SU-RV TP explosion-proof mine control station

Station circuitry provides:

  • Power contactors engagement/disengagement by a preset algorithm

  • Power contactors engagement/disengagement with de-energized power circuit (testing)

  • Compatibility with remote controls

  • Intrinsically safe inputs for external control circuits

  • Intrinsically safe outputs for power contactor status signals

  • Performance diagnostics for all station components

  • Short-circuit current protection of power branches

  • Overcurrent protection of power branches

  • Overheating protection of downstream equipment

  • Remote control circuit fault or short-circuit protection

  • Prevention of self-engagement at 150% of rated voltage

  • Protection against branch ground circuit failure or resistance buildup over the allowable value

  • Branch interlock in case of external line-to-ground insulation fault or drop below the allowable level

  • No-voltage protection

  • Mains power indication

  • Protection testing

Indication on the integrated LCD of:

tripping events,

branch line engagement/disengagement,

status of each function

Upstream data transmission (‘to the surface’)

Recording of all events and settings

Environment conditions

Underground excavations at mines, shafts and their surface buildings with the ambient of hazardous gas and/or combustible dust

Category I explosive mixture (methane at underground works) ambient or corrosive salty dust ambient

UKhL (temperate and cold) climatic version, location category 5

Ambient temperature: minus 10°C to +40°C

Relative humidity: (98±2)% at (35±2)°C

Installation site vibration: max. 25Hz, acceleration at max. 1g

Working position: levelly on a skid, inclination max. 15° in any direction

Allowable power mains voltage fluctuations: 80% to 115% of rated value

Main performance specifications

Property

Value

Rated primary feed voltage, V

6000/10000

Rated secondary feed voltage, V

690/1140

AC mains frequency, Hz

50

Rated power, kVA

1250

Automatic circuit breaker rating, A

630

Number of downstream electric motors

Max. 25

Phase number and voltage at the lighting transformer secondary winding, ph × V (if any)

3×127

Number of branch lines powered by the lighting transformer secondary winding, including:

3-phase load at 1.6 kW

2-phase lighting load at max. 1.3 kW per branch

2-phase communication and alarm equipment load at max. 1 kW per branch

5

1

3

1

Note: Total power of connected consumers – max. 5 kVA

Branch line insulation control unit adjustment range, kΩ

10...130

Branch line current leakage control unit adjustment range, kΩ

10...130

Ex rating

РВ Ex db [iа Ма] I Мb Х

Enclosure protection rating

IP54

Remote control circuit intrinsic safety rating

ia

Duty mode:

continuous 

short-time 

intermittent 

S1

S2

S3

Weight, kg, max.

13000

Dimensions, mm, max.:

length 

width (depth) 

height 

7220

1070

1450

IEC protection class

I

 

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