1. Why do power transformers not work in modern applications?
1.1 Main technical limitations
In solar, electrical and industrial systems, engineers often face:
● Absence of leaks
● Protection devices are not disabled
● Measures are unstable
The main reasons are obvious:
Traditional current transformers only measure variable current and cannot detect constant current leaks.
This is essential for:
● Current transformer for solar inverter
● Current transformer for EV charger
2. Why is it important to detect constant current leaks?
2.1 Safety and compliance requirements
Modern system requirements:
● 6mA constant current leak detection (electric vehicle load)
● Compliant with IEC 62752 / IEC 62955
Without constant current detection, the current transformer system can:
● Losing a Dangerous Defect
● Security Certification Error
3. What is a practical engineering solution?
3.1 Current Transformers + HYCA - 10 - PD
The effective methods are:
Current Transformer + Residual Current Detection Module HYCA - 10 - PD
Support HYCA-10 - PD :
● Variable current test: 20 - 30 mA
● DC current test: 3 - 6mA
● Fast response: ~ 50 ms
● Low power: 110 MW
● Temperature width: from -40°C to +85°C
This solves directly:
● How to detect DC leakage current in EV charger
4. What is the most effective solution?
4.1 High demand applications
● Charging electric vehicles - DC leakage safety
● Solar inverter → Leak monitoring
● Industrial panel → Stability detection under harmony
It is also widely used:
● Current transformer for energy meter in India
5. What should the engineer check before choosing?
5.1 Key points of choice
Reliable solutions for current transformers must:
● Support for AC + DC tests
● Response time < 100 ms
● Compliant with IEC standards
● It is easily integrated into the panel
6. Conclusion: What is the right approach?
6.1 Engineering proposal
For the modern system of India:
Independent current transformers are not enough.
The right solution is:
Current Transformer + HYCA - 10 - PD (RDC - PD Module)
This guarantees:
● Accurate detection
● Rapid protection
● Compliant with electric vehicle and solar energy standards
6.2 Are you ready to improve your system?
If you perform the following tasks:
● Solar Inverter System
● Electric vehicle charging infrastructure
● Industrial Control Panel
Contact us now to get the HYCA - 10 - PD solution to configure current transformers and get a competitive offer for your project in India.
Current Transformer Selection Guide for Solar Batteries, Electric Vehicle Charging and Industrial Applications in India
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975
Traditional current transformers only measure variable current and cannot detect constant current leaks.
