Digital Line Distance Protection Relay

Line distance relay,from China professional protection relay manufacturer.

Product Name:digital line distance protection relay

Scope of Application for digital line distance protection relay:
GTL-820 series digital line distance protection relay, mainly used in voltage level 110kV line and feeder line,
it sets protection, operation box, voltage switching, measurement, communication, record wave functions in one
body, Implementation of Middle/low voltage line protection, measurement and control and the circuit breaker
control function.GTL-820 series and GT800 series with background monitoring and protection devices consisting
of 110kV substation automation system.

Advantages for digital line distance protection relay :
1. Easy maintenance, no data loss,
2. Multi-plate structure
3.Smart cards, easier to use
4. Variety of communication
5.HMI

Technical Parameters for digital line distance protection relay:
Main features for digital Line Distance Protection Relay
a. 4U standard aluminum chassis, the combination of a plug-in structure, after mating chassis, various functional modules individually designed, the strength of electrical complete separation, strong anti-jamming capability, on-site maintenance convenience;
b. Multiple CPU intelligent plug-in designed to open into the open the plug-in to achieve real-time fully self-test; each relay coil can be detected;
c. Based CANBUS bus plug contact, reducing the connection between the plug, patch non-performing real-time detection;
d. Dual 32-bit systems, system redundancy; protection features produced by Texas Instruments 32-bit floating point DSP processor, run the program and data in the chip; running speed, high reliability;
e. HMI, network communications, and management functions produced by the Philips 32-bit ARM MCU, speed, storage capacity, network interface capability;
f. 16 AD sampling, measurement accuracy; sampling 48 points a week wave harmonic processing ability;
g. The protection module schematic design, computer-aided graphical interface secondary development and functional modifications to facilitate a series of products, flexible, fast and engineering design;
h. The complete circuit breaker operating circuit, has a remote control to jump, closing pressure interlock, spring discharged interlock closing function;
i. Flexible menu color or large color LCD, Chinese interface menu; flexibility to choose dual Ethernet, dual 485 interface;
j. To save less than 500 recent incident reports and run reports;
k. The man-machine management module uses real-time multi-tasking operating system, interface, network tasks such as real-time;
l. Can store 10 sets of protective setting, the dual value zone District self-test and mutual inspection combined setting value switching safe and convenient;
m. Power industry standard DL/T667-1999 (IEC 60870-5-103) standards-based communication protocol to facilitate computer monitoring or protection and management networked communications.

Quality control for digital Line Distance Protection Relay:
We always pay more attention to the quality of distance relay. Standard quality control system and team are responsible to insure the product quality in every process with different instruments like Digital simulation instrument,Relay protection tester,insulation tester and pressure machine.

After-sale Service:
1 Technical support online service provided.
2 Technical files service provided.
3 On-site training service provided.
4 Spare parts replacement and repair service provided.

About us:
Changsha Guotong Electrical Technology Co.,Ltd. is the leading developer and manufacturer of control
panel ,distance relay and automation scada system in China.It was established in 2009.We focus on control
panel ,automation scada system and protection relay. Our output is more than 2000 sets.

If you have specification parameters and requirements for our distance relay,customization is available.