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!