|
1.Features:
- An electronic current-type voltage transformer, built-in IC amplifier inside,
high accuracy;
- Fully-encapsulated, strong mechanical and environmental endurance, strong
dielectric strength, safe and reliable;
- Light in weight, small in size, being able to be directly soldered on PCB,
elegant outline
2.Ambient Conditions
- Ambient temperature: -55...+85°C;
- Relative humid <90% при 40°C;
- Atmospheric pressure: 860~1060mbar (650~800mmHg approximately);
3.Range of working Frequency: 20Hz~10kHz
4.Insulation Rating: Class F (155°C).
5.Safety features:
- Dielectric resistance: >1000MOm in normal condition;
- Insulation withstand voltages: 2000V 50Hz/1min;
- Fire retardancy: In conformity with UL94-Vo
6.Outline Drawing, Installation Dimension (Upper right Fig.) and Function of
Pins
| Pin No. |
1-3 |
6 |
7 |
8 |
9 |
10 |
| Function |
input |
+B |
adjusting |
G |
-B |
output |
7.Models and Technical parameters as in the following table:
| Model |
Rated
Input
Voltage |
Rated
Output
Voltage |
Phase
Shift |
Non
Linearity |
Isolated
Voltage |
Working
Power
Supply |
| TVS1908-01 |
380Vrms |
5Vrms |
<30` |
<0.3% |
>2000V |
±15V~22V |
| TVS1908-02 |
220Vrms |
5Vrms |
<30` |
<0.3% |
>2000V |
±15V~22V |
| TVS1908-03 |
100Vrms |
5Vrms |
<30` |
<0.3% |
>2000V |
±15V~22V |
8.Application Instructions:
- 1-3 input Pins must be connected in parallel with the loop of the measured
current circuit. Pin 6 connected to +B. Pin 9 connected to –B, Pin 8 connected
to ground, Pin10 is output terminal. Pin 7 is a terminal for adjusting.
- While input AC moving between 0~Rated Voltage, the output between Pin 10
and Pin 8 is 0~5V and linearly correspondent.
- Phase shift can be compensated by connecting a capacitor between Pin 7 and
Pin 10 and compensated to 15’ when choosing a capacitor of 0.033μF
- Output voltage can be changed by connecting a resistor between Pin 7 and
Pin 10 and it will be as bellow if the resistor connected is R and input rated
voltage:
9.Attention
- Pin 8 must be connected to ground, otherwise the accuracy will be influenced;
- If want to change output AC signal to DC signal, the method of absolute value
rectifying can be applied to carry out. Otherwise, as the tube voltage drop of
diode exists, the linear correspondence will be damaged;
- Increasing working voltage between Pin 6 and Pin 9 can extend scope of measuring,
contrariwise it will reduce the scope;
- If the output and input parameters are not suitable for you, we can make
it as request.
|
