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PRS-761 smart terminal
PRS-761 smart terminalis developed based on the IEC61850 standard for digital substations, which is applicable to transformers and reactors. The device has a fully open digital interface, which can be seamlessly connected with primary intelligent equipment (primary intelligent switch), and is also compatible with conventional primary equipment. The device provides interfaces according to the IEC61850 protocol, which has no restriction on network type. It can achieve flexible networking, and can be applied to various networking methods at the process level.
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Scope of Application
It is applicable to intelligent substation transformersof various voltage levels.
Advantages
01
It has the functions of non-electrical quantity tripping, alarm and originating.
02
It has the functions of transformer position collection and remote regulating.
03
It can collect and upload the positions of knife switch and grounding knife switch, and the switch signal through GOOSE communication.
04
It can receive the GOOSE command for knife switch and grounding knife switch control from measurement and control, and output the corresponding action contact.
05
It supports the substation communication standard IEC61850, and the number of SV/GOOSE message receiving ports can be configured.
06
The device adopts 64-bit high-performance CPU, internal high-speed bus and intelligent I/O, and both software and hardware have modularized design, which can provide flexible configuration and plug-and-play.
07
The device adopts the 4U entire layer, reinforced case, multi-layer shielding, strict separation of strong and weak currents and other anti-vibration and anti-interference designs, which has high anti-interference performance, and is suitable for installation in harsh environments.
Technical Features
Specification

1

Case dimensions

482.6mm×177.0mm×283.0mm(W×H×D)

2

Normal working temperature

-40℃～70℃

3

temperature

-40℃～85℃

4

Storage and transportation

-40℃～85℃

5

Relative humidity

5%～95%

6

Atmospheric pressure

80kPa～106kPa

7

DC working power

220V / 110V, allowable deviation: -20％～+15％

8

Remote signal input

DC110V / DC220V, passive contact input, isolated by optocoupler

9

Power consumption of DC power circuit

Under normal operation, the power consumption of entire device is no more than 30W.

10

Under tripping action, the power consumption of entire device is no more than 40W.

11

Input response time

The input response time (not including the anti-shake time) should be no more than 5ms.

Related solutions
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Intelligent Substation Solution (1000kV and Below)
Intelligent substation is an important part of the intelligent power grid, while the integrated monitoring system is the basis for dispatching control and production management in the intelligent power grid. The PRS-7000 monitoring system of CYG SUNRI meets the requirements of digital information of entire station, network-based communication platform and standard information sharing, and various functions have been realized, such as uniform access, storage and display of station information, operation monitoring, operation and control, comprehensive information analysis and intelligent alarm, operation management and auxiliary applications.