The behch is intended to reveal faults in stators of repaired electric motors with the capacity from 100 to 1000 kW after winding removal. The bench reveals cores with high losses before packing new winding and reduces winding wire extra waste.
Test station is intended to test AC asynchronous and synchronous electric motors after overhaul. Voltage of tested electric motor, kV: from 0.66 up to 6. Capacity of tested electric motor, kW: 100-400 250-1000. Equipment installed at the station provides the following trials: - measuring winding isolation resistance in relation to the machine body and between the winding. - Measuring resistance of windings under direct current in practically cold state. - Trials under increased frequency of rotation. - Electric stability testing of winding isolation in relation to machine body and between the windings. - Electric stability testing of winding interloop isolation. - determination of idle running current and losses; - determination of short circuit voltage and losses; - Determination of transformation ratio (for machines with phase rotor). - Idle running. - Determination of idle current for synchronous machines.
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Test station is intended to test asynchronous and synchronous machines with the capacity from 100 up to 1000 kW with up to 6 kW voltage, and from 100 up to 400 kW with 0,66 kV voltage, transformers with capacity up to 2000 kVA with up to 10 kV voltage. Test station provides electric machine trials according to demands of the following technical standards: GOST 7217-87, GOST 183-74, GOST 10169-77, GOST 11828-86, GOST 3484-88, GOST 11677-85. Station equipment allows to perform the following trials: For electric motors: - measuring resistance of winding isolation in relation to body and between the phases; - measuring winding resistance offered to direct current in practically cold state; - testing winding isolation in relation to body and between the windings to prove electric stability; - idle running of electrical machine; - determination of idle current and losses; - determination of short circuit voltage and losses; - determination of transformation ratio (for electrical motors with phase rotor); - testing under increased frequency of rotation (for asynchronous machines with phase rotor and synchronous machines if rotation windings or bandages were under repair). - Electrical stability testing winding interloop isolation; - Idle running for synchronous machines. For transformers: - measuring resistance of winding isolation and absorption ratio; - determination of transformation ratio; - check up a set of winding connections; - testing electric stability of winding isolation by applying increased voltage of industrial frequency; - determination of idle current and losses; - determination of short circuit voltage and losses; - measuring winding resistance offered to direct current in practically cold state;
The installation is intended to solder copper bus by using hard solders in the process of electric machine repair. - 3 position switch to commutate operating current - mechanical clamp of the electrode - fixation of the soldered bus.
The bench is intended for electric strength trials of the main and interloop isolation of unit coils before laying winding into the stator slots. Test Bench diagram provides electric strength trials of electric machine main and interloop isolation according to GOST 183-74 Standard demands. Main isolation trial is performed by means of the testing AC regulated 2…30 kV voltage with 50 Hz frequency. Voltage measuring is taken at the secondary side of the transformer using electrostatical kilovoltmeter. The principle of Test Bench operation while testing coil isolation for electrical strength is based upon the excitation of high frequency voltage produced by electromagnetic induction at discharge of high voltage capacitor. Damage of interloop isolation in the tested coil results in excitation current in short circuited coils causing a magnetic flux in the auxiliary core inducing voltage in the measuring coil which is monitored by millivoltmeter. The main elements of the installation are: the circuit of high frequency damping oscillations, open steel core with oscillating circuit inductance, auxiliary core with measuring coil. Delivery set: -control rack; - test table; - step-up transformer IOM-50/20; -measurement transformer 3NOM-35-65E1 35/0.10 kV - oscillograff
The regulator is intended for smooth voltage regulation on loading over a wide range, at invariable voltage of supply line.
The regulator is intended for smooth voltage regulation on loading over a wide range, at invariable voltage of supply line.
Transformer is intended for soldering a copper bus bar by means of brazers and for welding copper wires of circular cross-section. - 4 position electric current circuit breaker. - Tongs for soldering with a braze.
Washing chamber is intended for degreasing and washing mechanical parts loaded into the basket using the heated washing solution and compressed air barbotage.
The machine is intended for winding annular parts of high voltage coils for electrical machines with simultaneous isolation of the coils by means of micatape.
The press is intended for pressing and baking slot parts of large electric machine winding coils after their drawing.
The installation is intended for winding prefabricated parts of section of stators windings of electric machine.
The machine is intended for drawing annular prefabricated parts of windings into “boat” type for high voltage electrical machines.
Press lath is intended to pressing and annealing slot thermoreactive isolation of electric machine winding sections and electric motor rods. It operates together with an installation for press lath reheating 04.03.53.
The machine is intended for drawing out hard coils of electric machine stator windings made out of prefabricated parts of the “boat” type.
The machine is intended to wind electric motor and transformer coils having circular and rectangular conductor cross-sections.
The machine is intended for drawing rigid winding coils of electric motor stators using the pattern of the ‘boat type’.
Stator is intended for mechanized rotation of the stator while packing sections of the winding into the notches (slots). It provides a turn at the corner from 0° up to 360° and stator fixation in prearranged position.
The machine is intended to overlay body isolation on the stator coils of big electric machines. Isolation is made while shifting the head both ways thus providing stepping isolation overlaying on the front parts. The machine can be used both in production and repair of big electric machines in the conditions of permanent electrorepair production.
The rack is intended to install drums and to draw wires by means of breaking the drums at coiling of windings.
Machine is intended for cutting wedges by means of twoside milling prefabricated parts. One slot wedge is fabricated during one support stroke.
The device is intended to take rotors in and out of stators having 9...13 dimensions. The regulated point of suspension permits to suspend rotor in the exact horizontal direction.
The press is intended for planishing slot-embedded parts (hard sections) of large electric machine windings after their drawing.
The machine is intended to isolate circular bandage winding rings of big electric motors.
The installation is intended for reheating press laths, which are used in the process of pressing and baking of slot isolation sections and electric motor rods. -Thyristor regulators at both outlets perform press lath heating control independently -Setting of heating temperature, time and current values -Alarm signaling of heating current emergency tripping -Automatic tripping of press lath heating process after a fixed heating time is over.
The machine is intended for rewinding the tape from factory made bobbins into the coils of smaller diameter.
The chamber is intended for dyeing large size parts by means of spraying.
Vacuum impregnation installation is intended for impregnation electric motor stators with preliminary discharging in the impregnation tank. Cycle duration is programmed by a control unit. Impregnation process is completely automatized.