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High Voltage Neutral Grounding Resistor Ner for Power Transformer

China High Voltage Neutral Grounding Resistor Ner for Power Transformer, Find details about China Rmu, Ring Main Unit from High Voltage Neutral Grounding Resistor Ner for Power Transformer

Model NO.
GP-NER-6.3; NER-10; NER-20; NER-35
Rated Frequency
50/60Hz
Rated Current
630A/1000A/1250A/2000A/2500A/3150A/3150A
Gas
Sf6
Rated Voltage
12kv
IP
Gas Tank IP67, Enclosure IP4X
Mechanical Life
5000 Times
Bil
65kv/125kv
Color
Grey, Ral7032, Ral7035
Trademark
GP
Transport Package
Plywood Case
Specification
as standard drawing
Origin
China
HS Code
85381090
Model NO.
GP-NER-6.3; NER-10; NER-20; NER-35
Rated Frequency
50/60Hz
Rated Current
630A/1000A/1250A/2000A/2500A/3150A/3150A
Gas
Sf6
Rated Voltage
12kv
IP
Gas Tank IP67, Enclosure IP4X
Mechanical Life
5000 Times
Bil
65kv/125kv
Color
Grey, Ral7032, Ral7035
Trademark
GP
Transport Package
Plywood Case
Specification
as standard drawing
Origin
China
HS Code
85381090

High Voltage Neutral Grounding Resistor Ner for Power Transformer

Summary

GPN1-12kV removable AC metal-clad switchgear (short for panel as below) is a new product, designed and developed by us, based on the introduction of advanced foreign design and manufacturing technology. The panel applies to 3.6~12kV 3phase AC 50Hz network for receiving and distributing power energy and also for control, monitor and protection. It can be arranged for single busbar, single busbar sectionalizing system or double busbar. It accords with IEC298 "AC Metal Enclosed Switch and Control Equipment above 1kV and below 52kV "IEC 694 Standard Common Clauses for High Voltage Switchgear ", DIN. VDE " AC Switchgear at Rated Voltage Above 1kV ", GB 3906 " 3~35kV AC Metal Enclosed Switchgear and so on. It has perfect and reliable prevention function against misoperation.

Normal Conditions

Ambient temperature: -25ºC ~+45ºC , daily average: ≤35ºC
Altitude: 1000m( Standard); can up to 4500m for special ordering; 
Relative humidity: daily average ≤95%, monthly average ≤90%;
Earthquake intensity ≤8 degree;
Applicable occasions should be free from inflammables, explosives, corrosives and severe vibration.



Ambient temperature: -25ºC ~+45ºC , daily average: ≤35ºC
Altitude: 1000m( Standard); can up to 4500m for special ordering; 
Relative humidity: daily average ≤95%, monthly average ≤90%;
Earthquake intensity ≤8 degree;
Applicable occasions should be free from inflammables, explosives, corrosives and severe vibration.

Features

1.Advanced process technique for gas tank

The digital-controlled laser cutting and punching system and three-dimension and five-axis laser welding system imported from Germany with ensure the gas tightness and uniformity of all gas tanks.
The fully automatic and integral helium leak detection system, made by SEILER Vakuumtechnik GmbH, through detecting of Helium leakage by mass spectrograph, brings gas leakage rate per year down to less than 0.02%, ensuring the life span of gas tank of over 30 years.
Advanced process technique for parts .
All epoxy resin insulated parts, including insulated poles, are manufactured by fully-automatic and digitally controlled epoxy resin vacuum mixing/pressure gelatinizing system from Hedrich (Germany) .
The busbar connector, cable connector, end-plug and other silicone rubber insulated parts are manufactured by fully-automatic and digitally controlled silicone rubber mixing/pressure gelatinizing system from VOGEL(Switzerland). 

2.Excellent solutions for products
With small and compact structure, the basic functional units K, T, V, B and C have uniform dimension: 350*800*1380 mm (width*depth*height) .
Complete solutions:
Single version: load break switch unit, switch-fuse unit, vacuum circuit breaker unit, busbar subsection unit, cable unit, metering unit, etc.
Block version can be made up of two, three, four, five or six functional units.
Single units and block version can be connected by busbar connectors flexibly. 

3.Strong adaptability to the environment
The primary conductive system is fully sealed in the SF6 gas tank and will not be influenced by the outside environment, independent of the impact of dew, dust, salt fog, etc. Therefore, GPR-24 series can be applied at various severe service conditions. 

Product Parameters

 

Description
Unit
LBS Unit
Switch-fuse Unit
VCB
Unit
Busbar subsection unit
Rated voltage
KV
12
12
12
12
Power frequency withstand voltage (1min)
Phase to phase/earth
KV 
42
42
42
42
Across the isolating distance
KV
48
48
48
48
mpulse withstand voltage 
Phase to phase/earth
KV
75, (95)*
75, (95)*
75, (95)*
75, (95)*
Across the isolating distance
KV
85, (110)*
85, (110)*
85, (110)*
85, (110)*
Rated frequency 
Hz
50,60
50,60
50,60
50,60
Rated current 
A
630
1
630
630
Rated short circuit breaking current
KA
 
2
20,(25)*
 
Rated short time withstand current
KA/s
20/3
(20/4, 25/1)*
 
20/3,(20/4, 25/3)*
 
20/3
(20/4, 25/1)*
Rated peak withstand current
KA
50, (63)*
 
50, (63)*
50, (63)*
Rated short circuit making current
KA
50, (63)*
2
50, (63)*
50, (63)*
Rated transfer current 
A
 
1800
 
 
Rated active load breaking current
A
630
 
 
630
Rated closed loop breaking current
A
630
 
 
630
5% rated active load breaking current
A
31.5
 
 
31.5
Rated operating sequence
 
 
 
O-0.3s-CO-180s-CO
 
Mechanical lifetime 
Ops
5000
5000
10000
5000
Electrical lifetime 
 
E3
 
E2
E3
Thickness of stainless steel 
mm
3.0
Rated SF6 pressure 
KPa
30 (at 20ºC , 101.3kPa) 
Annual leakage rate 
 
< 0.02% 
Water treatment test 
 
12kV 24 hours (at 30 kPa under the water)
Internal arc test 
 
20KA 1s
 
Protection degree
Gas tank
 
IP67
Fuse holder
 
IP67
GPR enclosure
 
IP4X

About Us

High Voltage Neutral Grounding Resistor Ner for Power TransformerHigh Voltage Neutral Grounding Resistor Ner for Power TransformerHigh Voltage Neutral Grounding Resistor Ner for Power Transformer

 

Packing&Delivery

 

High Voltage Neutral Grounding Resistor Ner for Power Transformer
High Voltage Neutral Grounding Resistor Ner for Power Transformer
High Voltage Neutral Grounding Resistor Ner for Power Transformer

     1. Air dispatched film covered                                   2. Light material by pallets                                       3.Vacuum package with plywood case 

High Voltage Neutral Grounding Resistor Ner for Power Transformer

 

High Voltage Neutral Grounding Resistor Ner for Power Transformer
High Voltage Neutral Grounding Resistor Ner for Power Transformer
High Voltage Neutral Grounding Resistor Ner for Power Transformer

FAQ

Q1: How to pay sample and express charges?
A: For express charges, you can pay to our company account directly, for those customer who has express account, we will send the samples by freight collected. If customers need samples, we will charge the cost first, once they place orders, we will return a part cost to their account.
Q2: What is your terms of payment?
A: Usually, we accept T/T, for regular order, we prefer 50% in advance, 50% against the pictures of finished material before delivery. 

Q3: How do you control the quality?
A: We have QC team comply with TQM, each step is in compliance to the standards, at the same time, and we will take photos and shoot video for you.
Q4: What about lead or shipping time?
A: The lead time depends on quantity you ordered, but generally within 2~5 weeks upon receipt of advance payment.
Q5: How long does it take for me to get the quotation?
A: For customized products, we will quote after you provide the requested product details within 48 hours because we need the time to calculate cost, but we will quote the soonest possible. For our standard product posted here we can quote in 24 hours.
Q6: Why should I choose your company?
A: We take customers' requirements as our mission, and take each details very carefully. We have about 15 years' experience for electric power business. We try to support our customers always, including delivery time, price, pre-sale, after-sales, though we are not the best, but we are always to improve ourselves and meet your needs. Choose us, will don't make you disappointed.
Q7. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q8: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q9: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

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