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参数资料
| 型号： | 2100-115VAC |
| 元件分类： | 功率/信号继电器 |
| 英文描述： | POWER/SIGNAL RELAY, SPDT, MOMENTARY, 4000mW (COIL), 6A (CONTACT), 30VDC (CONTACT), DIN-RAIL MOUNT |
| 文件页数： | 9/10页 |
| 文件大小： | 953K |
| 代理商： | 2100-115VAC |
K8AB-VS
9
Checking Operation
Overvoltages
Gradually increase the input from 80% of the setting.
The input will equal the operating value when the input
exceeds the setting and the alarm indicator starts flashing.
Operation can be checked by the relay outputs that will
start after the operating time has passed.
Undervoltage
Gradually decrease the input from 120% of the setting and
check the operation using the same method as for
overvoltage.
Example: Overvoltage Operating Mode and an Operating Time of 5 s
Note:
K8AB-VS
@
output relays are normally operative.
Connection Diagram
How to Measure the Operating Time
Overvoltage
Change the input suddenly from 0% to 120% of the set
value and measure the time until the Unit operates.
Undervoltage
Change the input suddenly from 120% to 0% of the set
value and measure the time until the Unit operates.
Operating Adjustment Knobs
Use a screwdriver to turn the knobs. There is a stopper to
prevent the knob from turning any further once it has been
turned completely to the left or right. Do not force the knob
past these limits.
Detecting Current with a Current Splitter
An example of detecting an overload is shown below.
SDV-SH300/-SH500 (60-mV Rating)
Current terminal: M10 screw (SDV-SH300),
M12 screw (SDV-SH500)
Voltage terminal: M4 screw
A
B
C
D
E
SDV-SH750/-SH1000 (60-mV Rating)
Current terminal: M12 screw
Voltage terminal: M5 screw
A
B
C
D
E
5
Model
A
B
45
60
C
D
15
18
E
30
30
SDV-SH750
SDV-SH1000
175
175
130
135
Model
SDV-SH300
SDV-SH500
A
B
30
40
C
D
4
6
E
36
41
Resistor
4
5
130
160
110
120
Note:
Inquire about models with a rated current of 1,500 A or larger.
Questions and Answers
Q
Set value
Input voltage
Alarm indicator
Relay output
Flashing
Lit
5 s
200 VAC
0 to 300 V
V
A1
A2
±
C 200 V
Variable
autotransformer
Input terminals
Power supply
Cycle counter
Q
Q
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Q
Example:
Overload detection in a distribution switch
board installed in a power substation.
DC power
supply for
distribution
board
SDV-SH
shunt
K8AB-VS
(without polarity)
D
s
(
)
(+)
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