1.Features:
① Vertical core, flexible installation, can be fixed on the busbar or on the bottom plate;
② The output is in the form of flexible wires, which is convenient for wiring at the engineering site.
2.Ambient Conditions
① Ambient temperature: -55℃~+85℃;
② Relative humidity: ≤90% at 40℃;
③ Atmospheric pressure: 860~1060mbar(about 650~800mmHg).
3.Operating Frequency Range: 20Hz~1kHz
4.Insulation Thermal Class:Class B grade ( 130 ℃ )
5.Safety Features:
① Dielectric resistance: >1000MΩ in normal condition;
② Insulation withstand voltages: 6000V 50Hz/1min;
③ Fire retardancy: In conformity with UL94-V0.
6. Outline Drawing, Installation Dimension and Coil Drawing :( tolerance ± 0.5mm )
7. Typical Application and Performance Parameters:
See the table below for performance parameters when applied as shown in Figure 3 :
Model | Rated Input Current | Rated Output Current | Rated Sampling Resistance R L | Rated Sampling Voltage | Phase Shift | Non-linearity | Linear Range |
TA3240-1 | 1 5 0A | 150mA | 12Ω | 1.8V | ≤15' | ≤0.5% | 5 times of the rated value |
TA3240-2 | 1 5 0A | 75mA | 48Ω | 3.6V | ≤15' | ||
TA3240-3 | 1 5 0A | 50mA | 108Ω | 5.4V | ≤15' |
This series of transformers is used for motor protection, soft start, and large current monitoring.
● Note:
a. In practical applications, the sampling resistance should be less than or equal to the rated value given in the above table, which will improve the nonlinearity and phase shift;
b. If the conversion ratio required by the user is different from the above, it can be customized according to the user's requirements.
8.Attention:
① Connect the primary winding of the current transformer in series with the measured current loop, and operate the secondary winding in near short-circuit mode.
② Do not allow the secondary winding of the current transformer to be open-circuited and do not install any fuse in the secondary circuit.