Thyristor-contactor starter TKP
The thyristor-contactor starter TKP is designed to operate in three-phase electrical networks with a voltage of 660 / 1140V with an isolated transformer neutral in mines and mines that are not dangerous for gas (methane) and dust, it is used for remote smooth start and stop with dynamic braking of asynchronous electric motors with a squirrel-cage rotor , as well as for protection against overload and short circuit currents of outgoing power circuits.
| Parameter name | TKP 2х500 | TKP 2х400 | TKP 2х300 | TKP 2х200 | TKP 1х500 | TKP 1х400 | TKP 1х300 | TKP 1х200 | |
|---|---|---|---|---|---|---|---|---|---|
| Rated voltage, V | 660/1140 | ||||||||
| AC frequency, Hz | 50 | ||||||||
| Rated continuous starter current, A | 1000 | 800 | 600 | 400 | 500 | 400 | 300 | 200 | |
| Overcurrent protection setting range, A | (10-2500)* | ||||||||
| Setting range In for current overload protection, A | (6,3-750)* | ||||||||
| Response time of current protection against overload 6In, sec., no more | 5 | ||||||||
| Controlled value of insulation resistance 660/1140 V, kOhm | 30/100 | ||||||||
| Controlled value of insulation resistance 42 V, kOhm | 4,5 | ||||||||
| Controlled resistance value of the grounding circuit, Ohm | 50 | ||||||||
| Controlled thermistor resistance value (temperature protection), kOhm | 13 | ||||||||
| Коммутационная способность одной силовой ветви: | |||||||||
| – for shutdown (effective current value), A | 3150 | ||||||||
| – for switching on (amplitude value of current), A | 3800 | ||||||||
| Switching wear resistance of the main contacts, ON-OFF cycles: | |||||||||
| – in the AC-3 category (with In.working = In) | 3х105 | ||||||||
| – in the AC-4 category (with In.working = 0.4In) | 1х105 | ||||||||
| Mechanical wear resistance, ON-OFF cycles | 1х106 | ||||||||
| Mechanical wear resistance of the disconnector, ON-OFF cycles | 6300 | ||||||||
| Overall dimensions, mm, no more | 2685х855х1315 | 1380х855х1315 | |||||||
| Weight, kg, no more | 910 | 900 | 884 | 862 | 560 | 556 | 542 | 530 | |
| Level and type of explosion protection | IP54 | ||||||||
| * Setting range of current protection for one power branch when only one electric motor is connected to the power branch; when connecting two electric motors to one power branch, the maximum setting range is automatically reduced by half (1250 A according to item 5) | |||||||||