Mutai Electric Group’s CJ19 series switched capacitor contactor, referred to as contactor, is an important component in low-voltage reactive power compensation equipment. This contactor is designed for use in AC systems with a frequency of 50Hz or 60Hz, under AC-6b usage category, with a rated insulation voltage of 690V and a rated operating voltage of 400V. The contactor has a rated operating current of up to 87A and its important function is to connect and disconnect the capacitor bank to adjust the median function factor COS of the electrical system.
One of the main features of the MUTAI CJ19 AC contactor is its surge current suppression device, which can effectively reduce the impact of closing surge current on the capacitor bank and help minimize operating overvoltage. This protective contactor is operated via a linear mechanism and has double break points on its contacts.
The design of the CJ19 AC contactor includes a CJX2 series AC contactor, a changeover contact group and six current-limiting resistor wires. The changeover contact group is located above the CJX2 series AC contactor, and the main contact system is arranged on the lower two floors. The upper main contact automatically disconnects and resets after being connected for a moment, and the lower main contact continues to close in place.
In addition, the contactor can be customized with auxiliary contact groups installed on both sides to increase the number of auxiliary contact pairs. From the perspective of contact function, the contactor includes three pairs of normally open main contacts, and each pair of normally open main contacts is divided into upper and lower layers. The upper main contact is connected in series with two current-limiting resistor lines, and then in parallel with a pair of lower main contacts. In addition, the contactor is also equipped with two pairs of auxiliary contacts (CJX2-18~32) or three pairs of auxiliary contacts (CJX2-40~125).
Users have the option of installing various functional modules such as delay and amplification on the contactor’s coil terminals, giving them the flexibility to tailor their operation to specific requirements. This versatility makes the MUTAI CJ19 AC contactor a reliable and efficient choice for low voltage reactive power compensation applications.
In short, Mutai Electric Group’s CJ19 series switched capacitor contactor is a rugged, high-performance component designed to meet the needs of low-voltage reactive power compensation equipment. With its advanced functionality, protective design and customizable features, this contactor provides superior reliability and accuracy in switching capacitor banks to optimize electrical system performance.
Post time: Jan-26-2024
