The TPMO/DO Switch, commonly referred to as the Triple Pole Manually Operated (TPMO) switch or Air Break (A.B.) switch, is specifically designed for use in high-tension (HT) outdoor power lines. This gang-operated switch features three poles that are simultaneously controlled by a single manual handle, ensuring synchronous operation for all phases. It plays a critical role in electrical distribution networks by providing a reliable means of manually isolating power circuits during maintenance work or fault conditions. Its robust construction ensures durability and safety in harsh outdoor environments, making it an indispensable component in managing and maintaining reliable HT power line operations.
Key Features
| Features | Description |
|---|---|
| Type | Triple Pole Manually Operated (TPMO) / Air Break (A.B.) Switch |
| Operation | Gang-operated with single handle controlling all three poles simultaneously |
| Application | Manual switching on/off of high-tension (HT) outdoor power lines |
| Pole Configuration | Triple pole for three-phase power isolation |
| Environment | Designed for outdoor use with robust construction |
| Functionality | Isolates sections of power lines for maintenance or fault clearance |
| Manual Operation | Ensures safe and reliable disconnection without automation |
| Durability | Engineered for long-term use in harsh outdoor conditions |
| Safety | Provides safe isolation points for maintenance personnel |
| Attributes | Description |
|---|---|
| Switch Type | Triple Pole Manually Operated (TPMO) / Air Break Switch |
| Number of Poles | 3 (Triple Pole) |
| Operation Method | Manual, gang-operated via single handle |
| Installation Environment | Outdoor high-tension (HT) power lines |
| Rated Voltage | Typically suited for HT voltage levels (specific rating depends on manufacturer standards) |
| Rated Current | Varies by product model - suitable for high voltage distribution currents |
| Material | Corrosion resistant, weatherproof insulative materials and conductive metals |
| Mechanical Endurance | High durability for frequent manual operations |
| Safety Features | Clear isolation indication and interlocking capability (subject to model) |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Yes, the TPMO/DO switch is specifically designed as a triple pole device to simultaneously isolate all three phases of a high-tension power line.
No, this is a manually operated switch that functions without the need for electrical power, relying solely on mechanical gang operation.
Yes, the TPMO/DO switch is constructed using weatherproof and corrosion resistant materials making it ideal for outdoor high voltage environments.
Its main function is to manually isolate a section of the power line to allow safe maintenance or fault clearance by interrupting current flow on all three poles simultaneously.
While the basic design is consistent, specific rated voltage and current values may vary by manufacturer and model and should be confirmed before procurement.
Country Of Origin: India
A TPMO (Triple Pole Manually Operated) switch, also known as an A.B. (Air Break) switch, is a type of outdoor switch used in high-tension (HT) power lines for manually switching on/off the current flow. It's a gang-operated switch, meaning all three poles are operated simultaneously by a single handle. These switches are crucial for isolating sections of the power line for maintenance or in case of faults.
