Voltage monitoring in 3-phase mains • Multifunctions monitoring relays
Meassuring circuit data |
|
Functions |
UNDER, UNDER+SEQ, WIN, WIN+SEQ |
monitoring of phase sequence, phase failure and asymmetry |
|
timing adjustment for tripping delay |
|
Time intervals (timing adjustment) |
tripping delay (0,1...10 s) |
LED indicator |
green LED, red LED |
Meassuring circuit |
|
• terminals |
(N)-L1-L2-L3 |
• measuring variable |
AC sinus, 48...63 Hz |
• measuring input |
3(N)~ 400/230 V |
• overload capacity |
3(N)~ 600/346 V |
• swiching threshold Us |
max:- 0,2 < Un < 0,3 min.: -0,3 < Un < 0,2 |
• asymmetry |
5...25% |
Input circuit |
|
Supply voltage U |
12 … 400 V AC; terminals A1-A2 |
Rated power consumption |
2,0 VA / 1,5 W |
Rated frequency |
as per the specification of TR2 supply transformer |
Output circuit |
|
Number and type of contacts |
2 C/O - changeover |
Rated load AC1 |
5 A / 250 V AC |
Max. breaking capacity AC1 |
1 250 VA |
Insulation |
|
Rated surge voltage |
4 000 V AC |
Overvoltage category |
III PN-EN 60664-0 |
Insulation pollution degree |
3 PN-EN 60664-1 |