>Product Overview

The self-healing low-voltage shunt capacitor is made of advanced zinc-aluminium composite metalized film, introduced advanced technology and equipment from abroad, and produced in strict accordance with national standards and IEC standards; it is mainly used in low-voltage power grids to improve power factor, reduce line loss and improve voltage quality, and is a new type of power-saving product recommended by the state.

Product standard: GB12747-2004, IEC60831-1996.

>Model number and meaning

>Main technical specifications

● Operating conditions: ambient temperature -25℃~+50℃, humidity ≤85%, altitude below 2000m

● Voltage ratings: 250VAC, 400VAC, 525VAC, 690VAC, 750VAC, 1050VAC.

● Rated capacity: 1~100kvar.

● Capacity tolerance: -5 to +10%

● Loss angle tangent: tgδ≤0.1% at 20°C under rated voltage at working frequency.

● AC withstand voltage: 2.15 times the rated voltage for 10 seconds between poles, 3kV for 10 seconds between cases.

● Maximum permissible overvoltage: 1.10 times the rated voltage.

● Maximum permissible overcurrent: 1.30 times the rated current.

● Self-discharge characteristics: after disconnecting the capacitor for 3 minutes with 2Un DC voltage applied, the residual voltage is reduced to 75V or less.

>Main technical specifications

● Small size and light weight: due to the use of metallised polypropylene membrane material as a medium, the volume and weight are only 1/4 and 1/5 of the old product.

● Low losses: the actual value is less than 0.1%, so the capacitor itself has low energy consumption, less heat generation, low temperature rise, long working life and good energy efficiency.

● Excellent self-healing performance: local breakdown of the medium caused by overvoltage can quickly self-heal and resume normal operation, making the reliability much higher.

● Safety: Built-in self-discharge resistor and safety device. The built-in discharge resistor enables the electrical energy carried on the capacitor to be discharged automatically; when the capacitor fails, the insurance device can disconnect the power supply in time to avoid further development of the fault and ensure safety in use.

● No oil leakage: This capacitor uses an advanced semi-solid impregnating agent with a drop melting point higher than 70°C. It does not leak oil during use, avoiding environmental pollution and the capacitor will not fail due to oil loss.

>Form and mounting dimensions

>Main specifications and external dimensions

Note: Other sizes are available as special order. Single-phase capacitors have the same case dimensions as three-phase capacitors of the same kvar (except for products with a rated voltage of 0.69 kV).