MRD-BJ/FD Neutral Grounding Resistor(NGR)
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
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FUNCTION | Neutral Grounding Resistors are used to protect power transformers, power generators and other associated equipment in your power systems against 50/60 Hz faults (short circuit) and transient phenomena (lightning). |
SPECIFICATIONS | There are six parameters needed to specify the neutral grounding resistor. 2. Rated fault current. 3. Rated “duration time” of the line to neutral voltage not exceeding the allowable temperature rise. 4. Rated Resistance. 5. Application environment, indoor or outdoor. 6. Enclosure material, ss plate or normal cold rolled sheet. |
RANGE | • Rated current: from 1 amp to 2000 A • Rated voltage: from 0.4 to 35kV • Rated Resistance: from 1 ohm to 2000 ohm • Rated time: 1 sec to continuous time rating |
TESTING AND QUALITY | All Mingrui Neutral Grounding Resistors are designed, rated, manufactured and tested in strict compliance with IEEE-32. Routine tests performed on each Neutral Grounding Resistor are measurement of resistance, high voltage power frequency, insulation measurement, aspect verification, dimensional control. Mingrui’s internal quality system has been developed and certified under ISO 9001 quality system |
CONSTRUCTION | Standard unit includes the stainless steel resistor assembly plus all the required insulators, internal connections and hardware installed in a standard safety enclosure. Neutral Grounding Resistor units are completely assembled, prewired, and tested at our facility. For shipping all units are crated for added protection and ease of handling. |
ENCLOSURE FEATURES | • Forged eyebolts in all four corners for easy hoisting. • Corrosion resistant nameplate provides complete ratings and manufacturers information. •Heavy gauged enclosure polyester powder coated finish provides maximum protection. |
ENCLOSURE OPTIONS | •Stainless steel, cold rolled plate construction. Custom paint finish is available. |
OPTIONS | • Current or potential transformers mounted and prewired at our facility |
- Q: 1 what is the power system and the power network? 2 what is the rated voltage of the electrical equipment? Why do the power system to use a variety of voltage levels? 3
- The electric power network is referred to as the "power grid", which refers to the connection between the bus from the booster station of the power plant to the bus of the substation.
- Q: What power equipment is needed for the motive,
- For parts processing and manufacturing, the equipment is gone. For assembly, see engine size. General small assembly, assembly, commissioning.
- Q: In what way is it confirmed that the destroyer is an electrical device? Identification or what.
- Not yet installed agricultural low-voltage lighting circuit, not in the use of electrical equipment. Even if the person who took part in the erection of the wire, it will not cause harm to public safety, its behavior should be qualitative theft.
- Q: Under the same voltage level, the rated voltage of the equipment is not exactly the same
- And some appliances have no effect. For example: switching power supply, it can work in a wide range of voltage, the output voltage remains unchanged. It should be noted that, as long as the manufacturers in the normal operating voltage range, generally will not cause the state of work and security issues, can be assured that the use of.
- Q: How to strengthen the management of electric power information communication equipment
- Problems in the management of information communication equipment1 personnel structure is not reasonable. With the continuous expansion of the power grid, power information communication equipment is also increasing. But at present, there are some problems in the management of electric power communication equipment, such as the lack of professional staff and the lack of post. At the same time, due to the lack of post phenomenon, resulting in the equipment management and maintenance work in the process of increasing the workload, making the existing staff complaints, work quality and work enthusiasm can not be guaranteed. On the other hand, because the new staff less power communication professionals confidence aging trend is more and more serious, the personnel structure imbalance restricts the progress and development of electric power information and communication equipment management to a great extent.
- Q: What is the importance of annual maintenance of electrical equipment? What harm does not do? As detailed, urgently!
- Two, power equipment testing overviewElectrical equipment preventive testing refers to the equipment has been put into operation according to the stated experimental conditions (test equipment, such as the provisions of the environmental conditions, test methods and test voltage etc.), regularly check the test items, test period ofOr test to find out the hidden trouble of the electric equipment in operation, prevent the accident or the damage of the electric equipment. It is an important measure to judge whether the power equipment can be put into operation and ensure the safe operation.With the rapid development of social economy, the rapid development of science and technology, the range of power equipment testing, equipment and technology are advancing with the times. A set of equipment "health index" including its electrical characteristics and mechanical characteristics of the two part of the contents of the groupAs a result, and can not get the power equipment in the power of the electrical characteristics of the "health value" this problem has been plagued by power users for many years. The emergence of a new condition monitoring technology solves this problem. Not only extends the powerThe concept of equipment testing, but also to fill the blind spot in the field of power equipment testing. The conventional power outage detection and monitoring technology complement each other, to provide a full range of data support for the reliable operation of power equipment.
- Q: What is the meaning of the station control layer in the power system
- Power system (mainly refers to the substation, power plant can also) for the control of the entire system is currently divided into the station control layer and the interlayer, after the digital substation outlet,
- Q: For example, EPS emergency power supply and so on, as well as those used in public emergencies.
- The latest electric power emergency response and emergency plan for safety protection"Emergency treatment and safe latest power accident contingency plans to protect the implementation of manual" is based on the country's electricity production safety accident emergency system master, provides all levels of power supervision departments and the major power companies, power system, power grid to cope with major public emergencies working principle, organization system and operation mechanism, for guiding the competent departments and local governments at all levels in various industries and departments effectively deal with the power of public emergencies, protect public life and property safety, has an important role to reduce disaster losses.
- Q: Pre checking and checking of goods in power system
- Check: the full name is a regular inspection, with the role of pre trial is almost the same as the general power system is the two equipmentGoods inspection heard, just heard of items set is the item visit orderly, convenient for production work.
- Q: In power system, the general conditions for the selection of electrical equipment are
- Rated conditions, such as voltage and current, thermal stability, dynamic stability check, the most basic
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MRD-BJ/FD Neutral Grounding Resistor(NGR)
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
OKorder Service Pledge
OKorder Financial Service
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