PRS-7395 Merging Unit and Smart Terminal Integrated Digital Substation Solution for Circuit Breakers Transformers NARI

PRS-7395 Merging Unit and Smart Terminal Integrated Digital Substation Solution for Circuit Breakers Transformers NARI

CYG SUNRI CO., LTD. 1994 China
  • PRS-7395 Merging Unit and Smart Terminal Integrated Digital Substation Solution for Circuit Breakers Transformers NARI
  • PRS-7395 Merging Unit and Smart Terminal Integrated Digital Substation Solution for Circuit Breakers Transformers NARI
Summary
The PRS-7395 Merging Unit and Smart Terminal is an integrated digital substation solution designed for intelligent grid applications. Combining smart terminal and merging unit functionalities, it delivers precise data acquisition, fast signal processing, and reliable control for traditional circuit breakers, transformers, and disconnectors. Featuring a compact 482.6mm×177.0mm×283.0mm design, wide operating temperature range (-40℃~85℃), and high-precision sampling (level 0.2 for voltage and measurement current), this device ensures stable performance in demanding environments. Supporting digital interfaces and local operation, it enables seamless integration into modern smart substations, offering fast tripping response (<5ms) and secure communication. Ideal for upgrading traditional power systems, it meets international standards for accuracy, reliability, and interoperability in energy infrastructure.More
Specifications
Dimensions:
482.6mm×177.0mm×283.0mm(W×H×D)
Normal working temperature:
-40℃~70℃
Sampling frequency:
Standard 4000Hz (80 points/cycle)
  • PRS-7395 Merging Unit and Smart Terminal Integrated Digital Substation Solution for Circuit Breakers Transformers NARI

dimensions

482.6mm×177.0mm×283.0mm(W×H×D)

Normal working temperature

-40℃~70℃

Extreme working temperature

-40℃~85℃

Storage and transportation

-40℃~85℃

Relative humidity

5%~95%

Atmospheric pressure

80kPa~106kPa

DC working power

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

Remote signal input

DC110V / DC220V, passive contact input, isolated by optocoupler

Power consumption of DC power circuit

Under normal operation, the power consumption of entire device is no more than 40W

Sampling frequency

Standard 4000Hz (80 points/cycle)

Sampling precision

The voltage channel meets level 0.2

The protection current channel meets level TPY (5P40)

The measurement/metering current channel meets level 0.2

Even-bay sending discreteness

Even-bay sending discreteness is no more than 10μs

Tripping action time

The tripping action time is no more than 5ms

Input response time

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

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