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: Power equipment are 10KV or less, there is a business license, will be issued by the electrical installation (repair, test) power facilities license five and above qualifications, you do not need a safety production license ah? Urgently needed: Install the network need to debug the SERC issued installation (repair, test) power facilities permit five level or above qualification this debugging can be tender, can be a one-time construction units and the tender requirements: business license qualification certificate (grade 3) safety production license, the SERC issued Denso (repair, test) power facilities permit five level or above qualification

Q: Would like to ask: railway communication, signal, power equipment installation related to mechanical and electrical engineering? If belong to, including specific aspects. Thank you: Communication signal power belongs to mechanical and electrical installation engineering. However, it is different from the mechanical and electrical installation of industrial equipment, especially the railway communication and signal system. The main differences are the following points: 1, mechanical and electrical installation is mainly refers to the installation of equipment, power, monomer debugging, linkage commissioning commissioning. Railway communication, signal, power, but there is a very strong system requirements, including the total network management system debugging, and other railway system of professional linkage debugging. For example, the signal CTCS system, track circuit and the coordination of the work system commissioning; and passenger cars, motor vehicles, truck station shunting system linkage debugging, etc.

Q: What is the definition of abnormal equipment, equipment failure, equipment failure and equipment accident? From which power standard?: Obstacles: not clear, probably not normal and must be modified to be normal,If the circuit breaker parameter is not appropriate, change the parameter specification.

Q: I would like to set up a power engineering Co., Ltd., do not need to know what the scope of business: Domestic thermal power, hydroelectric power generation, power transmission and power supply, energy saving, environmental protection, industrial and civil buildings, intelligent buildings and municipal engineering contracting, including consulting, design, research and development, supervision, project planning, equipment, construction, installation and technical services etc.

Q: On the safety hazards of electric equipment safety: 3 where in the overhead power line protection zone new, reconstruction or expansion of the building, must go to the power supply department for the approval of the relevant procedures for the safety of power facilities construction. It is forbidden to borrow, dig fish ponds, pile up or dump harmful chemicals in the power line protection zones.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.

Q: How to handle the qualification test, what kind of power equipment: Acceptance; staff review the material you submitted to meet the requirements, may be 10 working days.(three) after acceptance, on-site verification. Staff to review your outfit team.

Q: Large engineering construction (such as buildings, factories, institutions) distribution room of the power equipment as required? What's the difference? For example, some requirements never power, and some to eliminate harmonics to improve power quality, the more detailed the better the program: In the vicinity of the power grid in the supply of power on the requirements of their own generators to ensure that the dual power supply. Factories and institutions to see what the main work, if it is steel, hospital, such as the load category one or two categories of power needs of the dual power supply. And the load such as electric furnace, easy to produce harmonics, in order to ensure the power quality of the grid, it requires the installation of harmonic elimination device.

Q: Electric power equipment start-up and commissioning of the project there is a difference?: The start of the equipment is started in the single test.

Q: Definition of power equipment defects: An abnormal or hidden danger of the equipment or facilities that are in operation or spare. These anomalies or hidden dangers will affect the human body, power grid and equipment safetyReliable and economical operation of the power grid and equipment; equipment output or life; power quality.

Q: Power equipment is required to replace the dimension, the state has no relevant provisions: But more time has entrusted operation maintenance experience unit maintenance, power equipment to customers is good, one can improve the safe and stable operation of equipment, to meet the demand of a power supply section, on the other hand it can guarantee and increase operation life of equipment.

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