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LH6200 switch cabinet status integrated measurement and control unit

The LH6200 switchgear status comprehensive measurement and control unit is a highly optimized human-machine interface and data management platform. It can connect various basic sensors for monitoring, such as high voltage joint temperature rise monitoring, partial discharge monitoring, power environment gas monitoring, and early warning, and has digital I/O interfaces to uniformly manage and upload various monitoring data. It realizes comprehensive state monitoring, diagnosis, early warning, and control of high voltage switchgear, providing technical support for users to assess the status, perform condition maintenance, and carry out condition governance.


1.Principle block diagram

2.LH6200Main Technical Parameters

Number

Project Name

Technical Parameters

1

Power Supply

AC85V~264V，DC100V~370V，15W

2

Application Environment

Altitude:3,000 meters and below

Ambient temperature: -20°C to +55°C   (indoors)

Relative Humidity:5%~95%

Seismic resistance: horizontal   acceleration 0.30g, vertical acceleration 0.15g

Electromagnetic Compatibility: EMCIV   Class

3

Shell material

Flame retardant ABS, black

4

Communication interface with the sensor

RS485, compliant with Modbus protocol

Internet of Things wireless communication   chip, line-of-sight communication distance 1500m

5

Communication interface with the user   backend

RS485, conforms to Modbus protocol

6

Outline dimension

120mmx120mmx105mm

7

Installation method

Panel embedded hole installation, hole   size: 113mmx113mm

8

Working and Alarm Indication

Operation: LED green flashing; Alarm: LED   red and green dual-color flashing

9

Switch quantity input

2 channel

10

Switch quantity output

3-way normally open/closed, dry contact   output, contact capacity 250V/5A

11

DC power supply output

1 group, 24VDC output, power 6W

12

Electromagnetic Compatibility

Complies with GB/T 17626, Level 4

13

Passive wireless temperature measurement   module

Standard configuration: 12 connections   available, others can be customized.

14

Electric Power Environmental Gas   Monitoring Module

Standard configuration: 4 connections   available, others can be customized.

15

Switchgear Partial Discharge Detection   Module

Standard configuration: 1 connections   available, others can be customized.

16

Other sensor connections

Non-standard configuration, customizable

17

Event Record

100 items

18

Historical Data Storage

More than 15 days

3.Overview of LH6200 Measurement and Control Unit Characteristics

ØIt is suitable for comprehensive monitoring of the operating status of high-voltage switchgear. Generally, it adopts a single unit and cabinet configuration, that is, one measurement control unit manages one side of high-voltage switchgear.

Ø  It is a highly optimized human-machine interface and data management platform with a compact structure, beautiful appearance, and powerful functions, suitable for installation on the panel of switchgear secondary instrument rooms.

Ø  It can be connected to basic intelligent status monitoring sensors with RS485 interface that comply with the MODBUS protocol; it can also achieve wireless connection with high-voltage contact temperature monitoring sensors of matching characteristics, with a communication distance within line of sight up to 1500m.

Ø  Standard Configuration: Can connect 12 high-voltage contact temperature monitoring sensors, 4 power environment gas monitoring and early warning sensors, 1 switch cabinet partial discharge monitoring sensor.

Ø  Non-standard configuration: Supports non-standard customization.

Ø  Configure a 3.5-inch color LCD display module with a user-friendly human-machine interface, table-based display, menu-style settings, and operations.

Ø  It can output a 24VDC/6W power supply, which is convenient for use by grassroots sensors.

Ø  It has 3 sets of switch output contacts and 2 sets of switch input contacts.

Ø  Communication with the user backend: RS485 interface, compliant with MODBUS protocol.