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Transformer core grounding current online monitoring system
Transformer core grounding current online monitoring system
Transformer core grounding current online monitoring system
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  • Transformer core grounding current online monitoring system
  • Transformer core grounding current online monitoring system
  • Transformer core grounding current online monitoring system

Transformer core grounding current online monitoring system

1. Product Overview LHTX1306B transformer core grounding current online monitoring system captures instantaneous current changes through real-time online, and analyzes, judges and alarms, providing operators with accurate and direct judgment basis. The alarm information can help the operating personnel to eliminate the iron core in time. The ground fault, its stored historical data provides a powerful basis for the state maintenance, evaluation, early warning and risk analysis of the transformer, and is a powerful tool to ensure the safe operation of the transformer.

Category: Product Center

Key words: equipment


Product Description

1. Product Overview
LHTX1306B transformer core grounding current online monitoring system captures instantaneous current changes through real-time online, and analyzes, judges and alarms, providing operators with accurate and direct judgment basis. The alarm information can help the operating personnel to eliminate the iron core in time. The ground fault, its stored historical data provides a powerful basis for the state maintenance, evaluation, early warning and risk analysis of the transformer, and is a powerful tool to ensure the safe operation of the transformer.
2. The main features of the data collection cabinet
● Real-time acquisition of core grounding current using high-precision transformer
● There is RS485 bus interface, which can analyze, judge, process and upload the collected data to IED.
● Measurement range: 0~10A;
● Measurement accuracy: ± (standard reading * 1% +1 mA).
● The 10-100A device is not damaged.
● Protection class IP65
3. IED main features
● With RS485 interface input, RJ45 Ethernet interface, ST optical port output, installed in a standard 19-inch cabinet;
● It can display multiple sets of transformer core and clamp current at the same time;
● Support modbus communication protocol, 61850 communication protocol (optional);
● Upload data to the background monitoring center in real time.
4. Main function features of signal extraction box
● Real-time acquisition of core grounding current using high-precision transformer
● There is RS485 bus interface, which can analyze, judge, process and upload the collected data to the IED manual cut-in resistor function;
● There are 3 knife switch. When an overcurrent warning occurs, the corresponding resistor is manually put in, which is safe and reliable.
● Measurement range: 0~10A.
● Measurement accuracy: ± (standard reading * 1% +1 mA).
5. Product model
No. Model Picture Introduction
1 LHTX1306B-C01-V22
LHTX1306B-C01-V30
LHTX1306B-C01-V22 LHTX1306B-C01-V30
LHTX1306B-C01-V22
Output 485 signal;
LHTX1306B-C01-V30
Output 4-20mA signal; size: 400*440*140 old structure
Technical Parameters:
1. Working voltage: AC198V-245V
2. Working current: <0.2A
3. Communication method: RS485, 4-20mA, 61850
4. Station communication transmission distance: 500m
5. Measurement range: 1mA ~ 10A
6. Error range: ± (standard reading * 1% +1 mA)
7. Working environment temperature: -40 ° C ~ +65 ° C
8. Working environment humidity: ≤90%
9. Storage and transportation temperature: -25°C~+85°C
10. Altitude: no more than 4000 meters
11. The capacity of the relay contact is: AC250V/3A
2 LHTX1306B-C01-V34、LHTX1306B-C01-V40 LHTX1306B-C01-V34、LHTX1306B-C01-V40
LHTX1306B-C01-V34
Output 485 signal;
LHTX1306B-C01-V40
Output 4-20mA signal; size: 206*277*220 new structure
Technical Parameters:
1. Working voltage: AC198V-245V
2. Working current: <0.2A
3. Communication method: RS485, 4-20mA, 61850
4. Station communication transmission distance: 500m
5. Measurement range: 1mA ~ 10A
6. Error range: ± (standard reading * 1% +1 mA)
7. Working environment temperature: -40 ° C ~ +65 ° C
8. Working environment humidity: ≤90%
9. Storage and transportation temperature: -25°C~+85°C
10. Altitude: no more than 4000 meters
11. Equipment overload capacity: core / clip current 100A long-term
12. The capacity of the relay contact is: AC250V/3A
3 LHTX1306B-C01-V41
LHTX1306B-C01-V42
LHTX1306B-C01-V41 LHTX1306B-C01-V42
Real-time upload current, no display
LHTX1306B-C01-V41
Output 485 signal;
LHTX1306B-C01-V42
Output 4-20mA signal; size: 160*160*160
Technical Parameters:
1. Working voltage: AC198V-245V
2. Working current: <0.2A
3. Communication method: RS485, 61850
4. Station communication transmission distance: 500m
5. Measurement range: 1mA ~ 10A
6. Alarm value: Default 100mA
7. Accuracy: ±1%±1mA
8. Resolution: 0.1mA
9. Working environment temperature: -40 ° C ~ +70 ° C
10. Working environment humidity: ≤90%
11. Storage and transportation temperature: -25°C~+85°C
12. Altitude: ≤ 4000 meters
4 LHTX1306B-IED-V20 LHTX1306B-IED-V20
1.3 inch small screen IED,
It can access 9 sets of cabinet current information and output 61850 protocol;
1. With RS485 interface input, RJ45 Ethernet interface, ST optical port output, installed in a standard 19-inch cabinet;
2. It can display multiple sets of transformer core and clamp current at the same time;
3. Support modbus communication protocol, 61850 communication protocol (optional);
4. Upload data to the background monitoring center in real time;
5. Standard 3U chassis size 482.6*133*250.
5 LHTX1306B-0RS-V11
LHTX1306B-0RS-V20
LHTX1306B-0RS-V11 LHTX1306B-0RS-V20
LHTX1306B-0RS-V11 LHTX1306B-0RS-V20
LHTX1306B-0RS-V11
With manual protection, no monitoring circuit, no current display, no power supply, three resistors in parallel; size is 360*306*160mm. (height * width * thick) LHTX1306B-0RS-V20
With manual protection, no monitoring circuit, no current display, no power supply, three resistors in series; size is 360*306*160mm
(height * width * thick).
 
6 LHTX1306B-0RS-V10 LHTX1306B-0RS-V10	LHTX1306B-0RS-V10	With manual protection, real-time monitoring of current, power supply, current display, size is 360*306*160mm (height*width*thickness)
Function and technical indicators:
1. It can accurately monitor the current value of the grounding point of the transformer core, display it on the spot, and display the current in milliamps (mA);
2. The system current over-limit protection function can be manually switched by three-level resistance;
3. It can record the most recent 50 current over-limit alarm information, which can be stored in EEPROM and can be queried through the collector panel.
4. It can store current real-time data, save it every 10 minutes, store it for one month, store it in SD card as text file, xml format, and use card reader to read data;
5. Parameter setting requires password input, which can effectively protect user privacy; user password can set password by itself, default password: 1111;
6. With clock display and setting function;
7. With alarm threshold setting function, the default value is 100mA;
8. With device address setting function, can be set to range 01-09, default 01
9. Power supply: AC 220V±10%, 50/60Hz, power consumption is less than 10VA
10. Measurement range: 1mA~10A resolution 0.1mA
11. Accuracy: ±1% ± 1mA
12. Communication method: RS485 modbus protocol
13. Dry node output: Close when current exceeds limit, capacity AC250V/3A
14. Working environment temperature: -25~85°C;
15. Working environment humidity: 10% ~ 95% at 25 ° C;