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Products showHome >> MTC2 Universal Coil Tester

MTC2 MULTI-FUNCTION SURGE TESTER

MTC2 is one of the most advanced motor testers in the world, it was developed and manufactured by Germany Schleich Advanced Techniques Company. There are some types of tester among MTC2: 6KV,12KV,15KV,30KV,40KV,50KV. the most popular features of the tester are:
Test methods:(by the example of MTC2-30KV)
The MTC2-30KV supplies 2 winding connections and one frame connection. Solid clamps are attached to the 3 connections.
The following test methods are integrated in the MTC2-30KV:
1. surge test up to 30KV at 2 winding connections
2. insulation-resistance test with DC up to 30KV max. 4mA
3. DC high voltage test up to 30KV max. 4mA
4. PI/DAR test with the DC high voltage
5. automatic step-voltage test
6. Inductivity measurement with actual/nominal comparison
7. visual examination
8. high-accuracy ohmic resistance test in 4-wire configuration incl. ambient-temperature compensation
9. optional offered - PD Test at surge
Data collection and storing:
According demands it is possible to store the results either in the MTC2 or on another pc / server. The optional offered software secures the communication. Additionally it is possible to use the interfaces RS232 and USB.
The portable MTC2-30KV is a digital surge tester for testing inductive test objects, e.g. 3-phase stators, 1-phase stators, transformers, motors, armatures and single coils. The tester is controlled by an integrated PC with touch display.
The MTC2-30KV supplies 2 winding connections and one frame connection. Solid clamps are attached to the 3 connections.
The tester is operated with WINDOWS XP. The software is very user-friendly and clearly structured. The comfortable and intuitive operation is similar to other Windows programs, like WORD. The program is especially designed for manual single tests - typical for service, maintenance and repair.
The tester is optimized for mobile applications - mouse and keyboard are not mandatory. The tester is completely operated via the integrated touch display and/or the rotary switch and/or, if required, via a connected, external Bluetooth keyboard/mouse.
In addition to manual tests, it is possible to run automatic test processes. Test programs and test results are stored in an ACCESS database. The label data of the motor can also be entered and stored. With the label data, the test results can also be searched for in the database and printed out. In addition, it is possible to compare the test results of old tests automatically to new test results easily. The tester allows an evaluation of the condition of the motor and indicates a possible deterioration of the insulation.
The software allows an operation of the tester in NT/WIN2000 networks. The Ethernet interface belongs to the standard delivery extent of the tester.
The software of the tester (delivered on CD) can also be installed on a workstation. This way it is possible to perform tests at the tester and, at the same time, generate or change test programs at the workstation via the network. It is also possible to view statistics or protocols.
MTC2 SURGE TEST AT GENERATORS FOR POWER GENERATION
The tests are performed according to two different standards.
1. IEC 60034-15 edit 3 : test after insertion of the coils in the stator core, before the connection
2. Lloyd’s Register Rules : test after insertion of the coils in the stator core, before the connection
Point 1: The surge voltage can be adjusted by the operator between 0.4 ... 0.8 of the test voltage according to the equation: 0.65(4Un+ 5kV). Up to 35KV, the rise time of the surge voltage is to be: 0.2μs - 0.1μs ... 0.2μs + 0.1μs.
For higher voltages, the rise time of the surge voltage is to be: 0.2μs - 0.1μs ... 0.2μs + 0.3μs.
The number of impulses is 5.
Point 2: The test is performed at all coils, after they have been inserted into the slots and after they have been insulated and fastened. Each coil is to be subjected to at least five surge impulses.
The peak value of the surge voltage is determined by the following formula: Vpeak = 2.45 Vn (max. 26.95kV)
Vn = rated line voltage as RMS value
The test with the nominal test voltage should not be performed more than 5 times.
The MTC2 automatically compares the 5 surge impulses at every coil and, additionally, with a reference impulse taken from the first tested coil of a stator.
The goal is to make sure that all coils have the same number of turns and that the winding of a coil has no turn-to-turn fault.
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