Filter transformer oil at room temperature, saving 1.16 million yuan in electricity cost

Filter transformer oil without heating - can transformer oil be filtered well under online normal temperature?

Many users have raised such doubts, saying that they have never heard of "normal temperature filter transformer oil", and they do not believe it. Then he asked: What principle is used to filter transformer oil at room temperature? What are the benefits of filtering transformer oil at room temperature?

The ZYA double stage vacuum oil filter developed by our institute adopts the latest electronic processing technology, which strengthens the vacuum separation effect, greatly improves the oil filtering speed, and realizes the transformer oil filtering without heating or with less heating. Equipped with online micro water tester, the oil filtering can reach the qualified standard once, which reduces the oil filtering time and saves more than 85% of the power consumption cost. The configured electric heating can also meet the special requirements of hot oil circulation.

Normal temperature or low temperature filter transformer oil has the following advantages:

First, the oil filtering speed is fast. It is 2~5 times faster than ordinary oil filter.

Second, the filtered transformer oil has stable quality and is not easy to absorb moisture in the air. It is suitable for long-term storage and its performance is not easy to decay.

Third, saving the cost of power consumption is a considerable income, because the cost saved is the net profit of the enterprise and does not need to pay taxes.

Fourth, when the on-site oil filtering and power supply are insufficient, in order to meet the requirements of high temperature oil filtering, high-power diesel generators have to be equipped. The fuel consumption, transportation and working noise increase the difficulty of on-site oil filtering. If the oil filter can filter oil at normal temperature, users can save the generator and reduce the cost in equipment management, operation and maintenance.

Fifth, if you ask: How much electricity is saved by one high efficiency oil filter to filter transformer oil at room temperature? This depends on its oil filtering time. The operating cost of vacuum oil filter is mainly the cost of electric heating. The existing conventional vacuum oil filter must be heated at high temperature to meet the oil filtering index, so some oil filter plants are equipped with higher heating power.

For example, a high-end or imported 200 type vacuum oil filter has a general electric heating power of 250KW and a motor power of more than 10KW. The average electric heating power actually used in the oil filtering process is above 200KW. If the user has more transformer oil filtering, such as large transformer plants, transformer oil production or distribution companies, transformer installation companies, etc., the oil filtering time of one year is 70%, and the electricity charge is calculated by Kwh/1kwh/0.95 yuan, then its electric heating cost is calculated as:

two hundred × twenty-four × three hundred and sixty-five × 70% × 0.95=1165080 yuan ≈ 1.16 million yuan

If the normal temperature filter oil is used, the 1.16 million yuan electricity cost will be saved, increasing the net profit of the enterprise by 1.16 million yuan. Of course, how much electricity users save depends on the quantity of oil filters and the current electricity price.

Example 1: A user of our institute purchases ZYA-250 two-stage vacuum oil filter to filter transformer oil at room temperature, and the record is as follows:

15t transformer oil was filtered at 24.5 º C on October 20, 2009. After 4 hours, the water content in the oil reached 6PPM, and other indicators were qualified (the same below).

Example 2: A user of our institute purchases ZYA-300 two-stage vacuum oil filter to filter transformer oil at room temperature, and the record is as follows:

Filter 15t transformer oil at room temperature (27.5 º C) on 09-9-2. After 2.5 hours, the oil contains 6PPM of water.

Example 3: A user of our institute purchased ZYA-200 two-stage vacuum oil filter to filter transformer oil at room temperature, and the record is as follows:

Filter 31t transformer oil at room temperature (26 º C) on October 22, 2009. After 16.5h of filtering, the water content in the oil reaches 5PPM.

Example 4: The record of another user's purchase of low temperature filter transformer oil of ZYA-500 double vacuum oil filter is as follows:

On December 15, 2009, 60t transformer oil was filtered without heating (the user was a transformer oil manufacturer, the crude oil temperature before filtering was 38 º C, and the water content was 19PPM). The filtering speed was 500L/min. 60t transformer oil was filtered in three hours, and the water content in the filtered oil was 8PPM.

Example 5: A user in Xi'an purchased ZYA-150 double stage vacuum oil filter due to lack of power (only 20KW can be used), and the transformer oil was filtered at room temperature for a long time, eliminating many procedures and costs for increasing power capacity.

Many customers in Chengdu, Yunnan, Guangdong, Jiangsu, Zhengzhou, Jinan, Xi'an and other places have adopted our normal temperature oil filters, including Jinchang 750KV substation in Gansu, Anxi 750KV substation in Gansu, and Huanghe 750KV substation in Ningxia, which have achieved remarkable results. The normal temperature oil filter is being accepted by more and more customers, and is willing to recommend and purchase again.

Pursuing technological progress, improving work efficiency and reducing costs is the goal of continuous improvement of enterprises.

Chongqing Qianguang Electromechanical Research Institute

Luo Gushi 13708345970

Address: No. 129, Daping Main Street, Chongqing

Tel.: 023-68800149 68811964 Fax: 68578963