TNT Filter Services

Tap changers exist in two primary types, no-load tap changers (NLTC), which must be de-energized before the turn ratio is adjusted, and on-load tap changers (OLTC), which may adjust their turn ratio during operation. The tap selection on any tap changer may be made via an automatic system, as is often the case for OLTC, or a manual tap changer, which is more common for NLTC. Automatic tap changers can be placed on a lower or higher voltage winding, but for high-power generation and transmission applications, automatic tap changers are often placed on the higher voltage (lower current) transformer winding for easy access and to minimize the current load during operation.

Additional Information:

• Item Code: TNT19
• Production Capacity: 100
• Delivery Time: Immediate

OLG Make Drive Motor Belt The OLG make On-Load Tap Changer (OLTC) belt is a durable, 3-phase, motor-operated drive component designed for power transformers, specifically for managing tap changes in 11kV/433V systems. These belts are often made of rubber or high-quality material, typically designed for industrial applications with a thickness of around 10 mm. They are crucial for maintaining proper tap changer functionality in 500 kVA (and higher) transformers. 

Additional Information:

• Item Code: TNT24
• Production Capacity: 100
• Delivery Time: Immediate