DEEP SEA ELECTRONICS DSE8620 User Manual

DSE Model 8620 AMF Controller Operators Manual
41
4.1.6 GENERATOR CURRENT TRANSFORMERS
WARNING!:- Do not disconnect this plug when the CTs are carrying current.
Disconnection will open circuit the secondary of the C.T.’s and dangerous voltages may then
develop. Always ensure the CTs are not carrying current and the CTs are short circuit
connected before making or breaking connections to the module.
NOTE:- The DSE8620 module has a burden of 0.5VA on the CT. Ensure the CT is rated for
the burden of the DSE 8620 controller, the cable length being used and any other equipment
sharing the CT. If in doubt, consult your CT supplier.
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
51 CT Secondary for Gen L1
2.5mm²
AWG 13
Connect to s1 secondary of L1 monitoring CT
52 CT Secondary for Gen L2
2.5mm²
AWG 13
Connect to s1 secondary of L2 monitoring CT
53 CT Secondary for Gen L3
2.5mm²
AWG 13
Connect to s1 secondary of L3 monitoring CT
Connection to terminals 54 & 55
The function of terminals 54 and 55 change position depending upon wiring topology as follows :
Topology Pin
No
Description CABLE
SIZE
No earth fault measuring
54 DO NOT CONNECT
55
Connect to s2 of the CTs connected to
L1,L2,L3,N
2.5mm²
AWG 13
Restricted earth fault measuring
54
Connect to s2 of the CTs connected to
L1,L2,L3,N
2.5mm²
AWG 13
55
Connect to s1 of the CT on the neutral
conductor
2.5mm²
AWG 13
Un-restricted earth fault measuring
(Earth fault CT is fitted in the neutral to earth
link)
54
Connect to s1 of the CT on the neutral to
earth conductor.
2.5mm²
AWG 13
55
Connect to s2 of the CT on the neutral to
earth link.
Also connect to the s2 of CTs connected to
L1, L2, L3.
2.5mm²
AWG 13
4.1.7 MAINS CURRENT TRANSFORMERS
PIN
No
DESCRIPTION
CABLE
SIZE
NOTES
56 CT Secondary for Mains L1
2.5mm²
AWG 13
Connect to s1 secondary of L1 monitoring CT
57 CT Secondary for Mains L2
2.5mm²
AWG 13
Connect to s2 secondary of L2 monitoring CT
NOTE:- Take care to ensure correct polarity of the CT primary as shown overleaf. If in
doubt, check with the CT supplier.
NOTE: - Terminals 56 to 59 are not fitted to the 8610 series controller.

DEEP SEA ELECTRONICS DSE8620 Specifications

General

Brand	DEEP SEA ELECTRONICS
Model	DSE8620
Category	Controller
Language	English