MinePwr-FX-R35741
Category : PORTABLE SUBSTATIONS
Description
DUAL VOLTAGE 4.16/13.8KV 1000KVA MINE SUBSTATION
Section 1:
15kV primary disconnect switch, including:
- 15kV 600A Load break switch c/w DIN fuse (45mm x 292mm)
- Kirk-key interlock, between 15kV switch door and switch handle, to prevent access when energized
- Recessed operating handle, to prevent breaks during handling
- Removable protecting mesh barrier, for safe fuse replacement
- Visualization window, to see 15kV switch state (safety glass)
- 3x high voltage LED indicators, installed between switch and fuses (Z4)
- 3x 25mm grounding balls on phases (load side of 5kV switch) and 1x on ground bar outside the enclosure. Allows uses of temporary grounding cable sets, during work on equipment (Z5)
- Top entry 15kV cable connection compartment, behind interrupter
- 3x fuses for second voltage inside switch compartment
Section 2:
13800-4160V / 600-347V « Delta-Wye » 2 voltage transformers:
- Dry Type Power Transformer:
- MINE DUTY TRANSFORMER
- NRCAN 2019 COMPLIANT TRANSFORMER
- 1000kVA
- Adjustment taps: 4 x 2.5% (2FCAN+2FCBN)
- Class H insulation 220°C
- 150°C Rise
- Copper windings
- Primary: 13.8/4.16kV (Delta) BIL: 95/30kV
- Secondary: 600/347V (Wye) BIL: 10kV
- Taps: 4 x 2.5% (2FCAN + 2FCBN)
- IZ: 7% (est.)
- Splash proof ventilation louver with metal mesh protection behind
- Neutral grounding resistor (NGR) 69 Ohm, 5A cont.
- ER600V Startco sensing resistor with CT
- CT’s and PT’s installed at the transformer secondary
- 15kV 600A 125kV BIL “through wall type” bushings
Section 3:
600V distribution:
- 1x 1200A 3P main breaker + AS (Operation via Flexshaft)
- 1x 1200A 3P c/w adjustable trip unit + ST + AS feeder breaker (Operation via Flexshaft)
- 1x 200A 3P c/w ST + AS feeder breaker (Operation via Flexshaft)
- (ST= Shunt-Trip)
- (AS= 3-wire auxiliary switch)
- Indicating lights for all breakers
- 2x SE-105 ground fault protections c/w 200/5 C.T. on shunt-trip equipped feeder breakers
- SE-330 NGR monitoring
- 1x digital power meter with CT and PT for metering (installed in the control section)
- 1x microprocessor based programmable controler
- RS-485 (Modbus ASCII/RTU) Communication
- Alarm #1 – 100°C – Temperature alarm (dry contact)
- Alarm #2 – 170°C – Temperature alarm (dry contact)
- Alarm #3 - 200°C – High temperature alarm (dry contact)
- 1x type "J" thermocouple, installed in the transformer
Enclosure specifications:
- Built as per Adria mine duty standard
- Built for vertical handling and lifting
- NEMA 2
- Drip proof design, suitable for underground mining
- Sand blast surface preparation and epoxy painted
- Dimensions and approximate weight:
- 146’’ W x 60’’ D x 72’’ H
- 12 000 lbs