PRODUCTS
Key Features/Application:
l Suitable for power supply to 3-Terminals Voltage Regulator in anti-tampering electricity meter etc.
l Wide rated primary current
l Power-frequency Withstand Voltages: 4000V/1min, Insulation resistance: ≥1000MΩ/500Vdc;
l Operating Temperature: -40℃～85℃.
Only few typical products of this series are shown in the following pages. EHC is capable of making other customized design and manufacturing per user request.
Specifications:
Model | Input Current/Output Voltage | Output Voltage | Rated Burden |
0.5(120)A/≥4.6V | 0.5A/≥4.6V | 5.1KΩ | |
1(120)A/≥3.7V | 1A/≥3.7V | 1KΩ | |
1(40)A/≥3.7V | 1A/≥3.7V | 1KΩ |
Typical Application：
As shown in Figure 1, when the incoming and return line currents are not equal, for example, the zero line is disconnected, and the secondary winding of ehc-vct series current transformer generates the power supply for the normal operation of the watt hour meter, which can meet the power supply needs of the three terminal voltage regulator and can be used to prevent power stealing.
0.5A/＞3.2V
