Insulating Oil For Transformers I-40
The insulating prowess of this product is unparalleled, boasting a significantly higher dielectric strength compared to air. The immersion of insulating materials in the oil not only elevates their insulating capabilities but also safeguards them from the detrimental effects of moisture. Transformer oil thus plays a pivotal role in averting short-circuit failures and ensuring the uninterrupted functioning of electrical equipment.
Product Details：Insulating Oil For Transformers I-40
With its superior thermal stability, transformer oil significantly reduces the internal temperature of equipment during extended operation, enabling its consistent performance. As electrical equipment runs for long hours, it generates substantial internal heat. Transformer oil, serving as a cooling agent, efficiently carries the heat away through convectional movements and ultimately dissipates it via the radiator.
PARAMETER：
Sports Event | GB2536-11 I-40°C (general purpose) Quality indicators | Typical properties | Test Methods |
Minimum Cold Commissioning Temperature (LCSET)/°C | -40 | - | - |
Functional characteristics | |||
Pour Point/°C | ≯-50 | -55 | GB/T 3535 |
Kinematic viscosity (40°C)/(mm²/s) | ≯12 | 9.0 | GB/T 265 |
Kinematic viscosity (-40°C)/(mm²/s) | ≯1800 | 1500 | |
Water content/(mg/kg) | ≯30 | 19 | GB/T 7600 |
Breakdown voltage/kV | ≮30 | 66 | GB/T 507 |
Density (20°C)/(kg/m³) | ≯895 | 886.0 | SH/T 0604 |
Dielectric loss factor (90°C) | ≯0.005 | 0.0008 | GB/T 5654 |
Refining/stabilizing properties | |||
exterior condition | clear and transparent | clear and transparent | visual assessment |
Acid value (in KOH)/(mg/g) | ≯0.01 | <0.01 | NB/SH/T 0836 |
Water-soluble acids or bases | not have | not have | GB/T 259 |
Interfacial tension/(mN/m) | ≮40 | 46 | GB/T 6541 |
corrosive sulfur | non-corrosive | non-corrosive | SH/T0804 |
Content of antioxidant (mass fraction)/% | 0.08~0.40 | 0.30 | NB/SH/T0802 |
2-Furfural content/(mg/kg) | ≯0.1 | <0.05 | NB/SH/T0812 |
Operational characteristics | |||
Oxidation stability (120°C) | - | - | NB/SH/T 0811 |
Test time: 500h | - | - | |
--Total acid value (in KOH)/(mg/g) | ≯1.2 | 0.18 | |
--Oil sludge (mass fraction)/% | ≯0.8 | 0.03 | |
--Dielectric loss factor (90°C) | ≯0.500 | 0.055 | GB/T 5654 |
HSE Characteristics | |||
Flash point (closed)/°C | ≮135 | 142 | GB/T 261 |
PCA content (mass fraction)/% | ≯3 | <3 | NB/SH/T 0838 |
Polychlorinated biphenyl (PCB) content/(mg/kg) | undetectable | not detected | SH/T 0803 |
1. Core Applications of Transformer Oil
(1) Transformer's Vital Component: Transformer oil constitutes a pivotal segment of transformers, facilitating insulation and thermal regulation of components like windings and cores.
(2) Ensuring Safe Operation: It adeptly establishes electrical barriers, averting electrical arcs and shocks, while concurrently dissipating heat to uphold seamless transformer functioning.
(3) Versatile Utility in Electronics: Beyond transformers, this oil finds applicability in insulating and cooling diverse electrical apparatus, encompassing cables, switchboards, reactors, and circuit breakers.
(4) Power Electronics Reliance: In the realm of power electronics, particularly with power inverters and capacitors, transformer oil serves as a crucial element for insulation and thermal management.
(5) Systemic Maintenance Support: Transformer oil holds significant sway in the preservation and upkeep of power systems, aiding in equipment cleansing and contaminant removal. Moreover, through intricate chemical and physical evaluations, it aids in prognosticating equipment health and preempting malfunctions.
2. Performance characteristics of transformer oil
(1) Insulation performance
Transformer oil has high insulating property, which can effectively isolate the electric current in electrical equipment and prevent electric shock and electric arc from occurring.
(2) Thermal stability
Transformer oil can maintain stability in high temperature environment, not easy to decompose or deteriorate, to ensure the normal operation of the transformer.
(3) High flash point
Transformer oil has a high flash point, can reduce the risk of fire in case of accident.
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