The PTC-12 series voltage transformer handcart (hereinafter referred to as PT handcart) is suitable for power systems with rated voltage of 12kV and below AC 50Hz. It is a product that is compatible with GZS1 (KYN28A-12), and its performance not only meets the requirements of GB11022-89 "General Technical Conditions for High Voltage Switchgear", but also GB1207-86 "Voltage Transformers" and related IEC186 standards. It has reliable position display function, reliable technical performance, simple structure, and easy installation and commissioning. It can produce various types of handcarts ranging from 1PT to 3PT.

PTC1-12 series voltage transformer handcart model and meaning



Normal usage conditions
1. The ambient temperature should not exceed+40 ℃ and should not be lower than -25 ℃ (storage and transportation are allowed at -30 ℃);
2. Altitude ≤ 1000m;
3. The daily average relative temperature of the air should not exceed 95%, and the monthly average should not exceed 90%.
4. The seismic intensity shall not exceed 8 degrees;
5. The place of use is free of water vapor, flammable, explosive, severely polluted, chemically corroded, and subjected to severe vibration.

Main technical parameters of PTC1-12 series voltage transformer handcart

Main structure and working principle of the product
1. Working principle
The pushing and pushing of the handcart can be operated without the system being powered on, which is very convenient for repairing voltage transformers and fuses. Moreover, S8 and S9 (test and working position display) can be installed according to customer needs. After the chassis transport trolley is sent into the designated position of the switch cabinet, the special handle can be inserted into the square head of the screw rod, and the handle can be started to shake. Clockwise is to advance, counterclockwise is to exit, the screw pitch is 10mm, and the effective working distance is 200mm (the lower PT is 175mm). Therefore, the entire working stroke of the handle is rotated 12 (17.5) circles. Whether advancing or shaking out, the first 19 (16.5) circles can be shaken at a medium speed, and the handle must be used with even force (excessive force may damage the screw rod and interlocking mechanism). When shaking to the 20th (17.5) circle, shake at a slower speed. When a "click" sound is heard, it is in place, and the red indicator light is on. At this time, the shaking should be stopped.
2. Main structure
The attached diagram shows two types of PT vehicles, with voltage transformers selected as JDZ10 (18) -12 (7.2) (2PT) and JDZX10 (18) -12 (7.2) (3PT).

Outline structure and installation dimension diagram

PTC1-12 series voltage transformer handcart