Neutral Point Grounding Resistance Cabinet for 6~66kv 50Hz Power Grid

• Customization: Available
• Certification: CCC, ISO9001
• Shell Material: Stainless Steel
• Model NO.: NER
• Installation: Fixed
• Structure: Cabinet
• Current: AC
• Customization: Acceptable
• Currency: RMB or USD
• Language: Chinese, English, Russian
• Loading Port: It Depends
• Rated Voltage: 6-66kv
• Frequency: 50Hz
• Transport Package: Wooden Case or Others
• Specification: As required
• Trademark: HZEC
• Origin: China
• Production Capacity: 100000 Sets/Year

Product Description

Company Profile

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.

Product Description

The neutral ground resistance cabinet is suitable for 6 ~ 35kV, 50Hz medium voltage distribution network, is used to connect the transformer or generator and the ground between a current limiting protection electrical equipment. When a fault occurs in the distribution network (two-phase short circuit, single-phase grounding, single-phase break, etc.), the neutral point of the distribution network will be offset, and the neutral ground resistance will force the neutral point of the distribution network to ground through the resistance and limit the fault current, so that the relay protection equipment has enough time to carry out.

Product Parameters

 

Rated voltage (kV)	Bus number	Grounding residual current	Capacitance current measurement error
6-66	2	<5A	≤2%
Communication interface		Environment for controller
RS232/RS485		-25ºC~+45ºC;humidity ≤95%

 

Properties

1. Corrosion resistance: stainless steel resistor, high conductivity, high temperature coefficient, corrosion resistance, good thermal stability.
2. Large capacity: dry grounding transformer can be installed in the impact resistant cabinet, with large capacity and impact resistance. Resistance cabinets are generally used indoors.
3. Preferred material: spray cold-rolled steel plate, stainless steel plate, KYN28 standard cabinet, choose one. Can be equipped with isolation switch or vacuum contactor, easy maintenance.
4. It can monitor the temperature of the resistance and the intelligent monitoring device of the resistance cabinet can be installed in the cabinet, temperature and humidity, record the size of the grounding current, the number of grounding, and has a 485 communication interface, which can communicate with the upper computer.

Order Instruction

1. System rated voltage, current transformer ratio;
2. Transformer connection group and secondary rated voltage;
3. Material, IP protection level, color and installation location of the resistance cabinet
4. Indoor, outdoor and import and export wiring methods;
5. Flow through time, resistor resistance value;
6. Check whether a ground counter needs to be installed.
7. When the continuous imbalance current exceeds 3%, the supply and demand parties shall discuss and decide.

Certifications