/ Our production
/ Rail Transport

SPCH-21-U1

Static inverter SPCH-21-U1

Static inverter for electrical equipment package for carriages with an independent electrical supply and air conditioning SPCH-21-U1. The static inverter was tested by the Ministry of Railways of the Russian Federation.

Static inverter appearance

The inverter is designed to control the air-conditioning system of luxury carriages, the power supply of the air-conditioning system electric motors, such as: compressor electric motors, supply fans and condenser fans.

Advantages:

  • Improved comfort level of passenger carriages.
  • Accuracy and stability of output parameters.

- Solid-state reliability, greater service life of electrical equipment and machinery of air-conditioning systems.
- Facilitate the operating modes of air-conditioning system.
- Increase in service life of storage batteries.
- High rate of plates and units unification, supplied as plug-in package, providing ease of maintenance (with the possibility of a quick replacement in case of failure).
- Construction, that doesn’t require maintenance during operation.
- Plug(-to-plug) compatibility with existing wagon arrangement.
- Can be installed in the depot.

Static inverter SPCH-21-U1 provide:

•  Reliable power supply for compressor electric motors, supply fan and condenser fan of air-conditioning system.
•  Smooth and stepless variation of compressor discharge (by controlling the rotational speed of the compressor motor).
•  Automatic soft start of electric motors.
•  Receiving instructions and issuing signalling information for the wagon control system.
•  Full-service diagnosis of electric motors and machineries of air-conditioning system and prevention of emergency situations.

Performance specification: 

  •  Power, kV 3…15

  •  Rated input DC voltage, V 110

  •  Input voltage spread, V 85…145

  •  Number of phases of output voltage 1, 3

  •  Rated output voltage, V 220, 380 ±10%

  •  Rated frequency of output voltage, Hz 50

  •  Sinusoidal output voltage

  •  Rated output current, А, 8÷40

  •  Maximum output current, А, minimum (during 1 min) 12÷60

  •  Forced air ventilation

  •  Category temperature range, ºС -40…+40

  •  Mechanical hazards fitting according to GOST 17516-90 М25

  •  Enclosure IP00 

Protection:

  •  Disconnection of channels at current 1,5 Iн.

  •  Short circuit protection in power section.

  •  Overvoltage protection.

  •  Undervoltage protection.

  •  Disconnection of channels at current unbalance of every channel

  • Inverter more than 20% of the rated value;

  • Disconnection of channels at coolant temperature more than 85±1 °С.

Reliability

The design, materials, technology, workmanship and control provide:
 
•  Average error-free running time with confidence probability 0,9 (in km of car-mileage) – 600000 km.
•  Average service life considering the use of spare tools and accessories kit – 28 years.
•  Average inverter recovery time by means of single set of spare tools and accessories – minimum 30 mins.