ABB JDZX22-35W-B

Here is the professional introduction of the **ABB JDZX22-35W-B** voltage transformer:

### **1. Product Overview**
The ABB JDZX22-35W-B is a **35kV epoxy resin cast voltage transformer**, part of ABB's medium-voltage power measurement equipment series, specifically designed for voltage measurement and protection in power systems.

### **2. Key Specifications**
| Feature             | Specification               |
|---------------------|----------------------------|
| **Rated Voltage**   | 35kV/√3                    |
| **Rated Secondary Voltage** | 100V/√3 (residual winding 100V/3) |
| **Accuracy Class**  | 0.2/0.5/3P (composite error ≤3%) |
| **Rated Burden**    | 50VA (measuring winding)<br>100VA (protection winding) |
| **Insulation Level**| 40.5kV power frequency withstand<br>95kV lightning impulse |
| **Protection Class**| IP54 (dustproof and splash-proof) |
| **Ambient Temperature** | -25°C ~ +40°C      |

### **3. Technical Features**
- **Fully Enclosed Structure**  
  Vacuum cast with epoxy resin, moisture and pollution resistant, suitable for outdoor installation.

- **Dual Winding Design**  
  - Measuring winding (0.2/0.5 class)  
  - Protection winding (3P class) with residual voltage output.

- **Safe and Reliable**  
  Built-in overvoltage protector, compliant with IEC 61869 standard.

### **4. Typical Applications**
- **Substation Metering**  
  Energy metering systems (requires 0.2 class meters).

- **Protection Relaying**  
  Ground fault detection (via open-delta winding).

- **Industrial Power Distribution**  
  35kV distribution system monitoring in steel plants, mines, etc.

### **5. Installation Guidelines**
- Installation tilt angle ≤15°
- Secondary side must be reliably grounded
- Avoid parallel routing with power cables (minimum spacing >300mm)

### **6. Model Decoding**
- **JDZX22**: Single-phase cast type with residual winding
- **35**: Rated voltage 35kV
- **W**: Outdoor type
- **B**: Design version (enhanced insulation)

This product complies with GB/T 20840.3-2013 standard and can be used with ABB REL series protection relays. If you need this product, feel free to contact us!