Wind Turbine Variable Protection Measurement and Control Device

• Type: Microprocessor Protection Device
• Component: Mechanical Structure Type
• For: for Switchgear
• Output Signal Type: Digital Type
• Production Process: Integration
• Material: /
• Model NO.: NRT-331
• 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

Applicable scope
NRT-331 is applied to current and voltage acquisition, protection, non-power protection, temperature measurement and switch control of variable high voltage side and low voltage side of wind farm booster box. Rnt-331 dimensions: 222mm(H) *150mm(W) *218mm(D), hole size 146mm(W) *206mm(H).

Working environment condition
Environmental temperature: -30~+55ºC
Relative humidity: no more than 95%,no condensation
Atmospheric pressure: 80~110kPa
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

Function configuration
1) AC quantity collection: 6 voltages; 7 current channels;
2) Switching quantity: 22 channels open in, 6 relay exits;
3) DC input: 2 thermal resistance, 2 4-20mA signal. It can be used to collect the relevant temperature of the box change, etc., and set the warning function of temperature exceeding the limit;
4) Electric gas protection: three-stage overcurrent protection, zero sequence current protection, overvoltage protection, low voltage protection, phase loss protection, single-phase grounding, etc.
5) Non-power protection (8 trips, warning optional) : heavy gas trip, light gas alarm, ultra high temperature trip, high temperature alarm, low oil level alarm, abnormal pressure alarm, etc.
6) Communication function: 2 RS485 ports, 2 fiber Ethernet optical ports. The transmission distance is not less than 50 kilometers, which can form a self-healing fiber ring network. Support IEC60870-5-103 protocol;
7) Information recording function: 32 recent historical reports can be saved. Can be driven as a parameter, power off to keep;
8) Fault recording wave: record the first 3 waveforms and the last 5 waveforms of the fault point.

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