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: No concentrator can be copied directly
- Although no concentrator can directly meter reading, but reading efficiency, cost and data integrity rate and data sharing will be greatly affected, so the power metersreading general will use concentrators or negative control terminal equipment.
- Q: What is the installation equipment of the transformer on the power installation project
- It is composed of oil immersed transformer, low voltage outlet cabinet, lightning arrester, conductor, concrete pole, insulator, hardware and iron accessories, concrete prefabricated components. Construction method:
- Q: On the nameplate of the electrical equipment, what does ith UE ie mean?
- Electrical equipment consists of two parts: power supply and power equipment. The power supply comprises a storage battery, a generator and a regulator thereof. The utility model comprises a starting system of an engine, an illumination, a signal, an instrument, etc., and also comprises an ignition system of the engine.
- Q: Private enterprises must be free transfer of power facilities
- 1, belonging to the public nature of the public utility lines or occupy the planning corridor, by the unified management of power supply enterprises. The power supply enterprise shall reach an agreement on the operation, maintenance and management of power supply facilities prior to the handover. The power supply enterprise shall retain the capacity of the original owner in the above-mentioned agreement for the public power supply facilities for unified operation and maintenance management.2, belonging to the nature of the user, but not in the public substation power supply facilities, by the user operation and maintenance management. If the user operation and maintenance management is indeed difficult, with the power supply enterprises to negotiate, commissioned on behalf of the power supply enterprise operation and maintenance management matters related to the signing of the agreement.3, belong to the user sharing nature of the power supply facilities, by the owner of the property rights of common operation and maintenance management. If the user has difficulty in running and maintaining management, it can negotiate with the power supply enterprise to sign the agreement on behalf of the power supply enterprise on behalf of the operation and maintenance management.
- Q: Power transformers and other equipment are what units procurement bidding, all those procedures!
- Power Grid Corp on the volume of business is greater, because their main business is to invest in the construction of power grids.There are also a small number of individual units, such as large projects and large enterprises.
- Q: I would like to ask the power experts, according to the annual additional electricity, installed capacity, how to calculate the amount of the necessary supporting power equipment, etc.?
- At least the national research institutions to do, here is about not a conclusion. If such a conclusion, it also belongs to the commercial classified data, not just to show people.
- Q: The difference between electric load and power supply capacity
- There is a correlation coefficient between them, the power supply capacity = power load * demand coefficient.
- Q: Withstand voltage test, power equipment insulation unqualified reasons?
- Without proper consideration of the atmospheric conditions that affect the insulation characteristics. Because of the pressure, temperature and humidity have a certain impact on the spark discharge voltage and breakdown voltage, without considering these factors may lead to equipment failure.
- Q: For example, EPS emergency power supply and so on, as well as those used in public emergencies.
- The key is not the equipment problem, but to attach importance to the power emergency platform and power dispatching platformOf course, in addition to EPS lighting / power emergency power supply, there are the following emergency equipment:
- Q: The cost calculation of power equipment
- Fault and professional people to do the cost of fault handling and so on, there is no fixed standard, depending on the site
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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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