Ninghao Bo Ji secret of business success lies in people, products, services, three quality persist. Skilled persons, help of trend momentum, not responsible for others, it can choose a man advantage. Business is war, quality pioneer. Quality control to improve the credibility, reputation and expand sales. Manufacture sophisticated products, cultivating talents. Plastic corporate image, a quality brand name. Quality - remain constant key to success. Standards Implementation of quality, certified image building. A quality brand, cast-class corporate image. Overview ZKJB-2000A-type new generation of intelligent switches computer monitoring protection device, using 32 high-speed digital signal processor DSP, 16 industrial-grade high-precision synchronous sampling A / D, dedicated electricity metering unit, and CAN2.0 high-speed communication networks, On the basis of the original ZKJB-2000 intelligent switch on the computer monitor protector added protection against short circuit grade trip, measuring the degree of multi-rate multi-function electrical equipment and environmental temperature monitoring and other functions. Further realization of real-time dynamic monitoring data show that sub-time management of electricity metering, fault lines and equipment reliable early warning, rapid positioning, accurate excision, the sequence of events accurately record, playback and other functions intact, able to run through the network parameters of electrical equipment, power information, device status, and the cause of the failure of the power system fault data is sent to a remote central station monitoring and control system, while the monitoring device is also able to receive control commands issued by the central station, in order to achieve modernization and information management grid system. This device is suitable for 10kV and below the neutral point ungrounded system or undercompensated grounded neutral power supply system, can play on the power grid and equipment monitoring and protection. Protect all current setting and time value can be set independently for easy system to protect the lower tie, a unique software algorithms successfully resolved through online grade trip lockout problem underground distribution lines using conventional time ladder circuit protection can not be avoided, ensure the reliability of underground power supply system. Device has a backup power supply, when the power line disconnect device in a power outage while automatically enabled back-up power supply to the unit, complete remote soe event records and information to facilitate timely view of underground staff cause of the accident, troubleshooting. This device series is designed for mining coal mine complex network environment and needs a special use optimized design, with a strong anti-interference in hardware and software, seismic resistant to moisture and corrosion resistance, remote control and keying two modes of operation to ensure the operation of the underground practical convenience and reliability. Can be equipped with a high-voltage switch inside flameproof use in BGP, PBG, PJG, QBGZ, QJG other mines. Technical characteristics: (1) 32 DSP digital signal processor, faster operation and protection of determination (relay exit from failure to ≤20ms time?); (2) high-precision PT, CT module +16 bit A / D sampling fast higher precision, more reliability, more accurate information is recorded;? (3) independent measurement and measurement channel + professional three-phase electricity metering module, complete professional three-phase multi-rate watt-hour meter function;? (4) more kinds of communication interfaces (RS232, RS485, Can2.0, Ethernet interface) configuration to meet the device in situ testing, network remote control, communications longitudinal grade trip to prevent various needs protection;? (5) special import electricity relay, ensuring Run the reliable output;? (6) a wide range of switching power supply, power-fast, stable performance, more reliable;? (7) high-brightness LCD, Chinese display interface, clear observation, more convenient operation. ? (8) Anti-grade trip with dedicated network interface, simply install the monitoring sub-stations to prevent grade trip and optical switches, you can quickly build a system to prevent grade trip.