High-Efficiency Oil Immersed BTA/HTA Power Transformer for Distribution Systems

Oil Immersed BTA/HTA Transformer

Product Description：

The 33kV High Voltage Electrical Distribution Standard Fuse Cutout is designed for primary overhead distribution networks and pole-mounted transformers. It provides reliable short-circuit and overload protection, ensuring safe isolation of faulty sections. The unit features durable porcelain or polymer insulation, stable arc-extinguishing performance, and a drop-out mechanism that offers an unmistakable visual open point after operation.

Product Advantages：

• High-strength insulation suitable for 33kV primary networks

• Fast fault isolation to prevent transformer and line damage

• Drop-out design ensures clear visual disconnection

• Corrosion-resistant hardware for long outdoor service

• Compatible with different fuse links for flexible protection levels

• Excellent resistance to humidity, UV, contamination, and temperature changes

Application Scenarios：

1. 33kV Primary Distribution Feeders：Mounted on poles along the feeder; the fuse melts during faults, causing the fuse holder to drop and isolate the section.

2. Pole-Mounted Distribution Transformers：Installed on the transformer HV side to prevent damage from short circuits or overloads.

3. Branch Line/Tap Point Protection：Used at branch points; downstream faults trigger only the tap cutout, keeping the main line energized.

4. Industrial HV Outdoor Installations：Applied in outdoor HV supply circuits for pumps, switchgear, or plant distribution panels.

5. Rural Electrification and Long-Distance Lines：Distributed along long lines to improve reliability by quickly isolating faulted segments.

Safety & Quality Assurance：

Each unit undergoes tests for power-frequency withstand voltage, mechanical endurance, contact resistance, temperature cycling, and fuse-link compatibility according to IEC/ANSI standards.

FAQ：

Q1: What fuse links can be used?

A1: Standard 6A–200A links for 33kV distribution.

Q2: Does it support polymer or porcelain options?

A2: Yes, both types are available.

Q3: Is visual inspection easy after operation?

A3: Yes, the drop-out design provides a clear visible break.