 9
8
1
5
3
11 12
RMT2
L
L
N
N
L1
L1
OP1 OP2
L2
L2/N
FROM
POWER
SOURCE
LOAD
S1 S2
45
SE-CS30
11
10
R1
R2
R1 = 10 , 10 W, 1%
R2=0.1 ,10W,1%
I = 1/10 SE-400 SETTING
W
W
TEST
I
TEST
FIGURE 7. Earth-Fault-Test Circuit.
TABLE 2. EARTH-FAULT-TEST RECORD
DATE TEST RESULTS
Retain this record for the authority having jurisdiction.

Startco Engineering Ltd. Page 12
SE-704 Earth-Leakage Monitor Rev. 0
Pub. SE-704-M, January 18, 2008.
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