MRD-NP Discharging Gap for Transformer Neutral

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 unit

Supply Capability:: 1000 unit/month

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Packaging & Delivery

Packaging Detail:	wooden case
Delivery Detail:	25-40 days against deposit

Specifications

Transformer Nuetral Grounding Protection Device
Max earthquake intensity: 8
Frequency:50Hz and 60Hz system
Max wind pressure:

Transformer Nuetral Grounding Protection Device

Transformer netral titik kesenjangan perlindungan perangkat , Transformer neutral titik jurang peranti perlindungan, 110kv transformer neutral protection gap device,220kv transformer neutral overvoltage protection gap, neutral point overvoltage protedtion device

Function

Most neutral of 110KV/220KV power networks are not grounded. In such systems, the neutral is easy to get overvoltage if struck by lightning or short-circuited by single-phase grounding fault. Besides most transformers are uniform insulated. This will greatly threaten insulation of neutral point. Therefore, we use MRD-NP Transformer Discharging Gap to protect neutral of transformer so as to prevent accidents from happening.

Operation Conditions

1. Applicable for indoor and outdoor.

2. Ambient temperature:-50~+55 celsius

3. Altitude: 1500m, if exceeds, we could produce as per specific details.

4. Max earthquake intensity: 8

5. Frequency:50Hz and 60Hz system

6. Max wind pressure:700Pa

Product Overview

110KV and 220KV is the main voltage grades in power supply grid, due to high voltage the neutral point usually grounds solidly or neutral point of some transformers does not ground based on requirements of relay setting and avoiding communication interference for limiting single-phase short-circuit current. By this way, the neutral point would be overvoltage caused by lightning stroke or single-phase grounding faults. Moreover most transformers are graded insulation, so the the overvoltage hazards to neutral insulation is huge. We must set a protective device preventing such accidents from occuring. MRD-NP transformer neutral gap protector of our company is such a device for it. It is produced strictly as per DL/T620-1997 overvoltage protection and insulation co-ordination of AC electrical equipments, applicable to 110 kv and 220kv power system where transformer neutral point does not ground.

If you need more details, please contact wtih us

Q: Complete sets of power equipment life of the country what are the provisions for the aging of the equipment how to deal with, there is no standard?: Such as frequency of use, load characteristics, working environment, etc.. The service life of a certain type of equipment must refer to the specifications of the corresponding industry.

Q: Part of the rated voltage of the power equipment is marked 10.5kv, and this is similar to the label 10KV power equipment what is the difference?Consulted a lot of teachers, but it is said that this is the old and new two methods, I would like to ask what is the basis of this, it is best to have a national standard for reference: 3, rated voltage transformerRegulations, to accept the power of the primary winding, the output power of the two windings, the general, the primary winding voltage = network voltage, the voltage of the two winding due to the consideration of the loss, higher than the network voltage of 5% to 10%

Q: On the safety hazards of electric equipment safety: 4 where the demolition, the power line protection zones of overweight, lifting, drilling, piling, scaffolding and other construction work, it shall be permitted by the power supply departments, take appropriate safety measures, and can work in the power supply department under the supervision of professional staff.5 prohibit the installation of electric power facilities within the range of 500 meters to carry out blasting operations, fireworks, etc..6 prohibit fishing in the power line protection zone, in case of personal electric shock accident.7 ban on power line protection zones, such as various types of debris piled hay straw, especially prohibit piling flammable and explosive materials.

Q: What are the effects of frequency variation on power users and power systems?: 1, the use of motor speed and system frequency, the frequency change will make the motor speed change, thus affecting the quality of the product. For example, the textile industry will change because of the frequency of defective products.2, modern industry, national defense and science and technology have been widely used in electronic equipment affected by frequency.System itself:1, low frequency operation, the generator will be affected by the stress of the blade. Even cause resonance, reduce blade life.2, increase the excitation current, improve the temperature rise, etc..

Q: What equipment is necessary on the list of electrical engineering equipment?: MSXB-F-75kVA/720kV frequency conversion resonance withstand voltage test device, MSDBF-30kVA multi frequency induction withstand voltage test device,

Q: The two devices of the power system have those: 4, relay protection and automatic devices, such as relays, automatic devices, used to monitor the operation of a system, rapid response to abnormal and accident, and then acts on the circuit breaker, protection control.5, DC power supply equipment, such as storage batteries, DC generators, silicon rectifier, etc., to provide control and protection of DC power supply and DC load and emergency lighting, etc..6, high frequency wave blocking device.7, since the cast device.

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: Rivers and lakes emergency, there is a 110kV and 10kV power supply line works, I would like to ask this kind of power project warranty items, scope, life and other detailed provisions where can be found? Are there relevant regulations? For example, if the provisions of the housing construction warranty, you can check the "construction quality management regulations," but the warranty content of power projects, what information should be checked? Note that the warranty is not repair. Waiting for good people reply, satisfaction and then points.: Implementation of electric power projects in accordance with the general agreement between the two sides agreed to the implementation of the warranty period, equipment installation and renovation works.If the contract does not specify the warranty period, the electrical pipeline.

Q: Ask the expert about the design of the power system diagram, 6kV side of the electrical equipment how to supply: For 35/6KV step-down stationEach line with the 6/0.4KV transformer, or 6KV equipment (such as 6KV synchronous motor), are the load of the stationSo, there are 6KV devices, single occupancy 6KV bus on a certain line can be

Q: The relationship between primary equipment and two equipment in power system: The two device is a device for the control, regulation, protection and monitoring of a device, which comprises a control device, a relay protection and automatic device, a measuring instrument, a signal device, etc.. The two device obtains the electrical connection with the primary device through a voltage transformer and a current transformer.

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