一种用于35kV插拔式电压互感器试验的夹具
By designing a clamp for 35kV pluggable voltage transformers, and utilizing a combination structure of long connecting rods, short connecting rods, and pressure rods, the problem of high-voltage leakage caused by insecure fixing during voltage transformer testing was solved, achieving a safe and efficient testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOPEC NANJING ENG & CONSTR
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
The lack of effective fixing devices during voltage transformer testing leads to high-voltage leakage during testing, posing safety hazards and failing to meet insulation requirements. Furthermore, waiting for testing conditions may cause delays in the substation's power receiving plan.
Design a fixture for testing 35kV pluggable voltage transformers, including a long connecting rod, a short connecting rod, and a pressure rod, which are fixed to the voltage transformer by fastening bolts to ensure the tightness and airtightness of the test head.
It enables rapid fixing of voltage transformer test heads, meets insulation requirements, reduces safety hazards, improves test efficiency, and the materials are easy to obtain, simple to manufacture, and easy to carry and store.
Smart Images
Figure CN224518784U_ABST
Abstract
Claims
1. A clamp for 35 kV plug-in voltage transformer test, characterized in that, The device includes a long connecting rod, a short connecting rod, and a pressure rod. The long connecting rod is a long straight rod with a first connecting hole in its middle section. The short connecting rod is a short straight rod with a second connecting hole in its middle section. The pressure rod is a long straight rod with a third connecting hole at each end. The third connecting holes correspond to the first and second connecting holes and are connected to each other by fastening bolts. The long and short connecting rods are fixed to the top of the 35kV plug-in voltage transformer, and the pressure rod presses against the test head of the 35kV plug-in voltage transformer.
2. The clamp for testing of 35 kV plug-in potential transformer according to claim 1, characterized in that, The long connecting rod, short connecting rod, and pressure rod are all made of L-shaped channel steel.
3. The fixture for testing 35kV pluggable voltage transformers according to claim 2, characterized in that, The first connecting hole is centrally located on one side wall of the long connecting rod; the other side wall of the long connecting rod has two mounting holes, which can be connected to the lugs on the top of the 35kV pluggable voltage transformer by bolts.
4. The clamp for testing of 35 kV plug-in potential transformer according to claim 2, characterized in that, The second connecting hole is centrally located on one side wall of the short connecting rod; the other side wall of the short connecting rod is provided with a mounting hole, which can be connected to the lug on the top of the 35kV pluggable voltage transformer by bolt.
5. The clamp for testing of 35 kV plug-in potential transformer according to claim 2, characterized in that, The openings of the long connecting rod and the short connecting rod face outwards from the 35kV pluggable voltage transformer, respectively.
6. The clamp for 35 kV plug-in potential transformer test according to claim 1, characterized in that, The opening of the pressure rod faces upwards from the 35kV pluggable voltage transformer.