In order to keep source protection safely and comprehensively, Sices has launched the Sices MP250 power protection relay accessory. Power protection relays are used to provide the most optimal power protection measures available today. The Sices MP250 was studied with the MP250 as a power protection device to extend the functions and protections already in generator controllers enhancing their performance.

Mặt sau rơ le bảo vệ nguồn MP250

Source protection TTTT functions of Sices MP250:

Voltage protection relay.

Ground fault protection relay.

Frequency protection relay.

Differential protection relay.

Phase protection relay.


Voltage protection relay function in Sices power relay MP250

  • Low voltage protection power relay (27): The relay that is mainly responsible for protecting when the voltage of the power source drops too low, will take action to protect the system, thereby helping the system to be stable and secure. safer in use. Divided into 5 protection stages to help better protect the system.
  • Time depends on voltage (27+): There is a function to adjust the time to take action when a low voltage problem occurs on the system. Protected in 1 phase.
  • Over-voltage protection power relay (59): The relay that is mainly responsible for protecting when the voltage of the source rises too high, will take action to protect the system, thereby helping the system to stabilize and protect the system. safer in use. Divided into 5 protection stages to help better protect the system.
  • Sices power relay MP250 (59V) Non-maximum sequence overvoltage protection relay: The relay that is primarily responsible for protection when the voltage is not in the maximum order will give system protection action, thereby helping to The system is more stable and safe in use. Protected in 1 phase.
  • Maximum negative voltage protection power relay (51-): The relay that is mainly responsible for protecting when the maximum negative voltage voltage will take action to protect the system, thereby making the system more stable and safer. during use. Protected in 1 phase.

Reference: Sices MP250 Specifications

Reference: Protection relay


Ground fault relay function in Sices MP250

  • Ground fault protection relay (64): The relay that is primarily responsible for the protection when the power line is grounded will provide action to protect the safety and stability of the system.

Frequency protection relay function in Sices relay MP250

  • Sices relay MP250 (81O) over-frequency protection relay: The relay that is mainly responsible for protecting the source frequency when it rises too much will take action to protect the system. Divided into 2 protection stages to help better protect the system.
  • Over-frequency protection relay (81U): The relay that is mainly responsible for protecting the power frequency when it drops to the allowable level will take action to protect the system. Divided into 2 protection stages to help better protect the system.

Differential protection relay function in Sices MP250

  • Phase difference protection relay (78): The relay that is mainly responsible for the phase difference protection for the system and the phase-to-phase voltage imbalance protection will take action to protect the system.
  • Differential protection relay (87G): The relay is mainly responsible for differential protection for the motor to avoid affecting the system. Divided into 3 protection stages to help better protect the system.

Phase protection relay function in Sices MP250

  • Reverse phase and phase current unbalance protection relay (46): The relay that is mainly responsible for the reverse phase protection of the system and the phase current unbalance protection will take action to protect the system. . Protected in 1 phase.
  • Reverse phase and phase voltage unbalance protection relay (47): The relay that is mainly responsible for the reverse phase protection of the system and the phase voltage unbalance protection will take action to protect the system. . Protected in 1 phase.

Company name:

TTTT GLOBAL co Ltd,.

Address: Landmark 4 Building, Vinhomes Central Park, 720A Dien Bien Phu Str, Ward 22, Binh Thanh District, Ho Chi Minh City, Vietnam.

Website: https://ttttglobal.com/en

Hotline: +84286 2728 334

Email: Info@ttttglobal.com

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