Langbaidi | MES98 Microcomputer-based Power Resonance Diagnosis and Elimination Device

Deskripsi

Microcomputer-based Power Resonance Diagnosis and Elimination Device

Product Overview

MES98 microcomputer-based power resonance diagnostic and elimination device ( V210 , 220 , 230 , 240 , 270 ), which utilizes a high-performance 16- bit single -chip microcomputer and intelligent software technology . This device can diagnose ferroresonance, distinguish between overvoltage, ferroresonance, PT high-voltage side open circuit, PT low-voltage side open circuit, single-phase grounding, and other fault types, and can provide alarms, recording, and display. It can quickly eliminate ferroresonance at various frequencies and display relevant information. Field operation in large enterprises in the power, metallurgy, coal, petroleum, and chemical industries has proven the device’s superior performance and safe, reliable operation.

Manufacture : Baoding Langbaidi Electric Co., Ltd.

Product Model :

Features

1. This device has strong anti-interference capabilities and high data acquisition accuracy.
2. No tuning or debugging required, minimal maintenance.
3. It adopts a large-screen Chinese character LCD display, and the stored information is not lost after the device is powered off.
4. Accurate diagnosis and rapid, thorough harmonic elimination. It can distinguish between fault types such as overvoltage, ferroresonance, single-phase grounding,open circuit on the high-voltage side of the PT , and open circuit on the low-voltage side of the PT , and can automatically display and record the time of fault occurrence and related parameters.
5. It can provide comprehensive alarm signals and automatically display and record the time of the fault and related parameters.
6. Applicable to various voltage levels and characteristic resonant frequencies( 1/3 frequency division, 1/2 frequency division, power frequency, 3rd harmonic) in power distribution networks, with a wide range of applications.
7. It can store five levels of fault information and can recall and display them.
8. Equipped withRS-232 or RS-485 communication function, with the communication protocol being CDT protocol.

Technical indicators :

1. Operating power supply: AC/DC 220V (-20% ~ + 10%); DC 110V (-20%  ~ + 10%); Power consumption ≤10W
2. Ambienttemperature : -10 ℃ ~  +  55 ℃
3. Relative humidity: less than90%
4. Alarm relay contact capacity: DC 30V/1 A; AC  250V / 1 A

Applications :

• Power plants: Protect PTs in generator and transformer circuits
• Substations: Eliminate ferroresonance in 10–66 kV systems
• Industrial grids: Prevent PT burnout and false trips