슈나이더 일렉트릭 P243-311A2MCD28M

슈나이더 일렉트릭 P243-311A2MCD28M

P243-311A2MCD28M is a comprehensive protection relay for rotating machines (motors/generators) from Schneider Electric’s MiCOM P243 series. It is a high-end digital protection device mainly used for the full protection, control and monitoring of large motors and synchronous motors.

1. 모델 코드 해석 (P243-311A2MCD28M)

P243: 베이스 시리즈, motor differential protection and integrated management relay.

3: Hardware configuration/version (corresponding to I/O, power supply and interface combination).

11: Protection function configuration (including complete motor protection such as differential, 과전류, 과열, 마구간, unbalance protection, 등.).

A2: Auxiliary power supply rating (typically 220–240V AC/DC or 110V DC, subject to nameplate).

중: CT input type (1에이 / 5에이).

기음: 통신 인터페이스 (including Modbus RTU, optional IEC 61850, 프로피버스 DP).

D28: I/O 구성 (예를 들어: 16 디지털 입력 / 16 릴레이 출력).

중: RTD temperature monitoring (supports 6–10 platinum resistance thermometers for winding/bearing temperature measurement).

2. 핵심 기능 & 보호 기능
3. Main Protection

87 Motor differential protection (phase-to-phase/turn-to-turn faults)

50/51 Overcurrent/instantaneous overcurrent, 49 Stator overheating, 48 Stall/locked rotor

51N/50N Earth-fault overcurrent, 37 Underpower/overpower, 24 Speed supervision

2. 측정 & 모니터링

Three-phase current, 전압, 힘, 빈도, 역률

RTD temperature monitoring (windings, 문장, cooling medium)

Motor operating hours, start count statistics, 이벤트 녹화 (1000+ 기록)

3. 의사소통 & 제어

기준: 모드버스 RTU

선택 과목: IEC 61850, 프로피버스 DP, DNP3.0

Programmable logic (PLC), remote switching, 오류 기록

3. 일반적인 응용 분야

High-voltage induction/synchronous motors (물 펌프, 팬, 압축기, 압연기)

Protection of generators and large rotating machinery

Critical motor circuits in industry, 힘, 야금, 석유화학, municipal engineering, 등.

4. 기술적인 매개변수 (참조)

Operating power supply: 24-240V AC/DC (넓은 범위)

CT 입력: 1또는 5A

입출력: 16 에서 / 16 ~하다 (릴레이 출력)

RTD: 6–10 channels Pt100/Pt1000

정확성: Current ±0.2%, Voltage ±0.5%

주변: -25°C ~ +70°C, front panel IP54

5. Differences Within the Same Series

P241: Standard motor protection (without differential)

P242: Enhanced motor protection

P243: Top configuration with differential protection (corresponding to model P243-xxxx)

슈나이더 일렉트릭 P243-311A2MCD28M

슈나이더 일렉트릭 P243-311A2MCD28M

슈나이더 일렉트릭 P243-311A2MCD28M