CMM-12R Archives - GlobeCore

The primary focus of GlobeCore is the development and production of transformer oil regeneration equipment. Among the methods of regeneration the most widely used is adsorption treatment. It is particularly effective for processing the oils containing dissolved products of aging. The adsorbent becomes gradually saturated and requires recovery of its properties. Generally, the reactivation process takes 18-20 hours.

But not all of our customers have the opportunity to allocate the time for sorbent reactivation, because the same time can be spent to process several tens of tons of transformer oil. Therefore, GlobeCore has developed a new CMM-12R plant which on the one hand performs adsorption treatment, and on the other hand, it works round the clock without breaks for the recovery of sorbent.

This year GlobeCore has sold several of these plants. The last commissioning took place on August 25 in Quito (Ecuador). The CMM-12R unit was connected to a transformer without switching the transformer offline. Ecuador is a mountainous country, and the GlobeCore plant had to work in high altitudes, which had no effect on the quality of oil recovery: the results were consistently high. In particular, it was possible to reduce dielectric loss tangent from 11% to 0.7% at 90 ° C, as well as to increase the breakdown voltage up to 80 kV in the first test cycle.

The CMM-12R unit is designed for regeneration of insulating oil and maintenance of power transformers. The capacity of this equipment is 1,000 liters / hour. The equipment allows to:

Remove dissolved gas;
Remove free and dissolved water;
Remove solids;
Remove oil decay products;
Evacuate a transformer;
Heat a transformer and its active part and winding with hot oil;
Remove sludge from transformer windings

The CMM-12R unit is a frame structure that includes a degassing section, a regeneration section and an operator room. The degasser performs filtration, heating and vacuum drying of oil, and the regeneration section performs restoration of oil chemical properties. Also, the regeneration section performs multiple reactivations of sorbent. The operator room has a control cabinet, a desk etc.

To get started, the equipment is filled and connected to the transformer via the TSS security system. The next step is to warm up the unit and bleed the air.

During regeneration, the oil is pumped through the lower port of the transformer and fed into the degassing section. The degasser filters and heats the oil. The heated oil flows into the regeneration section. After regeneration, the oil reenters the degasser. The degassed oil goes through final fine filtration. Then it is pumped back to the transformer.

The CMM-12R unit has the following advantages:

Round the clock regeneration of transformer oil without breaks for sorbent replacement;
Online and offline transformer maintenance;
Manual and automatic control;
Control via GSM-module (mobile phone);
Condition monitoring of all major components
Operator room equipped with air conditioning and a computer;
Operated by 1-2 operators.

If you value your time, the CMM-12R unit is for you. With this equipment you can easily regenerate transformer oil 24 hours a day!

In mid-November 2016, employees of our company commissioned the GlobeCore CMM-12R oil regeneration unit in the city of El Paso, Texas, USA.

This equipment is designed for the complete regeneration of dielectric transformer insulating oil and can extend the service life of the power transformer up to 20 years or longer.

The CMM-12R unit processes oil with a flow rate capacity up to 4 m3/ 1059 gals. per hour. This equipment can regenerate and process insulating oils at remote locations while the transformer is energized, or offline. One man working alone can easily hook the unit up to a power transformer within minutes. Once hooked up and operating, the unit is fully capable of removing water, moisture, and contamination the core, windings, and solid insulation with the use a renewable Fuller’s Earth sorbent.

Among the many advantages of the GlobeCore CMM-12R unit is the ability reactivate the sorbent multiple times thereby eliminating the need to stop and unload and reload the sorbent material.. For the convenience of the operator, a special climate controlled room is provided that equipped with a computer.

At the request of the customer, additional options can be added such as: remote management/monitoring of the unit by means of mobile communication and internet connections.

GlobeCore CMM-12R Technical Specifications

Parameter description			Value
1. Recommended flow rate m3/h, not more			4
2. Total weight of the sorbent in the unit, kg, not less			1600
3. Amount of regenerated oil with acidity 0,15 mg KOH/g for one cycle, liters, not less			6400
4. Processed oil parameters:
		Filtration rating, micron, not more	3
		Acid number, mg KOH/g in accordance with IEC 296; ASTM D-664	0.01
		Corrosive sulfur in accordance with ISO 5662; ASTM D-1275	absent
		Surface tension, N/m, at 25ºС as per ISO 6295; ASTM D-2285	45
		Dielectric loss tangent at 90ºС in accordance with IEC 247; ASTM D-924	0.001
5. Output pressure, bar, not less			1.5
6. Maximal input power, kW, not more			45
7. Electric current parameters
		Voltage, V	380 to 485
		alternating with frequency, Hz	50/60
8. Outside dimensions, mm, not more
	Width		2090
	Height		2102
	Length		5150