FOB Price
Obtener el precio más reciente400000 / Set
|Minimum Order
Place of Origin:
hebei
Price for Minimum Order:
Minimum Order Quantity:
1 Set
Packaging Detail:
wooden case
Delivery Time:
25-30 days
Supplying Ability:
50 Set per Month
Payment Type:
T/T, L/C
Persona de contacto Mr. Mery
No.118, Baoding, Hebei
Technology Specification:
FUNCTION
|
Neutral Grounding Resistors are used to protect power transformers, power generators and other associated equipment in your power systems against *0/*0 Hz faults (short circuit) and transient phenomena (lightning). |
SPECIFICATIONS
|
There are six parameters needed to specify the neutral grounding
resistor. 2. Rated fault current. 3. Rated “duration time” of the line to neutral voltage not exceeding the allowable temperature rise. 4. Rated Resistance. 5. Application environment, indoor or outdoor. 6. Enclosure material, ss plate or normal cold rolled sheet. |
TESTING AND QUALITY
|
with IEEE**2. Routine tests performed on each Neutral Grounding Resistor are measurement of resistance, high voltage power frequency, insulation measurement, aspect verification, dimensional control. Mingrui’s internal quality system has been developed and certified under ISO ***1 quality system |
CONSTRUCTION
|
Standard unit includes the stainless steel resistor assembly plus all the required insulators, internal connections and hardware installed in a standard safety enclosure. Neutral Grounding Resistor units are completely assembled, prewired, and tested at our facility. For shipping all units are crated for added protection and ease of handling. |
ENCLOSURE FEATURES
|
• Forged eyebolts in all four corners for easy hoisting. • Corrosion resistant nameplate provides complete ratings and manufacturers information. •Heavy gauged enclosure polyester powder coated finish provides maximum protection. |
ENCLOSURE OPTIONS
|
•Stainless steel, cold rolled plate construction. Custom paint
finish is available. |
Product Introduce:
Use condition: |
indoor |
Feature: |
Neutral grounding resistor |
Altitude high: |
Less than ***0m |
Ambient temperature: |
**0 centigrade ~~**0 centigrade |
Rated frequency: |
*8~*2Hz and *8~*2 Hz |
Air grade: |
Clean, without corrosion gas and dust |
Relative humidity: |
Not more than *5% (*5 centigrade) |
Order Note:
To serve you better, please kindly offer following information when ordering
1 generator rated voltage, transformation ratio of grounding transformer, resistance value;
2 insulation form of grounding transformer;
3 transformation ratio of current transformer ;
4 color of cabinet, wiring from the top or bottom;
5 time of current flowing-through
6 material and color of box, IP protective grade, colour and installation location.