Description
The 1092092005 is the 110 kW drive motor for oil-injected screw compressors on a 380 V, 50 Hz supply. It is a three-phase induction motor of the HK 280M1-4 type, built on the 280M frame, and it turns the compressor element at the speed the element is designed to run at.
The unit is ordered by plate data rather than by output alone, because two motors can share an output figure and still differ in frame, supply and winding.
What the 1092092005 Motor Is
The 1092092005 sits in the drive line of an oil-injected screw compressor, taking the electrical supply and turning it into shaft torque.
The Item Record
The item record carries the motor under the number 1092092005, with MOTOR FOR OIL INJECTED SCREW COMPRESSORS as its description. The number is the line the order travels under, so the same unit is picked whether the order is placed by code or by description.
The description fixes the family and the plate fixes the unit, so the order is placed against both.
Where It Fits
In the GA range of oil-injected machines a 110 kW drive is the one fitted to the GA 110 class. The motor is matched to that drive line by output, frame and supply together, and the machine record confirms the fitment for a given unit.
Machines in this class stay on load for long periods, and the drive is sized for that pattern of work.
The Frame, the Type Code and the Mounting
The mechanical side of the 1092092005 is described by its type, its frame and the way it bolts to the machine, and those three decide how much room a change needs and how the heat leaves the housing.
Reading the Type Code
The type HK 280M1-4 opens with the frame designation 280M. The figure 280 is the shaft height in millimetres that the IEC frame size carries, and the letter that follows describes the length of the housing and its fixing pattern.
The figure at the end gives the pole count, and the four-pole winding it marks is what sets the plate speed of the 1092092005.
What the Frame Carries
The frame of the 1092092005 holds the stator and the rotor in line across the air gap, carries the bearings that locate the shaft, and its surface is the path the heat leaves by.
A frame of the 280M size is a heavy casting, and the unit stands at 688 kg net on the plate.
The Standard Behind the Plate
The 1092092005 is built to IEC 60034-1 and carries the CE mark. That standard fixes how the ratings on a plate are stated and how far a delivered unit is allowed to sit from them.
IM B5 and the Register Fit
The unit is recorded as IM B5, which describes how it presents itself to the machine: by a flange with through holes rather than by feet. The motor hangs on that flange, and the face and its register are what bring the shaft into line with the element it drives.
The face and the register of the 1092092005 are cleaned and checked before the unit goes on, and the bolts are drawn down evenly so the flange sits square.
Alignment and the Drive Joint
A flange-mounted drive is coupled directly to the element it turns, so the two shafts have to sit on one line. Clean and true faces are what make that happen without shimming.
The drive joint is examined while the line is open, because a worn joint puts a load on the bearings of a new motor from its first hour of running.
The Electrical Data on the Plate
The plate of the 1092092005 carries the supply figures it is built for, together with the two figures that describe how it uses the power the plant pays for.
Output, Voltage and Current
The 1092092005 is rated 110 kW at 380 V, 50 Hz, with a full load current of 206 A. The output is the mechanical power at the shaft, the voltage and frequency describe the supply the winding is built for, and the current is what the circuit has to carry.
The 206 A figure is the one the protective device and the cable are matched to.
The Four-Pole Speed at 1485 r/min
The plate gives the rated speed of the 1092092005 as 1485 r/min. On a 50 Hz network a four-pole winding produces a rotating field at 1500 r/min, and the 15 r/min between that figure and the loaded speed is the slip of the induction machine.
Slip is what allows the rotor to develop torque, and at this size it is held to a small fraction of the field speed.
The Delta Connection
The winding of the 1092092005 is recorded as delta, and the link bars in the terminal box are set to match the plate before the supply is switched on. That setting is checked when the motor first goes onto a network and again if the machine is moved to a different one.
The 94.5% Efficiency Figure
The plate records the efficiency of the 1092092005 as 94.5% at its rated point. Efficiency is the ratio of the mechanical power at the shaft to the electrical power taken at the terminals, so the difference is the loss the motor turns into heat.
At 110 kW that difference is worth attention on a machine that runs for long hours, since heat leaving a winding through the frame is heat the plant has already paid for.
The 0.87 Power Factor
The power factor of the 1092092005 is 0.87, the ratio between the active power the motor converts and the apparent power the supply has to be able to carry.
The figure matters when the supply is planned rather than when the motor is ordered, because cables and protection are sized against the apparent power.
Bearings: The 6317 C3 Designation
The plate of the 1092092005 names the bearings at both ends of the shaft, and that designation is worth reading before any work is planned on the drive.
What the Number Means
Both ends are recorded as 6317 C3. The first part names a single row deep groove ball bearing of the 63 series, a design that carries radial load and also takes axial load in both directions.
The bearing number and the clearance suffix together are the full identification: a bearing ordered by the 6317 figure alone is not the same part the plate calls for.
C3 Clearance and Heat
The C3 suffix describes the radial internal clearance, a clearance greater than the normal class. It is the small movement between the rolling elements and the raceways before the bearing is loaded, and a motor of this size needs that room.
The inner ring warms and grows before the outer ring does, and the extra clearance keeps the bearing from being pinched as the two rings come up to working temperature.
Bearing Care on a Compressor Drive
The bearings are the parts most linked to the running life of the motor, carrying the weight of the rotor and the load the joint passes to the shaft.
Noise and vibration are the signs read first, and a rise in vibration measured at the bearing housing is the signal to look at the bearings of the 1092092005.
Handling the 688 kg Unit
The 1092092005 is a heavy machine with a machined shaft end, and the way it is stored and lifted decides how the change runs.
Lifting and Storage
The unit is handled on slings around the frame, never by the shaft end or the terminal box. It measures 1380 mm long, 980 mm wide and 1130 mm high as packed and weighs 750 kg in that state against 688 kg net on the plate.
A motor that waits before it is fitted is kept dry, off the floor and clear of vibration, with the shaft end protected and the rotor turned by hand from time to time.
Before the Supply Is Connected
The plate is checked against the order before the unit leaves the store: type, output, supply and frame from the plate of the 1092092005 against the record of the machine it is going into.
With the machine stopped, isolated and locked off, the terminal box is opened and the supply proved dead. The winding connection is checked against the plate, the terminations are checked for tightness and cleanliness, and the cover goes back on.
Ordering the 1092092005 Through Seadweer
A drive motor is ordered by plate data, because an output figure on its own does not describe the supply, the frame or the shaft end.
The Machine Record Check
Send Seadweer the model and the serial number of the machine, and the team checks the machine record against the 1092092005 before the quotation is prepared.
What the Quotation Repeats
The quotation repeats the item data of the 1092092005: the description, the motor type, the electrical ratings and the physical figures, so the change can be planned without a second enquiry.
Technical Specifications
The tables below collect the identification, electrical and mechanical data of the 1092092005 as the item record and the nameplate state them.
Part Identification
| Item number | 1092092005 |
| Alternate number | 3002616805 |
| Description | Motor for oil-injected screw compressors |
| Motor type | HK 280M1-4 |
| Rated output | 110 kW |
| Frame | 280M |
Electrical Data
| Rated voltage | 380 V, three-phase |
| Rated frequency | 50 Hz |
| Full load current | 206 A |
| Rated speed | 1485 r/min |
| Power factor | 0.87 |
| Efficiency at rated point | 94.5% |
| Winding connection | Delta |
| Duty | S1, continuous |
| Insulation class | Class F |
| Protection class | IP55 |
| Ambient temperature | Up to +46 C |
| Standard | IEC 60034-1, CE |
Mechanical Data
| Mounting | IM B5, flange |
| Bearings, drive end | 6317 C3 |
| Bearings, non-drive end | 6317 C3 |
| Dimensions (L x W x H) | 138 x 98 x 113 cm |
| Weight as packed | 750 kg |
| Net weight | 688 kg |
FAQ
What is the 1092092005?
The 1092092005 is a 110 kW drive motor for Atlas Copco oil-injected screw compressors on a 380 V, 50 Hz supply. It is a three-phase induction motor of the HK 280M1-4 type, built on the 280M frame.
Which machines use the 1092092005?
A 110 kW drive in the GA range is the one fitted to the GA 110 class of oil-injected screw compressors. The machine record confirms the fitment for a given unit, because the drive is matched by type, frame and supply rather than by output alone.
What are the electrical ratings of the 1092092005?
The motor is rated 110 kW at 380 V and 50 Hz, with a full load current of 206 A and a rated speed of 1485 r/min. The power factor is 0.87, the efficiency at the rated point is 94.5% and the winding is connected in delta.
What bearings does the 1092092005 use?
Both ends of the shaft carry a 6317 C3 bearing. The C3 suffix stands for a radial internal clearance greater than the normal class, which gives the bearing room for the expansion that comes with a warm inner ring.
Is the 1092092005 the same motor as the 3002616805?
The two numbers identify one motor. The 1092092005 is the number the item record carries and the 3002616805 is the second reference beside it, so an order can be written against either of them.
How do I order the 1092092005?
Send Seadweer the model and the serial number of your machine, and the team checks the machine record against the 1092092005 before the quotation is prepared.
More Motors Available
Further Atlas Copco Motors can be supplied on request. Have a look at the table below, or get in touch with us for more information.
| Part Number | Part Name | Part-Number |
|---|---|---|
| 1080292747 | MOTOR 37/45/50/55KW | 1080-2927-47 |
| 1080292752 | MOTOR 37KW 400V | 1080-2927-52 |
| 1080292771 | MOTOR 55KW 400V VSD | 1080-2927-71 |
| 1080292964 | MOTOR | 1080-2929-64 |
| 1080292994 | MOTOR | 1080-2929-94 |
| 1080293074 | MOTOR | 1080-2930-74 |
| 1080293702 | MOTOR-FAN | 1080-2937-02 |
| 1080294264 | MOTOR | 1080-2942-64 |
| 1080294268 | MOTOR | 1080-2942-68 |
| 1080294371 | MOTOR | 1080-2943-71 |
| 1080294484 | MOTOR | 1080-2944-84 |
| 1080294674 | MOTOR 4.16KV | 1080-2946-74 |
| 1080294771 | MOTOR | 1080-2947-71 |
| 1080294774 | MOTOR | 1080-2947-74 |
| 1080295315 | MOTOR | 1080-2953-15 |
| 1080295661 | MOTOR | 1080-2956-61 |
| 1080295735 | MOTOR.. | 1080-2957-35 |
| 1080296543 | MOTOR | 1080-2965-43 |
| 1080296712 | MOTOR 5.5KW | 1080-2967-12 |
| 1080301901 | MOTOR | 1080-3019-01 |
| 1080302001 | MOTOR | 1080-3020-01 |
| 1080302502 | MOTOR | 1080-3025-02 |
| 1080302503 | MOTOR | 1080-3025-03 |
| 1080302504 | MOTOR | 1080-3025-04 |
| 1080303301 | MOTOR-FAN | 1080-3033-01 |
| 1080303601 | MOTOR-FAN | 1080-3036-01 |
| 1080303701 | MOTOR-FAN | 1080-3037-01 |
| 1080303931 | MOTOR 3,7KW 230V 60H | 1080-3039-31 |
| 1080304661 | MOTOR | 1080-3046-61 |
| 1080304710 | MOTOR 1.35KW 230V 60 | 1080-3047-10 |
| 1080304711 | EL.MOTOR 1.35KW | 1080-3047-11 |
| 1080304801 | MOTOR-DRIVE | 1080-3048-01 |
| 1080304802 | MOTOR-DRIVE | 1080-3048-02 |
| 1080304904 | MOTOR-DRIVE | 1080-3049-04 |
| 1080305305 | MOTOR 1.5KW 230/60/S | 1080-3053-05 |
| 1080305306 | MOTOR 2.2KW | 1080-3053-06 |
| 1080305307 | MOTOR 3.7KW 230/60/S | 1080-3053-07 |
| 1080305312 | MOTOR 2.2KW 230/50/S | 1080-3053-12 |
| 1080305502 | MOTOR 2.2KW 230V 60H | 1080-3055-02 |
| 1080305511 | MOTOR 4KW 230V 60HZ | 1080-3055-11 |
| 1080305601 | MOTOR | 1080-3056-01 |
| 1080305603 | MOTOR | 1080-3056-03 |
| 1080305701 | MOTOR | 1080-3057-01 |
| 1080309876 | MOTOR | 1080-3098-76 |
| 1080309933 | FAN MOTOR | 1080-3099-33 |
| 1080400225 | MOTOR | 1080-4002-25 |
| 1080400683 | MOTOR | 1080-4006-83 |
| 1080400801 | MOTOR-FAN | 1080-4008-01 |
| 1080402013 | MOTOR | 1080-4020-13 |
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Thabo Nkosi –
Our GA 110 carries the main air supply for the plant, and its drive motor came up for renewal on the hour meter. We sent the model and the serial number, and the team went through the plate with us before anything was ordered. The type, the 380 V ratings and the 6317 C3 bearings were the same as the unit that came out, so the change was planned around one shutdown and the machine was back on line with it. The running current has held near the plate figure since.