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Special Small Protection For Inflatable Cabinet Ring Network Cabinet

Short Description:

Introduction to the device

The digital protection measurement and control device is suitable for the protection measurement and control of bay units of various voltage levels of 35kV and below. It has perfect protection, measurement, control, backup power automatic switching and communication monitoring functions. The protection and control of the power system provides a complete solution, which can effectively ensure the safe and stable operation of the high and low voltage power grid and the power system of the plant. It can be combined with other protection and automation equipment to form an automation system through the communication interface. All devices can be centrally installed by group panel, and can also be installed in high and low voltage switch cabinets on site.


Product Detail

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Device Features

  • It adopts fully sealed structure, which has good shock resistance and dustproof performance
  • Miniaturized design, small size, light weight, beautiful appearance, easy installation
  • Using a unique reliability design, no adjustable components, good device stability and strong anti-interference
  • Fully Chinese LCD display, the man-machine interface is clear and easy to understand, and the operation and setting are extremely convenient
  • The power supply and control circuit of the device are both AC and DC
  • It has RS485 bus serial communication port, and integrates MODBUS and IEC60870-103 standard communication protocol.
  • It has the function of event sequence recording, which can record 128 events, and the data will not be lost when power off
  • It has a complete self-checking function, complete abnormal records, event records, operation records, and all information is retained after power failure
  • The shape is small and fine, the structure is reasonable, the use of high-grade, high-quality components and multi-layer board technology and SMT technology, so that the product has high electrical performance
  • Ultra low power consumption

The main function

Feature name
Protective function Quick break protection

Overcurrent stage I protection

Overcurrent stage II protection

Inverse time limit protection

overload protection

Zero sequence overcurrent stage I

Zero sequence overcurrent stage II

Zero sequence overcurrent stage III

Rear acceleration protection

Reclosing

Overvoltage protection

Loss of pressure protection

Zero sequence overvoltage protection

Startup time is too long

Negative sequence overcurrent stage I

Negative sequence overcurrent stage II

Overheating protection

PT disconnection check

CT disconnection check

Measurement and control function Ia、Ib、Ic、3I0、UAB、UBC、UCA、U0、P、Q、COS

10 way remote communication

Circuit breaker remote opening, remote closing

hardware resources 10 switch inputs

Closing relay, opening relay, alarm exit relay, accident exit relay

Analog Inputs: Ia, Ib, Ic, 3I0, UAB, UBC, UBC, U0

1 channel RS485 communication

Terminal diagram of microcomputer comprehensive protection device

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Appendix: Protection Installation Hole Diagram

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Application

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    remarks

    Small protection

    Horizontal-type NLK600H s

    根据这个再P一张竖式的

    Special conventional protection for inflatable cabinet ring network cabinet

    Open hole is 147mm * 69mm

    Horizontal-type NLK600BH s

    Special small protection incoming line for inflatable cabinet ring network cabinet is self-supplied

    Horizontal-type NLK600S s

    82eff23f-9925-4f76-bcfa-2cb5f896ee79

    Special conventional protection for inflatable cabinet ring network cabinet

    Open hole is 147mm * 69mm

    Vertical-type NLK600BS s

    Special small protection incoming line for inflatable cabinet ring network cabinet is self-supplied

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