DT6 series voltage monitor

1. Product overview

Shunyang brand DT6 series voltage monitors are suitable for data collection, storage, statistics, display, transmission, monitoring and analysis of grid voltage at all levels of substations, hydropower stations, power plants, and power users. It is designed for grid network operation. Designed independent voltage monitoring device. It integrates the above functions, adopts a modular design communication terminal, and combines voltage quality information management systems that comply with the State Grid, Guangdong Power Grid, Guangxi Power Grid, Yunnan Power Grid, etc., to achieve command interaction between CAC and devices and active reporting of device data. It is an ideal voltage monitor upgrade product. The DT6 voltage monitor has passed the type inspection and EMC test of the Experimental Center of the State Grid Electric Power Research Institute.

2. Standard/Communication Protocol

1. Standard:

The People's Republic of China Electric Power Industry Standard DL/T500-2009 "Technical Conditions for the Use of Voltage Monitors"

State Grid Corporation Enterprise Standard Q/GDW 1819-2013 "Technical Specifications for Voltage Monitoring Devices"

Chapter 7 of the Technical Specification of Yunnan Power Grid Voltage Monitoring and Management System (V1.7 2012 Edition)

Yunnan Power Grid Voltage Monitor Network Access Detection Scheme (2015 Edition)

2. Communication protocol:

State Grid Corporation "Power Supply Voltage Monitoring Device I1 Communication Protocol"

China Southern Power Grid Yunnan Power Grid Co., Ltd., Guangdong Power Grid Co., Ltd., Guangxi Power Grid Co., Ltd., etc. "Voltage Monitoring Terminal Communication Protocol"

3. Main technical performance of DT6 series voltage monitor:

1. Product configuration and specifications

1×□V/G type single-channel voltage monitor, 2×□V/G type two-channel voltage monitor, 3×□V/G type three-channel voltage monitor.

"□" is for measuring 100V or 220V or 380V voltage, which can be selected by the user. GPRS wireless remote, Ethernet wired remote,

RS232/RS485 local serial port and other communication methods.

Rated voltage to be monitored: a universal monitor, namely 100V/220V/380V self-adaptive.

2. Dimensions

Hanging type (/G): 226×160×67mm (length×width×thickness).

3. Weight

DT6/G: 1.3kg (1.5kg when built-in GPRS module).

4. Monitoring circuit

There are three types: single, two, and three.

5. Working power

Under normal conditions, the monitor is designed to use an independent working power supply, which is separate and isolated from the voltage monitoring circuit, and the allowable power supply voltage is AC/DC (60~480)V.

The allowable power supply voltage is 60%Ug~130%Ug, based on the actual power supply voltage marked on the bottom case of the instrument.

6. Power loss

6.1. The power consumption of the monitor itself ≤ 3VA (except the communication module)

6.2. The power consumption of the sampling loop is ≤0.6VA.

7. Use environmental conditions

Ambient temperature: -10℃~+50℃

Limit temperature: -40℃~+70℃

Relative humidity: 40℃(20~90)%RH

Atmospheric pressure: 70~106kPa

8. Clock error

The clock error is less than or equal to 1s/d, and the normal running time can be maintained for more than 50000h after power failure (from the day when the monitor is shipped)

9. Accuracy

Voltage measurement error (within the range of Un±20%) ≤0.5%

Comprehensive measurement error (within the range of Un±20%) ≤0.5%

Sensitivity ≤0.5%

Statistical accuracy ≤0.02%

10. Storage capacity

Large-capacity storage meets the storage requirements of three-channel 1-minute interval, 100-day storage period and 12-month monthly statistical data, and has scalability. Data storage time after power failure: >10a (from the day the instrument leaves the factory).

11. Mean time between failures: MTBF≥50000h

12. Protective measures: The power supply, RS232, RS485 and other interfaces have anti-interference and lightning protection measures.

13. Shell protection performance: IP51 protection grade, sealed design, dustproof, waterproof splash, wall-mounted installation.

14. Flame retardant performance

The flame-retardant properties of the non-metallic shell and terminal block meet the flame-retardant requirements of GB/T 5169.11.

15. Overload capacity of signal monitoring circuit

The signal circuit can withstand 1.9 times the rated voltage for 60 minutes without damage.

16. Product function

16.1 Basic functions

16.1.1. Collection and statistics objects

Use true effective value sampling, sampling 4 times per second, and store as preprocessing value, 1min as a statistical unit

Using second-level acquisition, minute average algorithm, for 1~3 channels

(100V/220V/380V optional) The real-time voltage of the line is collected, stored, classified and counted, and displayed in the form of primary voltage

16.1.2. Statistical form: automatically classified statistics by day and month

16.1.3. Statistics and record items

a) Record the actual operating voltage

b) Voltage monitoring statistics

c) Event record

d) Flow records

e) Reliability record

f) Work status record

16.1.4, the setting of the day

16.2 Data storage function

16.3, display function

16.4. Parameter setting and query function

16.5. Event detection and alarm function

16.6, continuous working time recording function

16.7. Clock and time synchronization function

16.8, communication function

16.8.1, communication method

Wireless GPRS, Ethernet, RS232 serial port, RS485 interface communication methods can be selected according to the needs.

16.9. Safety protection function:

Self-check and self-recovery function

Software upgrade function

Power failure protection and automatic reporting function

Function status setting

Keyboard and inspection function

Device's own alarm function

Device key answer function

The appearance of the DT6 hanging type voltage monitor is shown in Figure 1. It is usually installed with three-point positioning.

Hanging type (/G) structure: 226×160×67mm (length×width×thickness).

Weight: 1.3kg (1.5kg when built-in GPRS module).

Product number: