DHC78A Series Current Transformer
Feature：
1. Permalloy core，
2. High precision, good linearity；
3. Epoxy potting , Safe and reliable
4. Flame retardant (UL94- V0),
5. Environmental protection( EU RoHS).
6. Small, Compact Design
7. Easy to assemble and weld
More Choices
Describe
National standard gb 1208-2006；
Industry Standard jbt 10665-2006.
Use Temperature：-25℃-+85℃
Relative humidity：≤95%
Scope of application：
Suitable for instrumentation, etc., need to convert large current into
small current for precise measurement, Used for precision measurement or as electrical safety protection.
Notes：
If the load connected to the secondary of the transformer exceeds the rated load capacity,it may result in reduced accuracy or saturation. If you need to increase the load capacity and we can provide customized.
Size
Circuit schematic
Note: This schematic diagram is the basic working principle of the transformer. We can design the transformer sampling circuit for the customer.
Specification
| No | Items | Performance |
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| 1 | Model | DHC78AD1 | DHC78AD2 |
DHC78AF1 |
DHC78AF2 |
DHC78AZ1 |
DHC78AZ2 |
| 2 | Rated Input Current | 5A | 10A | 5A | 10A | 1A | 1A |
| 3 | Rated Output Current | 2.5mA | 5mA | 5mA | 10mA | 2.5mA | 2mA |
| 4 | Allow Overload Multiple | 1.2times | 2times | ||||
| 5 | Ratio | 2000:1 | 1000:1 | 400：1 | 500:1 | ||
| 6 | Ratio Difference | ≤0.2% | ≤0.5% | ≤1.0% | |||
| 7 | Phase Difference | ≤10´ | ≤30´ | ≤60´ | |||
| 8 | Accuracy Level | 0.2 | 0.5 | 1.0 | |||
| 9 | Linear Range | 0～120% | 0～200% | ||||
| 10 | Linearity |
≤0.2% |
≤0.5% |
≤1.0% |
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| 11 | Load Resistance |
20Ω |
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| 12 | Isolation Withstand Voltage |
3kV/2mA/1min | |||||
| 13 | Frequency Range |
20～20kHz(Test frequency: 50Hz) |
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| 14 | Working Temperature |
-25～85℃ |
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| 15 | Storage Temperature |
-40～90℃ |
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| 16 | Relative Humidity |
≤95% |
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Note: If there is no product suitable for your use in the above table, we can tailor the product according to your technical and structural requirements.
For more information about our products, welcome to contact us at any time!
