Nr-615/616 Microcomputer Harmonic Elimination Device

• Type: Microprocessor Protection Device
• Component: Mechanical Structure Type
• For: for Switchgear
• Output Signal Type: Digital Type
• Production Process: Integration
• Material: /
• Model NO.: NR-615/616
• IP Rating: IP20
• Certification: GB
• Customized: Customized
• Transport Package: Carton
• Specification: As standard drawing
• Trademark: OEM & ODM
• Origin: China
• HS Code: 8538900000
• Production Capacity: 10000/Month

Product Description

Model description

NR-615 Microcomputer harmonic elimination device	suitable for 1-section busbar
NR-616 Microcomputer harmonic elimination device	suitable for 2-section busbar

Applicable scope
The NR-615/616 microcomputer harmonic elimination device is suitable for automatic harmonic elimination when
resonance occurs in 3KV-66KV non effectively grounded system. The device determines whether there is resonance
overvoltage or single-phase grounding in the system by monitoring the harmonic frequency and zero sequence
voltage of the PT open triangle voltage of the busbar, and determines whether harmonic elimination is necessary. If
the harmonic elimination condition is met, the thyristor connected at both ends of the open triangle is controlled to
conduct, and the open triangle winding is short circuited (if single-phase grounding occurs in the system, harmonic
elimination is not carried out),so as to quickly eliminate the voltage saturation overvoltage.
Due to the extremely short short-circuit time, it will not burden PT. The premise of harmonic elimination device is to
destroy the conditions for forming resonance to ensure the safe and stable operation of electrical equipment, but it
cannot eliminate(absorb)resonance frequency.
NR-615/616 overall dimension: 128mm(width)*168mm(height)*108mm(depth), opening dimension: 124mm(width)
*143mm(height).

Device function configuration
*Real time display of voltage components at four frequencies: 3 fractional frequency, 2 fractional frequency,fundamental wave and 3       frequency multiplication of PT open delta voltage;
*It can accurately distinguish overvoltage, resonance and single-phase grounding;
*It adopts high-power, contactless harmonic elimination component, with rapid and reliable harmonic elimination;
*It provides alarm signal for various faults, displays and stores relevant information, and provide 8 sets of passive alarm nodes;
*80 sets of fault records that can be maintained after power failure;
*It adopts a 128x64 dot matrix liquid crystal display(LCD) with Chinese and English menus, displaying rich and intuitive information;
*The communication interface can transmit relevant information to the superior monitoring system, suitable for unmanned substations

Working environment condition
Environmental temperature: -30~+55ºC
Relative humidity: no more than 95%, no condensation
Atmospheric pressure: 80kPa~110kPa
Other conditions: The air around the device should not contain substances with acid, alkali corrosion or explosive
properties, and should be free of lightning, rain and snow
Standard atmospheric conditions for the test: temperature +15~+35ºC , humidity 45%~75%, air pressure 86~106kPa







COMPANY PROFILE:

AN HUANG isa modern company of professional design and manufacturer of 3.6kV to 40.5kV Medium Voltage cable accessories, electric components and whole set cabinet Subsidiaries:Anhuang Electric Power Technology Co.,Ltd 
Zhejiang Anhuang Imp & Exp. Co .. Ltd. We provide high quality, low cost products for utility systems worldwide 

Company constantly introducing new technology,newcraft, the product structure constantly improved.Our Professional
production testing equipment.special production technology and professional service team can satisfy the customers demand. 

Our professioal engineers,technicansand managers team always keep our promise:ANHUANG is not only provide cost­-effective high quality products.but also provide high quality, efficient, fast service and technical support to ensure customers' require.

Our company obtained international quality management system ccertification for ISO9001,ISO1401,OHSAS18001.

Our company adhenring to the "safety electricity, forever brilliant " as our enterprise's humanism. Willing to work with you hand in hand to build better future