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參數資料
| 型號： | MK904012103AC440V60HZ |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Monitoring technique |
| 中文描述： | 監測技術 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 160K |
| 代理商： | MK904012103AC440V60HZ |
1
MK 9040N
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 / 19.11.03 d
Approvals and marking
Applications
Monitoring three-phase mains for voltage asymmetry, phase failure or
incorrect phase sequence, e.g. in elevators, escalators, crane systems
etc.
Indications
upper LED:
lower LED:
on when supply voltage connected
on when output relay energized
Technical data
Input
Nomianl voltage U
N
:
Voltage range:
Nominal consumption:
BA 9040:
MK 9040N:
Nominal frequency:
Frequency range:
Temperature influence:
Frequency influence:
Resistance of harmonics
symmetric:
3 AC 400 V
0,8 ... 1,1 U
N
approx. 4,8 VA
7 VA
50 / 60 Hz
45 ... 65 Hz
< 0,05 % / K
< 0,02 % / Hz
K-factor K 20 %
Setting ranges
Setting range:
Repeat accuracy:
Release ratio:
Voltage feedback
recognition:
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 %
Time delay t
v
BA 9040:
MK 9040N:
0,5 ... 5 s
0,5 ... 10 s
Output
Contacts
Response/release time:
BA 9040:
MK 9040N:
Thermal current I
th
:
2 changeover contacts
1 s / 250 ms
1,5 s / 250 ms
6 A (see continuous current limit
curve)
0
Function diagram
Circuit diagram
BA 9040.12
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.
11
21
14
24
12
22
M7353_c
L1 L2
11
L3
21
L1
L2
L3
14
12
24
22
Canada / USA
*
* only for BA 9040 (see variants)
Asym. [%]
100
setting value
U
U
U
L1
L2
L3
11-14
11-14
11-14
11-14
11-12
11-12
11-12
11-12
BA9040
MK9040N
/001
/010
/011
t
t
t
t
tv
tv
tv
tv
M7084_a
asymmetry
phase failure
phase
sequence
L1
22 24
L2
21
11
L3
14
12
M8482_a
21
11
L1
L2
L3
22
12
24
14
MK 9040N.12
BA 9040
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