Нейтральный резистор заземления для электросети

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Характеристики


Product Application


The neutral point earthing resistor is mainly used for power transmission and distribution systems which is composed of cable lines and has big capacitive current when single-phase earthing fault occurs, and for the power plant’s power system which has small capacitive current but resonant overvoltage needs to be prevented. The former one normally adopts low resistance earthing and the latter one adopts high resistance earthing. Currently, the neutral point earthing resistor has been widely used in urban power distribution network, large industrial park, power plant, offshore platform power distribution system, and large chemical enterprises.

Product Features


1. Unique steel gate structure design for better heat dissipation
•\t2. Big resistive film heat capacity: through a unique processing technology, monolithic resistors rated power can up to 1200 watts;3. Resistance deviation is small: the manufacturing resistance of the resistance film can be less than ± 5%;
4. Resistance film resistance adjustable range: single-chip range 0.005 ~ 11.7 Ω;
5. Resistance film insulation performance: The voltage insulation of resistance bank and its support can up to 8.3kv;
6. The change of resistance is small in hot state: the resistance sheet adopts imported stainless steel with low temperature coefficient, the change rate of the resistance can not be higher than 20% in hot state.

7. Strong anti-vibration: stainless steel bolts are used between resistances to get strong anti-vibration ability;
8. Corrosion resistance: resistance film is made of high temperature alloy material, with a strong corrosion resistance;
9. Performance cost ratio: compact structure and adjustable resistance sheet number, high performance cost ratio

Product Parameters
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Fault current 
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1 ~ 5000a
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System voltage
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 0.38kv ~ 110kv (3,6,10,35)
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Fever time
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 5s, 10s, 30s, 60s, sustained
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Resistance (20 ℃)
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0.01 ~ 1500Ω
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Temperature rise
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short temperature rise (10 ~ 30s) maximum no more than 760 ℃

continuous temperature rise 2h maximum no more than 385 ℃

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Case protection class
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IP20 ~ IP56
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Optional accessaries
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Optional accessaries
Product Details Show
Why Choose Us

About us

We are a manufacturer specializing in load bank, neutral point grounding resistors for more than 12 years with 2 production bases

Qualification

Our products are with military patent/CE/ISO9001:2015 and other professional certificates.

Exhibition & Cooperation

We have extended our business to all around the world with excellent quality & service, and won good reputation.

Product Processing
Product Packing
Main Products

Generator Testing Load Bank


Neutral Earthing Resistor


Filter Resistor


Winding Resistance


Aluminium Shell Resistance


Brake Resistor



0.0262 s.