NEXPO Products
IED PRODUCTS
We provide 'innovation at every level' in order to control rofitability as well as efficiency, safety, cyber security, the environment, and risk factors of reliability, utilizing the advanced technological prowess of both NEXPO Co., Ltd. and Schneider Electric.
IED PRODUCTS
description
MiCOM P521
Feeder Differential Protection Relays
MiCOM P521 provides high speed, two ended current differential unit protection of overhead lines and underground cables in applications such as ring mains and parallel feeders.
피더 차동 보호 계전기
MiCOM P521는 링 메인 및 병렬 피더와 같은 가공 선로 및 지중 케이블 애플리케이션에 대한 고속, 양단 전류 차동 장치 보호 기능을 제공합니다.
Specification
| Description | Specification |
|---|---|
| Type (Model Name) | P521 |
| Auxiliary Power Supply | 24 – 60 Vdc 24 - 250 Vdc, 48 – 240 Vac |
| CT Inputs | 4 |
| VT inputs | 0 |
| Number of Digital input (max) | 5 |
| Number of Digital Output (max) | 9 |
| Protection Elements | Undercurret (37) Negative sequence overcurrent (46) Broken conductor (46BC) Negative sequence over voltage (47) Thermal overload (49) Ground fault (50N/51N) 3 Phase overcurrent (50/51P) Circuit breaker failure (50BF) Phase segregated current differential protection (87P) Current transformer supervision (CTS) |
| Communication Protocol | IEC60870-5-103, DNP3.0, Modbus, K-bus/Courier, IEC61850 |
Question
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