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.
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. |
||||||||
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.
"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
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. |
||||||||
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.
"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