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S T A R T C O S E - 3 3 0 A U E N G I N E E R I N G L T D . Copyright 2007 Startco Engineering Ltd. All rights reserved. Publication: SE-330AU-M Document: S95-C330-0A000 Printed in Canada.
6.3 Current Sensors............21 ISCLAIMER Ordering Information ......... 21 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.
TRIP LEVEL setting, and if NER current is less than the magnitude of charging current is typically ½ A per 5% of the CT rating, the SE-330AU will trip on resistor 1,000 kVA on low-voltage systems and 1 A per fault.
12 seconds and earth-fault current is less than trip level according to the guidelines in Section 1.1. 5% of the CT rating, the SE-330AU will trip on resistor Typical values are shown in Table 1. fault. If the resistor-fault circuit is tripped and the neutral...
When an open CT circuit is detected for 2 seconds, the Set switch S4 to select latching or non-latching resistor- SE-330AU will trip on earth fault and the diagnostic LED fault-circuit operation. See Section 2.4 will flash the CT-Detection-Error code. See Section 2.8.
Outline and panel-cutout dimensions for the SE-330AU CPU reset was caused by a software interrupt. are shown in Fig. 4. To panel mount the SE-330AU, insert it through the panel cutout and secure it with four Illegal-Opcode Trip (6 short): 8-32 locknuts and flat washers (included).
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SE-330AU Neutral-Earthing-Resistor Monitor Rev. 0 Outline dimensions and mounting details for surface mounting the SE-330AU are shown in Fig. 5. Fasten the optional SE-330-SMA Surface-Mount Adapter to the mounting surface and make connections to the adapter terminal blocks. Follow Fig. 5 instructions to mount or remove the SE-330AU.
VOLTAGE BETWEEN SENSING-RESISTOR TERMINALS R AND G IS LIMITED TO 100 V BY INTERNAL CLAMP. ALTERNATE CT LOCATION. SEE SECTION 3.4 FOR ISOLATED-EARTH CONNECTION. RELAY CONTACTS SHOWN WITH SE-330AU SPGA DE-ENERGIZED. RS232 COM NOTE 10 OPTIONAL N.C. AVAILABLE. LOOP-POWERED CONNECTION USES TERMINALS 19 AND 20 ONLY.
THIS CONNECTION MAY BE REMOVED FOR DIELECTRIC STRENGTH TESTING. ENSURE THAT THE JUMPER IS INSTALLED AFTER TESTING. ON REVISION 1 UNITS, SCREW IS NOT PRESENT AND ENCLOSURE IS ELECTRICALLY CONNECTED TO TERMINAL G. FIGURE 6. ER-600VC Sensing Resistor. Pub. SE-330AU-M, May 16, 2007...
THAT THE JUMPER IS INSTALLED (18.00) AFTER TESTING. ON REV 0 & 1 UNITS SCREW IS NOT MOUNTING DETAIL PRESENT AND BASE IS ELECTRICALLY CONNECTED TO TERMINAL G. REVISION 1, 030507 FIGURE 7. ER-5KV Sensing Resistor. Pub. SE-330AU-M, May 16, 2007...
(2.21) (0.22) (4.33) (0.22) FRONT SIDE NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES). 2. MOUNTING SCREWS: M4 OR 8-32. 3. PRESS MOUNTING FEET IN PLACE USING INSTALLATION TOOL PROVIDED. FIGURE 11. EFCT-1 Sensitive Earth-Fault Current Sensor. Pub. SE-330AU-M, May 16, 2007...
SIDE NOTES: MOUNTING FOOT DIMENSIONS IN MILLIMETRES (INCHES). INSTALLATION TOOL PRESS MOUNTING FEET IN PLACE USING INSTALLATION TOOL PROVIDED (DETAIL ‘A’) MOUNTING SCREWS: M4 OR 8-32. DETAIL ‘A’ FIGURE 12. SE-CS30-70 Sensitive Earth-Fault Current Sensor. Pub. SE-330AU-M, May 16, 2007...
MOUNTING FOOT INSTALLATION DIMENSIONS IN MILLIMETRES (INCHES). TOOL PRESS MOUNTING FEET IN PLACE USING INSTALLATION TOOL PROVIDED (DETAIL ‘A’) MOUNTING SCREWS: M4 OR 8-32. DETAIL ‘A’ FIGURE 13. EFCT-26 and SE-CS30-26 Sensitive Earth-Fault Current Sensors. Pub. SE-330AU-M, May 16, 2007...
ONNECTION Isolated earthing can prevent an earth potential rise NEUTRAL (EPR) from being transferred to remote equipment. If the G terminals on the sensing resistor and the SE-330AU are SENSING RESISTOR connected to isolated earth, the SE-330AU will be STATION TRIP CIRCUIT exposed to the EPR.
The RS-232 port can be used to upgrade the 4.1 L OCAL OMMUNICATION SE-330AU firmware. Upgrade procedure: The SE-330AU RS-232 port is designed for use with 1) Remove supply voltage. firmware-upgrade and system-monitoring software running 2) Set switch S8 to UPGRADE. on a PC.
The SE-330AU was tripped by a signal from network communications. DIAGNOSTIC LED flash code = L-S-S-L…* Press RESET to clear the trip. CT-Detection-Error Trip The CT connection to the SE-330AU is open. Correct the problem and DIAGNOSTIC LED flash code = L-S-S-S-L…* press RESET. A/D-Converter-Error Trip An A/D-converter error was detected.
Applying the test voltage to the R and G terminals will OTE: Program for PDA damage the SE-330AU and the ER sensing resistor. The V TRIP LEVEL is the trip voltage at terminal N, not terminal R. * Available at www.startco.ca.
A for a duration of 0.1 to 9.9 seconds. Fig. 17b shows R and N. a test circuit using a Startco SE-100T Earth-Fault- • PASS: Resistance should be between 19.6 and 20.4 kΩ Relay Tester. The SE-100T provides a test current of for 20-kΩ...
Startco Engineering Ltd. Page 24 SE-330AU Neutral-Earthing-Resistor Monitor Rev. 0 TABLE 3. EARTH-F AULT ECORD ESULTS Retain this record for the authority having jurisdiction. Pub. SE-330AU-M, May 16, 2007...
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