文本细线
文本细线
文本细线
CN
About

About us

LiaoningDanengElectricCo.,Ltd.(StockCode:832107)isaleadinghigh-techenterpriseintegratingR&D,design,production,salesandconstructionofelectricpowerInternetofthings. 

Company profile
Framework
development history
Honor
marketing network
Chairman message
intellectual property
News

News Center

ThecompanyhascompletequalitymanagementsystemcertificationandLiaoningProvincesafetytechnologypreventionfacilitiesdesignandconstructionqualification,constructionintelligentengineeringprofessionalcontractingqualification,fire-fightingfacilitiesengineeringprofessionalcontractingqualification,installation(repair)powerfacilitieslicenseandotherqualifications,andcanundertakeallkindsofrelatedprojects.Wecustomizecomprehensivesolutionstomeettheneedsofdifferentusers.

Enterprise information
Industry information
 Application

Industry and Application

Thecompany'sbusinesscoverspower,petroleumandpetrochemical,urbansecurity,communications,highwaytunnels,coalmines,intelligentbuildingsandotherfields.

Petrochemical security
power
Smart city
Infrastructure
Daneng power housekeeper
technical support

Technical support and services

ThecompanyhascompletequalitymanagementsystemcertificationandLiaoningProvincesafetytechnologypreventionfacilitiesdesignandconstructionqualification,constructionintelligentengineeringprofessionalcontractingqualification,fire-fightingfacilitiesengineeringprofessionalcontractingqualification,installation(repair)powerfacilitieslicenseandotherqualifications,andcanundertakeallkindsofrelatedprojects.Wecustomizecomprehensivesolutionstomeettheneedsofdifferentusers.

Engineering case
conceptual design
Technical Exchange
Data download
Research Center

Research Center

Thecompanyfocusesonprovidingintelligentsubstationintegratedsystemsolutions,publicfacilities(utilitytunnel)intelligentsecurityearlywarningsystemsolutions,powerdatacloudplatformsolutionsandrelatedproducts

Photoelectric measurement and control
Investors Relations

Investor relations

ThecompanyprovidesaseriesofcompleteandadvancedpowerandpublicfacilitiescomprehensivesolutionsforvariousapplicationscenariosofStateGrid,ChinaSouthernPowerGrid,ShenyangMetro,ShenyangTaoxianAirportandotherenterprises

Interim report
Periodic Report
Contact US

Contact us

Thecompanyhasbeenadheringtotheconceptof"R&Dinnovation,excellentquality,professionalservice",adheretotheresponsibilityofleadingthemarket,andconstantlyestablishthecoreadvantagesofthecompany'sproducts

Contact information
Recruit
 

 Industry and Application

In this era of rapid development of science and technology, optical fiber sensing technology as a branch of high technology is also moving forward

文本细线
文本细线

On line fluorescent temperature monitoring system for switchgear

2020-03-26



 Dt500 series point type optical fiber temperature sensing system is designed for the early prediction of faults and fires caused by insulation aging or poor contact of high-voltage power equipment such as high-voltage switch cabinet, knife switch, cable joint, transformer, etc, Because the optical fiber has the characteristics of electrical insulation, intrinsic safety and immunity from electromagnetic interference, the probe of the optical fiber sensor can be directly installed on the tested point, and the possible fault can be predicted by monitoring the real-time temperature of the switch contact and cable joint to prevent the occurrence of electrical fire.


Liaoning Electric Power Center Hospital (case)



Advantages of the system:
1、Sensor probe and pigtail have intrinsic safety characteristics, no metal parts, no electricity, no electromagnetic radiation, high insulation, high voltage resistance, especially suitable for use in high voltage environment;
2、The size of the sensor probe is very small (the smallest in the industry), which can be directly installed on the measured point, with accurate temperature measurement and rapid response;
3、Each temperature measuring point can set the alarm value separately;
4、The overheat alarm does not damage the optical fiber sensor and can be reused;
5、The thermometer has the self diagnosis function of fiber break, communication and other states;

6、24-hour real-time online monitoring, over temperature warning, real unattended;


Technical features:

1、It can display the temperature of one sensor in a fixed way or 9 sensors in turn
2、Each sensor can set temperature alarm value separately
3、 It has self diagnosis functions such as communication interruption and sensor fiber breakage
4、The built-in international general Modbus TCP protocol can facilitate data transmission and system integration with the third-party system

5、System parameters and alarm settings can be set online through the operation panel, or can be set offline through the MINIUSB interface with a PC


performance index
Temperature measurement range:-30℃~150℃
Temperature measurement accuracy:±0.5℃
Number of probes: 1, 3, 6 or 9, 12
Response time:  ≤2S
Communication interface: LAN, CAN or RS-485, miniUSB
Communication protocol: Modbus TCP
Input power: DC 24V or AC220V
Power consumption:≤15W
Working environment temperature: - 20 ℃ ~ 75 ℃, relative humidity ≤ 95% (no condensation)


Last：

Temperature monitoring system of high voltage and extra high voltage oil immersed transformer

Next：

Intelligent substation auxiliary control system