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KEY-147 High-Purity Vegetable Insulating Oil

KEY-147 High-Purity Vegetable Insulating Oil

Product Highlights

High purity	Low impurities and moisture	Ultra-low acid value
Good insulation	Good lubricity	Good biodegradability

Product Introduction

KEY-147 high-purity vegetable insulating oil, as a new generation of environmentally friendly insulating medium, has significant advantages over traditional mineral oil:

Excellent environmental protection and safety: It has an extremely high biodegradability rate, so it will not pollute soil and water sources in the event of a leak; and it has an extremely high flash point (usually above 300℃), making it difficult to burn, which greatly reduces the risk of transformer fires and explosions. It is a "green and fire-safe" insulating oil.
Excellent electrical properties: Vegetable insulating oil has a higher dielectric constant (typically 3.0-4.0), which is closer to that of insulating paper (about 4.4). It can effectively improve the electric field distribution of the insulation system, slow down the aging rate of the insulating paper, and thus extend the service life of the transformer.
Natural "gas-absorbing" properties: Plant-based insulating oils have a strong ability to dissolve gases (especially oxygen and moisture, which are more soluble than mineral oils), which can effectively slow down the aging and hydrolysis of insulating paper and reduce the risk of partial discharge inside transformers.
Renewable Resources: Derived from renewable vegetable oil raw materials, it aligns with global energy sustainability strategies and helps companies achieve their "carbon neutrality" goals.

Physicochemical parameters

Technical indicators		High-energy insulating oil	Test methods	ASTM D6871 requirements
Breakdown voltage（kV/2.5mm)		78	GB/T 507	≥35
Dielectric loss factor（%）	25℃	0.05	GB/T 5654	≤0.2
Dielectric loss factor（%）	100℃	0.78	GB/T 5654	≤4
Relative permittivity（25℃）		3.10	GB/T 5654	—
Volume resistivity（Ω.cm@25℃)		4.31 X 10¹³	DL/T 421	_
relative density（g.cm^-3@15℃)		0.92	ASTM D1298	≤0.96
Color/Number		L0.5	ASTM D1500	≤1.0
Acid value（mg KOH/g）		0.015	IEC 62021-3	≤0.06
kinematic viscosity（mm²/S）	40℃	35.67	GB/T 265	≤50
kinematic viscosity（mm²/S）	100℃	8.151	GB/T 265	≤15
Flash point (open cup) / °C		322	GB/T 3536	≥275
Ignition point / °C		360	GB/T 3536	≥300
Pour point / ℃		-21	GB/T 3535	≤-10
Gas evolution rate (μL/min)		-44.9	GB/T 11142	≤0
Corrosive sulfur		Non-corrosive	SH/T 0804	Non-corrosive
Polychlorinated biphenyls (PCBs) content (mg/kg)		Not detected	SH/T 0803	Not detected
Oxidation stability (120℃, 48h) NB/SH/T 0811
Total acid value (as KOH) mg/g		0.04	_	≤0.6
Kinematic viscosity （40℃）mm²/S?	Before the reaction	35.76	GB/T 265	The increase from the initial value is ≤30%.
Kinematic viscosity （40℃）mm²/S?	After the reaction	36.14	GB/T 265	The increase from the initial value is ≤30%.
Dielectric loss factor (90℃)		0.0734	GB/T 5654	≤0.5

Packaging Specifications

5L、10L、15L、20L、25L、50L、100L、150L

Storage and Transportation

Transport as non-hazardous chemicals and non-corrosive chemicals.

Store in a cool, dry place away from light, heat, and moisture, and keep sealed.

Shelf life is 12 months when sealed.

Single packages must not be stacked more than two layers, and the bottom layer must be secured with a non-slip tray to prevent squeezing, deformation, or tipping.