PRS-3342 centralized intelligent station/substation terminals independently developed by CYG ET undertake the functions of fault detection, information transmission, control command acceptance and execution. In addition to three-remote and line loss management, it also supports a variety of FA modes, intelligent distributed feeder automation and other state sensing and edge processing functions of distribution lines, which can realize power collection and control, detect faults, locate and isolate fault areas and restore power supply in non-fault areas, thus improving power supply reliability.
Centralized Intelligent Station/Substation Terminal Series
It is mainly used in ring main units, switching stations and box-type substations in distribution network.
Product Overview
Product advantages
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Accurate sensing of line status
It has line three-remote functions, and integrates various line status monitoring and edge computing functions such as differential protection, line loss measurement, local feeder automation, recording and playback, etc. -
High performance grounding fault detection
The comprehensive criterion of sampling zero-sequence voltage and zero-sequence current transient first half wave and transient phase asymmetry method can sensitively detect complex faults such as high resistance grounding and arc grounding in small current grounding system, which has high reliability -
Convenient operation & maintenance
Simple on-site installation, and it supports remote maintenance, module hot plug and replacement-based maintenance, greatly reducing the dependence on automation professionals and operation & maintenance workload
Technical parameters
PRS-3342 intelligent station/substation terminals | |
Measurement accuracy | Voltage: level 0.5 |
Measuring current: level 0.5s, | |
Protection current: ≤3% (≤10In) | |
Power accuracy | ≤ 1% (Grade 1) |
Accuracy of electric energy | Active: 0.5S; Reactive: 2 |
Protection setting error | ≤3％ |
Delay setting error | ≤40ms or 1% |
Communication | Wireless, 4G/3G/2G self-adaptive |
Support hardware encryption | |
Teleindication resolution | ≤2 |