KR-3310 High Voltage Capacitor Protection and Measurement Device

Introduction to KR-3000 series decentralized protection and measurement device ● It is mainly suitable for decentralized installation of various power supply systems with voltage levels of 35kV and below. The main CPU adopts a 32-bit DSP chip, fully localized LCD display, detailed and intuitive information, easy operation and debugging, and a unified software and hardware platform

KR-3000Introduction to Series Distributed Protection and Measurement Devices

●The protection and measurement device is mainly suitable for decentralized installation of various power supply systems with voltage levels of 35kV and below. The main CPU adopts a 32-bit DSP chip, fully localized LCD display, detailed and intuitive information, easy operation and debugging, and a unified software and hardware platform.

●The protection device records protection action events with time information and maintains power-off status. The device integrates functions such as protection, measurement, remote signaling, and remote control. Standard RS-485 and CAN buses are used for communication, making networking economical and convenient. It can directly communicate with monitoring or protection management machines.

●A fully functional circuit breaker circuit, compatible with both AC and DC operations, suitable for controlling various types of circuit breakers.

●This series mainly includes KR-3110 motor protection, KR-3120 motor differential protection, KR-3210 line protection, KR3230 bus tie protection, KR3310 air conditioner protection, and KR-3450 transformer protection.

Main functions

●Three stage overcurrent protection

●Two stage zero sequence overcurrent protection/unbalanced current protection

●low voltage protection

●Zero sequence voltage protection/unbalanced voltage protection

●Overload protection; overvoltage protection

●Control circuit disconnection, PT disconnection

●13 channels of remote signaling input acquisition, remote signaling displacement, and accident remote signaling

●Four central signal contacts

●AC/DC operation anti bounce circuit

●No loss of action records and signal memory in case of power failure

●Remote modification of parameters and fixed values

●Back end timing

KR-3310Wiring schematic diagram of high-voltage capacitor protection and measurement device

Note:

1. The device is equipped with an anti bounce circuit and is designed as a voltage division type circuit breaker

2. If a permanent magnet circuit breaker is used for triggering operations, a dedicated operating circuit is required or the protective passive contacts should be directly connected to the circuit breaker circuit

3. Select the protection type and adjust the wiring according to the capacitor wiring method