BA9040 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Monitoring technique

Monitoring technique
Asymmetry relay BA 9040, MK 9040N
varimeter
· According to IEC 255, EN 60 255, VDE 0435 part 303
· Recognition of
- voltage asymmetry
- phase failure
- voltage feedback
- optionally with phase sequence recognition
· Optionally with adjustable response delay
· Insensitive against
- symmetric harmonics up to K-factor K 20 %
· 2 LED displays for power supply and state of contact
· BA 9040: width 45 mm
MK 9040N: width 22,5 mm
BA 9040
MK 9040N
Function diagram
Asym. [%] _asymmetry
100
setting value
U
L1
U
L2
U
L3
BA9040 ^11-14
MK9040N 11-12
11-14
/001
11-12
11-14
/010
11-12
tv
11-14
/011
11-12
tv
Circuit diagram
L1 L2 L3 11 21
L1
11
21
L3
L2
12 14 22 24
12 14 22 24
M7353_c
BA 9040.12
phase failure
phase
sequence
t
Approvals and marking
*
Canada / USA
* only for BA 9040 (see variants)
Applications
Monitoring three-phase mains for voltage asymmetry, phase failure or
incorrect phase sequence, e.g. in elevators, escalators, crane systems
etc.
t
Indications
upper LED:
lower LED:
t
Technical data
on when supply voltage connected
on when output relay energized
Input
t
Nomianl voltage U_N:
3 AC 400 V
Voltage range:
0,8 ... 1,1 U_N
Nominal consumption:
BA 9040:
approx. 4,8 VA
MK 9040N:
7 VA
Nominal frequency:
50 / 60 Hz
Frequency range:
45 ... 65 Hz
Temperature influence:
< 0,05 % / K
Frequency influence:
< 0,02 % / Hz
Resistance of harmonics
tv
symmetric:
K-factor K 20 %
tv
M7084_a
L1 L2 L3
Setting ranges
Setting range:
Repeat accuracy:
Release ratio:
Voltage feedback
recognition:
L1
11
21
L3
L2
12 14 22 24
11 12 14
21 22 24
MK 9040N.12
M8482_a
Time delay t_v
BA 9040:
MK 9040N:
Output
Contacts
Response/release time:
BA 9040:
MK 9040N:
Thermal current I_th:
5 ... 15 % voltage asymmetry
£ 0,5 %
< 4 % U_N
up to 100 % - setting value,
e.g. when setting value = 5 %
asymmetry, 100 % - 5 % = 95 %
Recognition of voltage feedback
up to 95 %
0,5 ... 5 s
0,5 ... 10 s
2 changeover contacts
£ 1 s / £ 250 ms
£ 1,5 s / £ 250 ms
6 A (see continuous current limit
curve)
All technical data in this list relate to the state at the moment of edition. We reserve the right
for technical improvements and changes at any time.
1
BA 9040, MK 9040N / 19.11.03 d