Temel bilgiler.
Kullanım
Koruma Kulak İçi
Çalışma gerilimi
Düşük Voltaj
Uygulama
Yüksek Voltaj İletim Hattı
Topraklama Yöntemi
Direnç Topraklama Yöntemi
Rared Fault Current
5-5000A.
Rated Voltage
380V to 500kv(with Adequate Isolation)
Ingress Protection
From IP00 to IP54(We Recommend IP23)
Finishing
:Pre-Galvanized. Hot-DIP Galvanized, Stainless Ste
Allowable Rated Time
5s,10s,30s,60s,10min,Continuously
Big Power, High Current Withstanding
1~5000A
Wide Range for Voltage
0.38kv~110kv
Wide Range for Resistance Value
0.01~1500ohm
Accessory
Switches, Breakers, CT, PT and etc Can Be Subsidia
Intelligent Monitoring Device
Monitor Current, Temperature and Number of Failure
Teknik Özelikler
export standard
Ürün Açıklaması
1. Neutral Protection Devices
1) Neutral Grounding Resistor
2) Arc Suppression Coil Complete Compensation System
2. Switchgear
1) KYN28 Switchgear
2) GGD Power Distribution Board
3) GCS Power Distribution Board
4) SF6 Gas Leakage Alarm System
3. Power Quality
1) Low Voltage Reactive Power Compensation Cabinet
2) Components & Modules of Low Voltage Reactive Power Compensation Cabinet
4. Transformer and Auxiliary Equipments
1) Transformer
2) Transformer Cooler Control Cabinet
5. Electrical Fire Protection Equipments
1) Infra-red Fire & Heat Detector for conveyor & transport system monitoring
2) Nitrogen Injection Fire Protection System
6. Accessories
1) Zero Sequence Current Transformer
2) Multifunctional Power Meter
3) Temperature and Humidity Monitor
4) Electrical Fire Detector
5) Electrical Contact Temperature Measurement System
6) Leakage Relay
Mingrui has outstanding technical researching team and superior equipments, specially concentrate on research & development, production, sales and service of neutral grounding series products of power distribution system. The transformer neutral earthing resistor we developed and produced is applicable to 6~35KV power distribution grid of cable lines in cities, large industrial enterprises, factories, airports, seaports, subway and etc. As well as 0.66KV system in mine digging and 0.4kv/6kv/10kv system in power plants.
1. Adopted high quality importe stainless steel or domestic stainless steel electric heating metal material, the product operates safely and reliably with the advantages of high conductivity, high temperature coefficient, corrosion resistance, thermostability, good oxidation resistance, high tensile strength, resistance value stability and etc.
2. The device also could be applied in medium power distribution system. When transfomer is angle-connected, independent grounding transformer could be installed with which the neutral point and resistance are connected
3. Resistance value could be designed from 1ohm to 2000ohm and current from 1A to 2000A
4. The cabinet could be installed indoor or outdoor. As the cabinet body is corrosion-resistant and of high protection grade, made from stainless steel plate or painted cold rolled steel plate
5. The counting function could be added to the device, which records times of resistance grounding
6. Isolated switch could be added which convenient examination and repair and so does temp. Or humidity controller
7. Intelligent monitor is at customers' option, which could monitor un-balanced current of neutral point when resistance cabinet is in normal operation, temp. Of resistance panel, and
Operation Environment
1. Applies to indoors.
2. Ambient temperature: Between -40 and +40 centigrade.
3. The altitude shall not exceed 3000m.
4. Relative humidity be or lower than 95%(25 centigrade)
5. Power grid frequency: 58-62Hz (60Hz System), 48-52Hz (50Hz System)
6. The air at the installation site shall be free from chemical corrosion, vapour or explosive dust.
Product Model and Description if Formation
Advantages of using a neutral grounding resistor:
? Reduced operation and
? Maintenance expenses.
? Fast isolation of the original fault.
? Reduced transient over voltages.
? Reduced physical damage on the
? Equipment at fault.
? Simplification of ground fault location.
? Increased life and protection of
? Transformers, generators and
? Related equipment.
? Reduced frequency of faults.
? Improved service reliability.
? Increased protection in the use of lightning arresters.
? Increased safety for personnel
Adres:
No. 118 West Fuxing Road, Baoding, Hebei, China
İşletme Türü:
Üretici/Fabrika, Ticari Şirket
İşletme Aralığı:
Elektrik ve Elektronik
Yönetim Sistemi Sertifikasyonu:
BS 25999-2, OHSAS/ OHSMS 18001, SA 8000, EICC, HSE, ISO 14000, ISO 14001, ISO 14064, ISO 20000, ISO 9000, ISO 9001
Şirket Tanıtımı:
Baoding Mingrui Optoelectronics Technology Co., Ltd., elektrik alanında 7 yılı aşkın tecrübesiyle Yüksek ve Yeni Teknoloji Endüstriyel bölgesinde yer almaktadır. Şirketimizin iki işletme kuruluşu vardır (Light Energy Company ve Electric Power Company). Light Energy Company, güneş enerjisi üretimi ve LED aydınlatma üzerine çalışmalar yürütmektir. Elektrik Gücü Şirketi, güç sistemi otomasyon ekipmanlarının araştırma, üretimi, satışı ve servisi ile ilgiye gelen yüksek ve yeni bir teknoloji şirketidir. Şirketimiz ile Pekin Üniversitesi ile Kuzey Çin Üniversitesi Elektrik Gücü arasındaki uzun vadeli ve yakın işbirliği güçlü bir yüksek teknoloji yetenek sistemi oluşturdu. Şirketimiz ayrıca ulusal ve yabancı elektrik teknolojisi geliştirme trendlerini takip ediyor, yeni ürünler geliştiriyor ve ilerleme sağlamak için güç otomasyonu ürün teknolojisine adanıyor.