Medium Voltage Protection Relay
AM2SE Series Ring Main Unit Protection Relay
OVERVIEW
AM2SE series ring main unit protection relay integrate protection and control, can realize 20KV and below voltage level power supply system for the safe operation and reliability of electric energy. Currently, it is widely used in power distribution systems such as substations, industrial and mining enterprises, hospitals, schools, commercial plazas and large buildings.
The protection device adopts advanced, mature and reliable protection principles and algorithms, with strong anti-interference performance, high reliability, flexible protection implementation methods, and redundant communication design. The device has 8-circuit switch quantity acquisition and 5-circuit relay output, which can be used with power monitoring software to realize unmanned terminal user substation distribution automation system.
VERSION
AM2SE-V Vertical Installation
AM2SE-H Horizontal Installation
MAIN PARAMETERS
Main function
[50/51] Three-stage overcurrent ;
[50N/51N]Zero-sequence overcurrent protection (3 stages earth fault);
[59]Overvoltage protection ;
[27]Under voltage protection ;
[81U]Under frequency ;
[26/63]Non-electricity Protection ;
Electrical parameter measurement: U,I,f,P,Q,PF,Ep,Eq,Es
|
Protection functions |
AM2SE- |
||
|
V |
H |
||
|
Overcurrent (3 stages,IDMT) |
■ |
||
|
Earth fault (3 stages,IDMT) |
■ |
||
|
Negative sequence overcurrent (2 stages,IDMT) |
■ |
||
|
Auto-reclose |
■ |
||
|
Overload (trip/alarm) |
■ |
||
|
Under frequency |
■ |
||
|
Post-accelerated overcurrent |
■ |
||
|
I0 Post-accelerated overcurrent |
■ |
||
|
Overvoltage(trip) |
■ |
||
|
Undervoltage (trip) |
■ |
||
|
Self-produced over zero-voltage (trip) |
■ |
||
|
Residual overvoltage (trip) |
■ |
||
|
FC block |
■ |
||
|
Trip and close circuit supervision (alarm) |
■ |
||
|
Non-electricity (trip/alarm) |
■ |
||
|
Undervoltage (alarm) |
■ |
||
|
Overvoltage (alarm) |
■ |
||
|
Residual overvoltage (alarm) |
■ |
||
|
PT supervision (alarm) |
■ |
||
|
Self-produced over zero-voltage (alarm) |
■ |
||
|
Rear ports |
V |
H |
|
|
RS485 |
■ |
||
|
Protocols |
V |
H |
|
|
Modbus serial |
■ |
||
|
IEC 60870-5-103 |
■ |
||
|
Measurement |
V |
H |
|
|
Electric parameter |
U,I,P,Q,PF,Fr,Ep,Eq,Es |
||
|
Input Current |
4 |
||
|
Input Voltage |
3 |
||
|
Logs and Records |
V |
H |
|
|
Fault recorder |
■ |
||
|
Sequence of event record |
■ |
||
|
Monitoring Functions |
V |
H |
|
|
Anti-pumping circuit |
Optional |
||
|
Remote control |
■ |
||
DIMENSION
AM2SE-V Cut-out dimensions
AM2SE-H Cut-out dimensions
PACKAGE
APPLICAITON
⚫ Switch cabinet for ring network connection, It can be circuit breaker cabinet, composite switch cabinet, or load switch and fuse combination switch cabinet. Usually SF6 load switch cabinet
PHOTO ON SITE
Metal Armored Central Removable Switchgear Installation
WIRING DIAGRAM
Main view
side view
hole view
WIRING
