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: 10KV below the district power equipment installation: tender units need at least a business license qualification certificate (Level 3 or above) safety production license,

Q: What are the relevant national standards for power equipment?: GB/T10228-2008 GB/T50062-2008 GB/T11032-2000 GB 11032-2010 DL/T613-1997 GB/T17468-1998 GB/T17468-2008 GB/T17211－1998 DL/T804-2002

Q: What are the lightning protection measures of power system: Use of cables in overhead line terminations (absorbing lightning waves). Arrester installed on overhead line terminal. Use of devices to prevent the operation of over-voltage as the backup protection of atmospheric overvoltage. To reduce the grounding resistance of tower.Improve the insulation level of the system. Wait。

Q: What power equipment is needed for the motive,: As long as the hydraulic pressure machine, bearing induction heater, tooling, assembly line assembly, commissioning test bench. Large parts to a lot, such as various parts of the fixture, the assembly line to the rotary table, lifting operation, pneumatic tools, etc.......

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?: Conventional equipment GB service life of 30 years, actually not to use life to replace, mainly is the national economic development speed is faster, for the replacement of aging equipment, specialized centralized auction, where their standard is used according to their own situation to the report.

Q: We are a manufacturer of intelligent switching equipment manufacturers to bid in the power grid to say what is the first access to what the Department: 2 please hold valid company documents to the trade and Industry Bureau for consultation!

Q: Ready to do electrical engineering commissioning, but do not know the work tired? Is there any danger?: 3, the State Grid Substation Intelligent Inspection Robot infrastructure design, installation, commissioning, operation and maintenance work;4, master the progress of debugging, coordinate and solve the problems in the debugging process;5, sorting out the relevant information required for inspection, organization of the specific project acceptance;6, complete other tasks assigned by the leadership.

Q: All I know is a generator, a transformer. I also want to fully understand the power system related to the equipment, from power generation to end users (enterprises, factories, they will design the equipment, production equipment is not to say, but they will be transferred to the electricity, in use is the processing equipment, such as transformer, I only know this involved) equipment, detailed list, thank you ah: Primary equipment is:The power plant and substation, generator transformer (step-up / step-down transformer), busbar, circuit breaker, isolating switch, current transformer, voltage transformer, insulator, reactor, lightning protection equipment (arrester, lightning), grounding device, electric energy metering.Business side: step-down transformer, circuit breaker, isolating switch, current transformer, voltage transformer, insulator, lightning protection and grounding device, the internal power supply generator, reactive power compensation cabinet, electric energy metering,

Q: Electric power equipment includes what steam turbines are used in what areas of what companies need steam turbines: Power equipment including: boiler, steam turbine, pump, deaerator, condenser, generator and so on, from the impact of steam boiler turbine blade hot out of the turns, then drives the generator to rotate to generate electricity, in general, now in thermal power plant and a large Shipping Co to use steam turbine

Q: How long has the power of power electronic equipment delivered water: ; equipment (mainly separator population) and pipeline (mainly elbow) wear faster, if the design, construction or improper operation, is easy to cause material deposition, so that the conveying jam, interrupt; transportation should not be high humidity, viscous or easily broken material etc..

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