Download SE-400 Ground-Fault-Relay Test Unit Manual Rev 1-A

3714 Kinnear Place
Saskatoon, SK
Canada
S7P 0A6
Ph: (306) 373-5505
Fx: (306) 374-2245 www.littelfuse.com/relayscontrols
SE-400 MANUAL
GROUND-FAULT-RELAY TEST UNIT
Revision 1-A-072115
LITTELFUSE STARTCO
GROUND-FAULT-RELAY TEST UNIT SE-400
AMPERES
THERMAL
LIMIT
USE SWITCHES LABELLED AMPERES TO SET
MAGNITUDE (0.5 TO 9.9 A) OF OUTPUT CURRENT.
USE SWITCHES LABELLED SECONDS TO SET
DURATION (0.1 TO 9.9 s) OF OUTPUT CURRENT.
PRESS TEST TO INITIATE OUTPUT CURRENT.
DISPLAY INDICATES MAGNITUDE OF OUTPUT
CURRENT FOR DURATION OF OUTPUT.
SET SWITCHES LABELLED SECONDS TO 0.0 FOR
MANUAL CONTROL OF OUTPUT DURATION.
PUSH TEST TO SWITCH OUTPUT ON OR OFF.
AMPERES
2
SECONDS
4
3
0.5
TO
9.9
0
0.1
TO
9.9
TEST
Copyright © 2015 by Littelfuse Startco
All rights reserved.
Document Number: PM-1605-EN
Printed in Canada.
SE-400 Ground-Fault-Relay Test Unit
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Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
TABLE OF CONTENTS
SECTION
PAGE
1
2
General ................................................................. 1
Operation ............................................................. 1
2.1 Front-Panel Controls ............................................. 1
2.1.1 Amperes ..................................................... 1
2.1.2 Seconds ...................................................... 1
2.1.3 Test ............................................................ 1
2.2 Indication .............................................................. 1
2.3 Thermal Limit ....................................................... 1
3
Installation ........................................................... 1
4
Test Procedure .................................................... 1
5
Troubleshooting .................................................. 1
6
Technical Specifications...................................... 4
7
Ordering Information ......................................... 4
8
Warranty ............................................................. 4
Appendix A SE-400 Revision History ........................... 5
LIST OF FIGURES
FIGURE
1
2
3
PAGE
SE-400 Outline and Mounting Details .................. 2
Panel-Mounting Procedure.................................... 3
Typical Connection Diagrams............................... 3
DISCLAIMER
Specifications are subject to change without notice.
Littelfuse Startco is not liable for contingent or
consequential damages, or for expenses sustained as a
result of a malfunction, incorrect application, or incorrect
adjustment.
Page ii
Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
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Rev. 1-A-072115
Page 1
Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
1. GENERAL
3. INSTALLATION
The SE-400 is an ac current source with a
programmable output. The magnitude and duration of
the output can be selected with front-panel switches so
that ground-fault-relay coordination can be confirmed at
the push of a button.
The current output is transformer isolated from supply
voltage.
SE-400 outline and mounting details are shown in
Fig. 1. Panel-mounting procedures are shown in Fig. 2.
Connect L1 and L2 to supply voltage using L2 as N.
Connect ground terminal 1 ( ) to ground. Loop an
output conductor through the windows of the groundfault CT's connected to the ground-fault relays under test.
Connect one end of the output conductor to terminal 1
(OP1) and the other end to terminal 12 (OP2). For
output-conductor lengths under 40 ft, use 14 gauge wire.
For output-conductor lengths over 40 ft and up to 80 ft,
use 12 gauge wire.
If remote operation is required, connect a normally
open momentary contact to terminals 8 and 9 (RMT1 and
RMT2). Low-level contacts are recommended.
Typical connection diagrams are shown in Fig. 3.
2. OPERATION
2.1 FRONT-PANEL CONTROLS
2.1.1 AMPERES
The AMPERES switch has four push buttons and a
two-digit numeric indicator to adjust current output to
the desired value. The range is 0.5 to 9.9 A. If a value
below 0.5 is selected, there will be no output.
2.1.2 SECONDS
The SECONDS switch has four push buttons and a
two-digit numeric indicator to adjust output duration.
The range is 0.1 to 9.9 s, or select 0.0 for continuousoutput operation.
2.1.3 TEST
Press TEST for an output burst of the magnitude and
duration selected by AMPERES and SECONDS. Press
TEST again to stop a continuous-output operation.
2.2 INDICATION
The two-digit LED display indicates the magnitude of
the output current for the duration of the output burst.
The centre decimal point serves as a supply voltage
indicator. A decimal point on the right side of the
display is used to indicate a thermal-limit condition.
2.3 THERMAL LIMIT
When the SE-400 is used in the continuous-output
mode, the internal circuit temperature can reach the
thermal-limit temperature. To prevent damage to the
SE-400, the current output is disabled and the thermallimit indicator turns on. The output remains disabled
until the temperature has fallen to a safe level, at which
time the thermal-limit indicator turns off and the output
is enabled.
4. TEST PROCEDURE
 Set the required output current level0.5 to 9.9 A.
The recommended test current is 120% of the groundfault trip level of the device being tested.
 Set the output duration0.1 to 9.9 s or 0.0 for push-on
push-off operation.
 Press the TEST button. The ground-fault unit(s) being
tested should trip.
5. TROUBLESHOOTING
Problem:
 No current output when the TEST button is pressed.
Possible Causes:







Loose output connections.
Resistance of the output wire is too high.
VA requirement of the load is too high.
Current is set to less than 0.5 A.
No supply voltage.
Thermal limit exceeded.
Power-supply fuse F1 open.
Troubleshooting:
 Check the SE-400 operation by connecting a short
length of wire across the output terminals and
pressing the TEST button.
 If using a remote test switch, check remote switch
operation and connection to the SE-400.
Page 2
Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
3.4
(0.13)
3.2
(0.12)
139.7
(5.50)
104.0
(4.09)
91.7
(3.61)
LITTELFUSE STARTCO
GROUND-FAULT-RELAY TEST UNIT SE-400
1
2
3
4
5
6
7
8
9
10
11
12
212.7
(8.37)
218.4
(8.60)
F1
AMPERES
L1
L2
THERMAL
LIMIT
USE SWITCHES LABELLED AMPERES TO SET
MAGNITUDE (0.5 TO 9.9 A) OF OUTPUT CURRENT.
R MT 1
R MT 2
OP 1
OP2
USE SWITCHES LABELLED SECONDS TO SET
DURATION (0.1 TO 9.9 s) OF OUTPUT CURRENT.
PRESS TEST TO INITIATE OUTPUT CURRENT.
DISPLAY INDICATES MAGNITUDE OF OUTPUT
CURRENT FOR DURATION OF OUTPUT.
SET SWITCHES LABELLED SECONDS TO 0.0 FOR
MANUAL CONTROL OF OUTPUT DURATION.
PUSH TEST TO SWITCH OUTPUT ON OR OFF.
AMPERES
2
SECONDS
4
3
0.5
TO
9.9
0
0.1
TO
9.9
TEST
PANEL THICKNESS
1.6 (0.06) TO 4.8 (0.19)
NOTES:
M4 OR 8-32 TAP
(NOTE 2)
6.4
R=2. 2 (0.09)
1. DIMENSIONS IN MILLIMETRES
(INCHES).
2.5
(0.10)
2.5
(0.10)
2.5
(0.10)
195.0
(7.68)
200.0
(7.87)
212.7
(8.37)
203.2
(8.00)
2. MOUNTING SCREWS:
M4 x 10 OR 8-32 x 0.375.
(0.25)
98.4
(3.87)
93.3
(3.67)
76.2
(3.00)
2.5
(0.10)
63.5
(2.50)
5.0
(0.20)
14.1
(0.56)
FRONT VIEW
SIDE VIEW
REAR VIEW
REAR PANEL
OUTLINE
SURFACE MOUNT
FIGURE 1. SE-400 Outline and Mounting Details.
R=4. 8 (0.19)
MAXIMUM
8.2
(0.32)
8.2
(0.32)
PANEL-MOUNT CUTOUT
6.4
(0.25)
2.5
(0.10)
BEZEL
OUTLINE
Page 3
Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
STEP 1
STEP 2
1
STEP 3
1
2
3
4
5
6
7
8
9
10
11
12
2 L1
3
4 L2
5
6
T1
7 R MM T 2
8 R
9
1
1 0 1 O PP 2
1 2 O
1
1
2
3
4
5
6
7
8
9
10
11
12
L1
L2
R MT 1
R MT 2
OP 1
OP2
L1
L2
R MT 1
R MT 2
OP 1
OP2
THE SE-400 MAY BE PANEL MOUNTED WITHOUT
DISASSEMBLY.
NOTE: REMOVE PLUG-IN TERMINAL BLOCK BEFORE
INSTALLING SE-400 THROUGH PANEL.
FIGURE 2. Panel-Mounting Procedure.
SE-CS30
NEUTRAL
FROM
POWER
SOURCE
LOAD
TO SE-330
4
NGR
L
N
11
3
5
OP1
REMOTE
TEST
9
12
R1 L
L1
L2
1
8
OP2
N
ITEST
TO SENSING
RESISTOR
TERMINAL N
SE-400
11
10
L
RMT2
S1 S2
L1
L2/N
N
3
5
OP1
1. FOR DEVICES WITH LOWER TRIP LEVELS SUCH AS THE
SE-704 USE THE CIRCUIT AT RIGHT. RESISTORS R1 AND
R2 WILL LOWER TEST CURRENT TO 10% OF SE-400 SETTING.
2. FOR A TEST CURRENT HIGHER THAN 9.9 A, USE MULTIPLE
OUTPUT-CONDUCTOR WRAPS THROUGH THE CT WINDOW.
FIGURE 3. Typical Connection Diagrams.
REMOTE
TEST
8
9
OP2
L1
L2
1
NOTE:
SE-704
R2
11
RMT1
5
SE-400
RMT1
RMT2
R1 = 1 Ω, 10 W, 1%
R2 = 0.1 Ω, 10 W, 1%
ITEST = 1/10 SE-400 SETTING
12
Page 4
Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
6. TECHNICAL SPECIFICATIONS
Supply :
120 Vac ............................... 80 VA, 120 Vac,
(+12, -30%), 50/60 Hz
240 Vac ............................... 80 VA, 240 Vac,
(+12, -30%), 50/60 Hz
Fuse Rating (F1) ....................... 1 A, 250 Vac
Fuse Part Number ..................... Littelfuse 313.001 or
Bussman AGC1
Output:
Current Setting .................... 0.5 to 9.9 A,
0.1-A increments
Duration Setting .................. 0.1 to 9.9 s,
0.1-s increments
or continuous
Maximum Burden ............... 0.13 ohms
Voltage ............................... 5.0 Vac maximum
Duty Cycle at 25°C (77°F):
12 VA............................... Continuous
34 VA Maximum ............. 15 minutes ON
30 minutes OFF
Accuracy ............................. ± 3%
PWB Conformal Coating ......... MIL-1-46058 qualified,
UL QMJU2 recognized
Dimensions:
Height ................................. 212.7 mm (8.4”)
Width .................................. 104.0 mm (4.1”)
Depth .................................. 142.9 mm (5.6”)
Shipping Weight ....................... 2.2 kg (4.8 lb)
Environment:
Operating Temperature ....... -40 to 60C (-40 to
140°F)
Storage Temperature........... -55 to 80C (-67 to
160°F)
7. ORDERING INFORMATION
SE-400-
BLANK – 120-Vac Supply
02 – 240-Vac Supply
SE-410 ......................................... Selector Switch
SE-400IRC .................................. Impact Resistant Case
8. WARRANTY
The SE-400 Ground-Fault-Relay Test Unit is warranted
to be free from defects in material and workmanship for a
period of five years from the date of purchase.
Littelfuse Startco will (at Littelfuse Startco’s option)
repair, replace, or refund the original purchase price of an
SE-400 that is determined by Littelfuse Startco to be
defective if it is returned to the 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. Littelfuse Startco does not warrant products repaired
or modified by non-Littelfuse Startco personnel.
Page 5
Rev. 1-A-072115
SE-400 Ground-Fault-Relay Test Unit
MANUAL
RELEASE DATE
July 21, 2015
APPENDIX A
SE-400 REVISION HISTORY
MANUAL
PRODUCT REVISION
REVISION
(REVISION NUMBER ON PRODUCT LABEL)
1-A-072115
MANUAL REVISION HISTORY
REVISION 1-A-072115
SECTION 5
Fig. 3 updated.
SECTION 6
Voltage and accuracy specifications added.
APPENDIX A
Revision history added.
PRODUCT REVISION HISTORY
PRODUCT REVISION 05B
Current release.
05B
SE-400 Ground-Fault-Relay Test Unit
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Rev. 1-A-072115