Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
Product Description
#20X transformer oil is suitable for distribution transformers with a voltage level of 220kV and below, with a minimum cold operating temperature (LCSET) of -10ºC, power transformers, power transformers, reactors and oil-filled electrical equipment with similar requirements. It is suitable for transformers with a voltage level of 220kV and below and oil-filled electrical equipment with similar requirements, and the use environment is above -10ºC.
Product Parameters
Item
|
GB 2536-2011
1-10ºC (General)
|
Test Method |
Value |
| China |
International |
| LCSET/ºC |
-10 |
GB2356 |
IEC 60296 |
- |
| Functional characteristics |
| Kinematic viscosity,(40ºC),mm2/s |
≤12 |
GB/T 265 |
IS0 3014 |
9.864 |
| Kinematic viscosity,(-10ºC),mm2/s |
≤1800 |
GB/T 265 |
IS0 3014 |
164.2 |
| Tilt point/ºC |
≤-20 |
GB/T 3535 |
IS0 3016 |
-27 |
| Water content/(mg/kg) |
≤30 |
GB/T 7600 |
IEC 60814 |
20 |
| Breakdown voltage / (kV) |
Unprocessed |
≥30 |
GB/T 507 |
IEC 60156 |
38 |
| Processed |
≥70 |
GB/T 507 |
IEC 60156 |
>70 |
| Density (20ºC)/(kg/m3) |
≤895 |
SH/T 0604 |
ISO 12185 |
883.8 |
| Dielectric loss factor (90ºC) |
≤0.005 |
GB/T 5654 |
IEC 60247 |
<0.001 |
| Refining/Stability |
| Appearance |
Clear and transparent, without sediment and suspended matter |
GB 2536 |
IEC 60296 |
Clear and transparent, without sediment and suspended matter |
| Acid value/(mgKOH/g) |
≤0.01 |
NB/SH/T 0836 |
IEC 62021-1 |
<0.01 |
| Interfacial tension/(mN/m) |
≥40 |
GB/T 6541 |
ASTM D971 |
45 |
| Corrosive sulfur |
Non-corrosive |
SH/T 0804 |
DIN 51353 |
Non-corrosive |
| Total sulfur content (mass fraction)% |
No general requirements |
SH/T 0689 |
ASTM D5453 |
<0.01 |
| Water-soluble acid or alkali |
None |
GB/T 259 |
|
None |
| Antioxidant additive content/% |
0.08-0.40 |
SH/T 0802 |
IEC 60666 |
0.3 |
| 2-furfural content/(mg/kg) |
≤0.1 |
NB/SH/T 0812 |
IEC 61198 |
<0.05 |
| Operating characteristics |
| Oxidation stability (120ºC, 500h) |
|
|
|
|
| Total acid value/(mgKOH/g) |
≤1.2 |
NB/SH/T 0811 |
IEC 61125C |
0.12 |
| Oil sludge (mass fraction)/% |
≤0.8 |
NB/SH/T 0811 |
IEC 61125C |
0.02 |
| Dielectric loss factor (90ºC) |
≤0.500 |
GB/T 5654 |
IEC 60247 |
0.053 |
| Health, Safety and Environmental Features |
| Flash point (closed cup)/ºC |
≥135 |
GB/T 261 |
ISO 2719 |
|
| Condensed ring aromatic hydrocarbons (PCA) content/% |
≤3 |
NB/SH/T 0838 |
IP 346 |
|
| Polychlorinated biphenyls (PCB) content/(mg/kg) |
Not detected |
SH/T 0803 |
IEC 61619 |
Not detected |
Main Features
1. Preferred cycloalkane crude oil with low aromatics, low sulfur content and low freezing point is used as raw material;
2. Excellent electrical insulation performance, high breakdown voltage and low dielectric loss factor can effectively prevent discharge and power loss under high voltage electric field, and meet stringent insulation performance requirements;
3. Higher cycloalkane and appropriate aromatic content can dissolve acidic sludge formed during long-term operation of equipment or overheating failure to avoid damaging solid insulation materials and affecting heat transfer and insulation performance;
4. Low viscosity and viscosity index provide effective cooling and heat transfer;
5. Excellent thermal stability and oxidation stability, which can prevent oil aging to the greatest extent, extend the service life of equipment and reduce maintenance costs;
6. Adopt advanced processing technology, environmentally friendly, and do not contain polyfluorinated biphenyls.
Certifications
Audited Supplier 
#20X transformer oil is suitable for distribution transformers with a voltage level of 220kV and below, with a minimum cold operating temperature (LCSET) of -10ºC, power transformers, power transformers, reactors and oil-filled electrical equipment with similar requirements. It is suitable for transformers with a voltage level of 220kV and below and oil-filled electrical equipment with similar requirements, and the use environment is above -10ºC.
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