GlobeCore Transformer Oil Purification Plant CMM 2.2


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Removes Water from 100 ppm down to 10 ppm and from 50 ppm to 5 ppm in a single pass (ASTM method D-1533)
Removes Particulate Matter to 5 microns as standard or down to 0.3 micron (optional)
Improves dielectric strength up to 75 kV

GlobeCore CMM 2.2 is a medium range Oil Purifier designed for removal of solid particles and free and dissolved water from transformer, lubricating, turbine and compressor oil. Depending on customer’s requirements, GlobeCore CMM 2.2 allows to process oil on tank to tank basis or directly on energized or de-energized transformer. Available in trolley or roadworthy trailer mounted, semi-automated, fully automated (PLC controlled) and explosion proof versions. Optional equipment includes moisture probes, flowmeter with totalizer and 0.3 micron fine oil filter.
№           Specifications                    Value
1 Production capacity, m3/h:
– thermo-vacuum mode 2,2
– heating and filtration mode 2,2
2 Treated oil parameters:
– water content, ppm, maximum 5
– purity class (ISO 4406), minimum 9 (-/15/12)
3 Nominal filtration rate, mkm 0,3… 5
4 Outlet oil temperature, °С 60
5 Oil Pressure on outlet, Mpa, minimum 0,2
6 Heater power consumption,kW, maximum 36
7 Total Power Consumption, kW 42
8 Electrical outlet parameters 50/60 Hz, V 380/220
9 Dimensions, mm, maximum length/width/height, mm 1500/1050/1700
10 Weight, kg, maximum 850


Indetification Key: 1 – cover; 2 – heating block cover; 3 – housing; 4 – coalescers; 5 – disperser; 6 – cover; 7 – heating element; 8 – measuring tube; 9 – temperature sensor; 10 – pipeline system; 11 – vacuum system connection; 12 – air inlet ; 13 – oil inlet; 14 – oil outlet; 15 – drainage; 16 – heater drainage; 17 – low level sensor;18 – high level sensor

Vacuum Chamber and Oil Heater
Vacuum Chamber and Heater Vessel and all internal parts are made of carbon steel and feature Coalescers, Oil Level Controller and Vacuum Gauge. Vacuum Chamber’s rigid design makes it suitable for stationary and mobile installation. Appropriate flexible connections are provided to the outlet pump and inlet pump to minimize negative effect of vibration during plant operation and transportation.
Coalescers – built-in coalescers are provided for the maximum exposure of oil to the effect of vacuum. Due to reduced pressure dissolved water and gases are vaporised through secondary chamber and filter into atmosphere.
Coalescer Filter is installed between Vacuum Chamber and Vacuum Pump to ensure that no oil is drawn into the Vacuum Pump.
Vacuum Gauge – is provided to monitor Vacuum level in the Vacuum Chamber.
Oil Level Controller – consists of two capacitive probes provided to maintain required level of oil in the Vacuum Chamber.
36 kW Oil Heater has two stage heating facility with 18 kW of power each. A low watt density heating elements (1.2 W/cm2) are used to prevent heat degradation of oil. The heater is controlled be electronic temperature controller.

A Mesh Strainer is provided to remove large particles that could cause damage to the Inlet Pump. 5 microns Coarse Filter is installed on entry to the Vacuum Chamber. Oil receives its final treatment by passing through the Fine Filter designed to remove 99.9% of particles larger than 2 microns or 0.3 micron (optional).


Vacuum System
Rotary Vane Positive Displacement Pump
Pumping Speed 72 m3/h
Ultimate pressure 0.5 mbar
globecore oil purification plant
Inlet and Outlet Oil Pumps
Two gear pumps with power consumption of 1.5 kW and capacity of 2.4 m3/h are utilized to draw oil in and out of the vacuum system. All electric motors are protected by overloads.

Alarms and Interlocks
GlobeCore’s CMM plants feature the following safety devises which ensure simple and reliable operation and will safely shut down the system in case of any alarm situation:
High Level Sensor is interlocked with Inlet pump. It will stop the Inlet Pump when oil is detected.
Low Level Sensor is interlocked with Outlet Pump. It will stop the Outlet Pump when low level is detected.
Flow Sensor only activates the Heater when oil flow is detected. If oil flow is interrupted during operation flow sensor will activate sound and light alarm and safely shut down the plant.
Overloads – all motors are protected by overloads.
Alarms – sound and light alarm with silence button will alert plant’s operator of any emergency situations.

Instrumentation and Controls
The Control Panel is a dust proof enclosure to IP 54 featuring the following elements:
Manometers – are installed to monitor the state of Coarse and Fine Filters.
Vacuum Meter is provided to moninitor vacuum level in the chamber.
Temperature controller – takes an input from temperature sensor and connected to a control element of the heater.
Power and Heating Indicators and Switches, Oil Pump Switches and PLC with Mnemonic Diagram (optional).
Emergency Stop Button – is provided for safe shut down of the plant in case of emergency.

GlobeCore CMM 2.2 Flow Diagram

Identification Key: CV – vacuum column; Р1 – oil inlet pump; K10 – valve dn 40; Р2 – oil outlet pump; ТР1- thermostat; VP – vacuum pump;K1; K11 – valves Dn 25; K2 – three way valve Dn 20; K3-K9, K14 – valves Dn15;K12-K13 – valves dn20; LS – level sensors; R – moisture separator; B – vacuum gauge; М1, М2 – manometers; CL1- oil inlet ; CL2– oil outlet; PF- mesh filter; SV – return valve; FV- moisture separator; ; F1, F2 – cartridge filters

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