• Ultra High Voltage Transformer Oil
  • Ultra High Voltage Transformer Oil

Ultra High Voltage Transformer Oil


High Voltage Electric Pressure Station Cooling Oil


Our High Voltage Electric Pressure Station Cooling Oil is a premium fluid specially crafted for high-voltage electrical pressure stations, engineered to handle the extreme heat and high-voltage working conditions of core electrical equipment. Made from high-quality naphthenic base oil with advanced hydrofining technology, it acts as cooling medium, insulation barrier and impurity cleaner all in one, ensuring stable and safe long-term operation of your pressure station equipment, reducing downtime and maintenance costs effectively.

$380.00
18L:
200L
Play

Jining De Nai Chi New Energy Co., Ltd.

View Supplier
Registration Date 2016
Company Size 21,000 m²
Employees 100 persons
Storage Capacity 100,000 tons
Production Lines 20
Patents 30
Profit and Tax Contribution 14 million USD
Certifications ISO 9001, ISO 14001, IATF 16949, ISO 4500
Main Products: Construction Machinery Lubricants, Automotive Lubricants, Industrial & Special Oils, Metalworking Fluids
Oversea Warehouses: South Africa Warehouse, Russia Warehouse, Kazakhstan Warehouse, Southeast Asia Warehouse
Details

Technical requirements

Item

Quality Index

Test Method

Lowest Cold Start Temperature (LCSET)

0℃

-10℃

-20℃

-30℃

-40℃

Functional Characteristics

Pour Point / ℃ ≤

-10

-20

-30

-40

-50

GB/T 3535

Kinematic Viscosity / (mm²/s)

40℃ ≤

0℃ ≤

-10℃ ≤

-20℃ ≤

-30℃ ≤

-40℃ ≤

 

 

 

12

1800

-

-

-

-

 

 

 

12

-

1800

-

-

-

 

 

 

12

-

-

1800

-

-

 

 

 

 

12

-

-

-

1800

-

 

 

 

12

-

-

-

-

2500

GB/T 265

 

 

 

 

 

 

 

NB/SH/T 0837

Water Content / (mg/kg) ≤

30/40

GB/T 7600

Breakdown Voltage (meet one of the following requirements) / KV

Untreated Oil ≥

Treated Oil ≥

 

 

 

 

 

 

30

 

70

GB/T 507

Density (20℃) / (kg/m³) ≤

895

GB/T 1884 and GB/T 1885

Dielectric Dissipation Factor (90℃) ≤

0.005

GB/T 5654

Refining / Stability Characteristics

Appearance

Clear and transparent, no sediment or suspended matter

Visual Inspection

Acid Value (as KOH) / (mg/g)

≤ 0.01

NB/SH/T 0836

Water-Soluble Acid or Alkali

None

GB/T 259

Interfacial Tension / (mN/m)

≥ 40

GB/T 6541

Total Sulfur Content (mass fraction) / %

No general requirement

SH/T 0689

Corrosiveness

Non-corrosive

SH/T 0804

Antioxidant Additive Content* (mass fraction) / %

Oil without antioxidant additive (U)

Oil with trace antioxidant additive (T)

Oil with antioxidant additive (I)

 

 

 

 

 

 

 

Not detectable

≤ 0.08

0.08~0.40

SH/T 0802

2-Furfural Content / (mg/kg)

≤ 0.1

NB/SH/T 0812

Operational Characteristics

Oxidation Stability (120℃)

1.2

NB/SH/T 0811

Test Time:

164h for oil without antioxidant additive (U)

332h for oil with antioxidant additive (I)

500h for oil with antioxidant additive (I)

Total Acid Value (as KOH) / (mg/g)

 

Sludge (mass fraction) / % ≤

0.8

 

Dielectric Dissipation Factor (90℃) ≤

0.500

GB/T 5654

Gas Evolution Rate / (mm³/min)

No general requirement

NB/SH/T 0810

Health, Safety and Environmental (HSE) Characteristics

Flash Point (Closed Cup) / ℃ ≥

 135

GB/T 261

Polycyclic Aromatic Hydrocarbon (PCA) Content (mass fraction) / % ≤

3

NB/SH/T 0838

Polychlorinated Biphenyl (PCB) Content (mass fraction) / (mg/kg)

Not detectable

SH/T 0803

Note 1: "No general requirements" means that whether or not the project is tested is determined through negotiation between the supplier and the buyer, and the detection limits are also determined through negotiation between the supplier and the buyer.

Note 2: Any items in the technical requirements marked as "no general requirements" or "whether to use this method for testing is determined through negotiation between the supplier and the buyer" are non-mandatory.

 

 

Product Advantages

  • Excellent heat dissipation: Fast heat conduction and low viscosity enable efficient heat transfer, keeping equipment at a stable working temperature.
  • Strong insulation performance: High dielectric breakdown voltage prevents short circuits and electric leakage in high-voltage systems.
  • Good oxidation stability: Resists sludge and acid formation, extending oil service life and reducing replacement frequency.
  • Wide temperature adaptability: Low pour point and high flash point work well in both cold and high-temperature environments.

 

Production Advantages

We adopt precision fractionation and strict quality control processes in production, with each batch of oil tested for key performance indicators. Our self-developed additive formula enhances the oil's comprehensive performance, and the automated production line ensures consistent product quality. We also use environmentally friendly production techniques, meeting international environmental and industrial standards.

 

Customer Reviews

"A reliable cooling oil for our 500kV pressure station—heat dissipation is great and equipment runs stably for over a year without oil change." — Power Engineering Co., Europe"Perfect insulation and cooling effects, solved our equipment overheating problem, and the after-sales service is very responsive." — Electrical Equipment Maintenance Co., Asia

 

SERVICES

  • Sample provision for performance testing before bulk purchase.
  • Professional technical support for oil selection and usage guidance.
  • Fast global shipping with reliable logistics partners and on-time delivery.
  • After-sales follow-up to solve product usage problems in time.

 

FAQ

  1. What is the service life of this cooling oil?It can be used for 3-5 years under normal working conditions of pressure stations.
  2. Is it compatible with other brand cooling oils?We do not recommend mixing, as it may affect performance; clean the system before replacement.
  3. How to store this oil properly?Store in a sealed container in a cool, dry place, away from direct sunlight and open fire.
  4. Does it meet international industrial standards?Yes, it complies with IEC 60296 and other major international electrical oil standards.
  5. Can it be used for all high-voltage pressure station equipment?It is suitable for transformers, switchgear and other core equipment of high-voltage electric pressure stations.
  6. How to test the oil performance during use?We provide professional testing methods and can also offer on-site testing service if needed.
  7. Do you provide oil replacement and maintenance guidance?Yes, our technical team can provide online guidance for oil replacement and equipment maintenance.
  • Ultra High Voltage Transformer Oil

Description

Technical requirements

Item

Quality Index

Test Method

Lowest Cold Start Temperature (LCSET)

0℃

-10℃

-20℃

-30℃

-40℃

Functional Characteristics

Pour Point / ℃ ≤

-10

-20

-30

-40

-50

GB/T 3535

Kinematic Viscosity / (mm²/s)

40℃ ≤

0℃ ≤

-10℃ ≤

-20℃ ≤

-30℃ ≤

-40℃ ≤

 

 

 

12

1800

-

-

-

-

 

 

 

12

-

1800

-

-

-

 

 

 

12

-

-

1800

-

-

 

 

 

 

12

-

-

-

1800

-

 

 

 

12

-

-

-

-

2500

GB/T 265

 

 

 

 

 

 

 

NB/SH/T 0837

Water Content / (mg/kg) ≤

30/40

GB/T 7600

Breakdown Voltage (meet one of the following requirements) / KV

Untreated Oil ≥

Treated Oil ≥

 

 

 

 

 

 

30

 

70

GB/T 507

Density (20℃) / (kg/m³) ≤

895

GB/T 1884 and GB/T 1885

Dielectric Dissipation Factor (90℃) ≤

0.005

GB/T 5654

Refining / Stability Characteristics

Appearance

Clear and transparent, no sediment or suspended matter

Visual Inspection

Acid Value (as KOH) / (mg/g)

≤ 0.01

NB/SH/T 0836

Water-Soluble Acid or Alkali

None

GB/T 259

Interfacial Tension / (mN/m)

≥ 40

GB/T 6541

Total Sulfur Content (mass fraction) / %

No general requirement

SH/T 0689

Corrosiveness

Non-corrosive

SH/T 0804

Antioxidant Additive Content* (mass fraction) / %

Oil without antioxidant additive (U)

Oil with trace antioxidant additive (T)

Oil with antioxidant additive (I)

 

 

 

 

 

 

 

Not detectable

≤ 0.08

0.08~0.40

SH/T 0802

2-Furfural Content / (mg/kg)

≤ 0.1

NB/SH/T 0812

Operational Characteristics

Oxidation Stability (120℃)

1.2

NB/SH/T 0811

Test Time:

164h for oil without antioxidant additive (U)

332h for oil with antioxidant additive (I)

500h for oil with antioxidant additive (I)

Total Acid Value (as KOH) / (mg/g)

 

Sludge (mass fraction) / % ≤

0.8

 

Dielectric Dissipation Factor (90℃) ≤

0.500

GB/T 5654

Gas Evolution Rate / (mm³/min)

No general requirement

NB/SH/T 0810

Health, Safety and Environmental (HSE) Characteristics

Flash Point (Closed Cup) / ℃ ≥

 135

GB/T 261

Polycyclic Aromatic Hydrocarbon (PCA) Content (mass fraction) / % ≤

3

NB/SH/T 0838

Polychlorinated Biphenyl (PCB) Content (mass fraction) / (mg/kg)

Not detectable

SH/T 0803

Note 1: "No general requirements" means that whether or not the project is tested is determined through negotiation between the supplier and the buyer, and the detection limits are also determined through negotiation between the supplier and the buyer.

Note 2: Any items in the technical requirements marked as "no general requirements" or "whether to use this method for testing is determined through negotiation between the supplier and the buyer" are non-mandatory.

 

 

Product Advantages

  • Excellent heat dissipation: Fast heat conduction and low viscosity enable efficient heat transfer, keeping equipment at a stable working temperature.
  • Strong insulation performance: High dielectric breakdown voltage prevents short circuits and electric leakage in high-voltage systems.
  • Good oxidation stability: Resists sludge and acid formation, extending oil service life and reducing replacement frequency.
  • Wide temperature adaptability: Low pour point and high flash point work well in both cold and high-temperature environments.

 

Production Advantages

We adopt precision fractionation and strict quality control processes in production, with each batch of oil tested for key performance indicators. Our self-developed additive formula enhances the oil's comprehensive performance, and the automated production line ensures consistent product quality. We also use environmentally friendly production techniques, meeting international environmental and industrial standards.

 

Customer Reviews

"A reliable cooling oil for our 500kV pressure station—heat dissipation is great and equipment runs stably for over a year without oil change." — Power Engineering Co., Europe"Perfect insulation and cooling effects, solved our equipment overheating problem, and the after-sales service is very responsive." — Electrical Equipment Maintenance Co., Asia

 

SERVICES

  • Sample provision for performance testing before bulk purchase.
  • Professional technical support for oil selection and usage guidance.
  • Fast global shipping with reliable logistics partners and on-time delivery.
  • After-sales follow-up to solve product usage problems in time.

 

FAQ

  1. What is the service life of this cooling oil?It can be used for 3-5 years under normal working conditions of pressure stations.
  2. Is it compatible with other brand cooling oils?We do not recommend mixing, as it may affect performance; clean the system before replacement.
  3. How to store this oil properly?Store in a sealed container in a cool, dry place, away from direct sunlight and open fire.
  4. Does it meet international industrial standards?Yes, it complies with IEC 60296 and other major international electrical oil standards.
  5. Can it be used for all high-voltage pressure station equipment?It is suitable for transformers, switchgear and other core equipment of high-voltage electric pressure stations.
  6. How to test the oil performance during use?We provide professional testing methods and can also offer on-site testing service if needed.
  7. Do you provide oil replacement and maintenance guidance?Yes, our technical team can provide online guidance for oil replacement and equipment maintenance.