Mine starters
The starter MS-250Â of standard mining version is intended for remote control (start and stop), protection against overcurrent and short-circuit currents of asynchronous electomotors with short-circuited rotor and outgoing connections in mine three-phase electrical networks” with the insulated transformer neutral”.Electrical diagram provides the following types of control:
- remote — by means of push-button control station;
- automatic — from automation equipment.
Electrical diagram provides the possibility for remote control only from “a single site” and switching out both by means of the local “Stop” button and by means of all push-button stations connected to the starter.
Electrical starter diagram provides the following light alarm:
- for “current loading rate of power circuit;
- for available supply voltage in the hardware sector;
- for available supply voltage in the network sector;
- for maximum current protection actuation;
- for overcurrent protection actuation;
- for locking device actuation when insulation is lower than the permissible level;
- for actuation of protection against pluggable electrical equipment thermal overload.
Basic specifications
Parameter | Value |
Rated network voltage with 50 Hz frequency, V | 660 |
Continuous mode rated current of, À | 250 |
Minimum ingress protection rating according to State Standard 14254-96 | IP54 |
Maximum outer dimensions, mm | 955x1040x390 |
Maximum weight, kg | 150 |
Ambient air temperature, °Ñ | from — 5 to + 35 |
Relative ambient humidity at the temperature (25±2) °Ñ, % | 98±2 |
Version according to State Standard24754-81 and State Standard30852.10-2002 | ÐÍ2-ExibIU |
Maximum altitude above sea level, m | 2000 |
Maximum depth below sea level, m | 1500 |
Minimum insulation resistance of the starter power circuit in normal environmental conditions according to State Standard 15150-69, ÌÎm | 10 |
Minimum average error-free running time, h | 850 |
Maximum average recovery time, min | 60 |
Minimum average operating life, years | 5 |
Example of order record:
"Standard mine starter MS-250Â-ÕÕÕ ÒÓ BY 600175052.002-2005".
See also:
