Single-phase asynchronous motors with squirrel-cage rotor, standard configuration (5 pages)
Summary of Contents for VEM KP Series
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Operating and Maintenance Instruction Three Phase Asynchronous motors with squirrel cage version II2G EEx d(e) IIC T 3-6 VEM motors GmbH Ausgabe 07.2005...
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Dezember 1996 Werknorm EW-N 1200 EC-Certificate of Conformity Blatt 1 Seite 2 VEM motors GmbH ab:1. 12. 1996 Carl-Friedrich-Gauß-Str. 1 verbindlich: D-38855 Wernigerode bis: The electrical apparatus three-phase asynchronous motors with squirrel cage rotor three-phase asynchronous motors with slip-ring rotor of series KP./KPE./K10./K11./K20./K21.
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Warning! Hazardous electrical current! Ensure protection against explosions! Before installing Make sure that device cannot be switched on again by accident. Switch off the power to the device. Make sure that the device is de-energized. Connect to earth and short out. Cover or close off any neighboring live parts with a barrier.
K8.. 80..., K8.. 90..., K8.. 100..., K8.. 112..., K8.. 132..., K8.. 160..., K8.. 180..., K8.. 200..., K8.. 225..., K8.. 250..., K8.. 280..., K8.. 315..., K8.. 355... Manufacturer: VEM motors GmbH Address: Veckenstedter Weg 23, D-38855 Wernigerode This equipment and any acceptable variation thereto are specified in the schedule to this certificate and the documents therein referred to.
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Physikalisch-technische Bundesanstalt Braunschweig und Berlin Schedule (13) EC-TYPE-EXAMINATION CERTIFICATE PTB 99 ATEX 1098 (14) (15) Description of equipment Three-phase motors of the type of protection flameproof safety „d” with terminasl compartment or direct cable entries. The terminal compartment is carried out in the type of protection flameproof enclosure „d”...
About this Manual These operating instructions apply to AC motors of the following series: K8.R and B8.R. Besides the general assembly instructions, these guidelines are to be followed for the installation, start-up and main- tenance of explosion-protected AC motors with a degree of protection of "pressure-resistant encapsulation" marked: (II..), EEx de II.
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Servicing VEM customer service is available for all technical information concerning VEM motors. Should a problem occur,contact us or one of our local branch offices. When ordering spare parts, in addition to the listed designation of the part required, please indicate the motor type and serial no.
Table 1:Minimum dimensions for lifting eyebolts and crossbeams Frame size Ø horizontal vertical Installation Mechanical checks After removing the shipping braces and shaft blocks (see also the marking on the motor), the motor shaft must be rotated by hand. In the case of brakemotors the brake must be vented at standstill (maximum of 10 min). This must be performed after applying voltage as per the circuit diagram at page 15.
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Figure 2: Minimum distance of obstacles from the air opening The motors are intended for use in areas subject to explosion hazards. The following data on the rating plate distin- guish the motor as explosion-protected equipment: • Degree of protection •...
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Figure 3: Motor Fastening Large-surface Washer In order to achieve an adequately large contact surface, apply a large-surface washer under each nut or screw head > Alternatively use flange nuts or bolts. If the motors' shaft end points up or down (vertical mounting arrangement), it is necessary to fit an appropriate cover to prevent any foreign bodies from dropping in the driven machine through the air inlet and outlet openings in the ventilator hood.
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> Then mount the pulley or coupling on the shaft end: make sure to screw a nut with a washer having at least the same diameter of the pulley hub or coupling on the threaded bolt. Use the utmost care in mounting dynamically balanced pulleys or couplings on the shaft end. Machines to be con- nected to the motor by means of couplings are to be aligned according to the specifications of the coupling's manu facturer.
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Figure 5: Terminal box with fastening screw Figure 6: Terminal box with grub screw > Then tighten the fastening components to the relevant torque, see the following table. Table 4: Torque values for 8.8-type screws Thread size Torque 6 Nm 10 Nm 25 Nm 49 Nm...
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Cable and line lead-ins Connect the motors with cable and line lead-ins or by means of a duct system as per EN 60079-14. These must meet the following requirements: • EN 50019 for wiring spaces with a degree of protection of "increased safety", (EEx e II marking on the compo- nent) •...
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Figure 7: Cable lead-in Maximum two line lead-ins, Roxtec, Rox RS Type plugs Mains and guard circuit connection The mains can be connected either with or without cable lug both in models with terminal board and in those with single-conductor bushings. Connect the power line to the relevant terminals as per the supplied wiring diagram.
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terminals, refer to the following table. Table 6: Rated cross-sections Shaft height Rated cross-section [mm 63 to 112 132 to 160 10 (r) 180 to 225 250 to 280 150/ 300 (depending on the model) over 355 In the case of "increased safety" terminal boxes, make sure to comply with the clearances specified in EN 50019 between conductive parts having different potentials.
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Motors with temperature monitoring The motors are equipped with PTC's as per DIN 44081. Take note of the temperature data and tripping time the rating plate. Connect the PTC to an approved tripping device with marking PTB 3.53-PTC/A or II(2) G. Please note! The tripping device is not explosion-protected.
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Take note of all of the data of the converter manufacturer for said fault condition. Motors with brake The mains line in the version with incorporated brake is connected in the motor terminal box and in the version with the built-on brake in the separate brake terminal box. Observe the supplied connection diagram and the rated volt- age visible on the rating plate.
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Connection diagrams The circuit diagram on the motor is to be followed. Single-speed – one pole ∆ Y circuit circuit Pole changing Low rpm High rpm Dahlander connection Low rpm High rpm Dahlander connection ow rpm High rpm 1TP1- Pre-alarm PTC U>2.5V not allowed Use tripping device with 1TP2...
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Brakemotors with incorporated brake Brake connection via motor winding Y circuit Terminals 1-2 can be connected directly to the motor terminals to supply the brake. Compare the motor/brake voltages to determine whether the connection is to be made on U1-U2 or U1- Terminals 3-4 must be bridged.
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Brake connection via external power supply Y circuit ∆ circuit Brake connection Pole changing Brake power Low rpm High rpm supply via Y circuit Y circuit terminals 1-2. Observe the voltage data on the rating plate. Termi- nal 3-4 must For a rapid Pole changing Dahlander connection engagement...
Temperature class T6 = 85°C T5 = 100°C T4 =135°C Permissible heating on the shaft Permissible heating on the flange Start-up Please note! Before mounting or start-up the insulation resistance is to be measured by qualified technicians. The resistance must be greater than 1 MΩ. A critical value is reached at 0.5 MΩ. If this value is not reached, the motors must be dried.
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Lubrication Please note! In order to avoid damage the bearings and grease must be kept clean. The deep groove ball bearings of motors up to frame size 280 are sealed on both sides and filled by the bearing manu- facturer with a grease which is enough for normal operating conditions in 4 or multi-pole motors for 40000 operating hours or in 2-pole motors for 20000 operating hours.
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Instructions for ensuring explosion protection during operation • All of the contact screws and nuts of the electrical connections are to be tightened securely to prevent excessively high contact resistance values that may lead to an excessive degree of overheating of the contact point; torque values.
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Could you send me the dimensions of the Electric motor (VEM K10 R 280S)