1. Manuals
  2. Brands
  3. Fimer Manuals
  4. Industrial Equipment
  5. MVCS
  6. Hardware manual

Fimer MVCS Hardware Manual

Medium voltage compact skid
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
FIMER solar
Medium Voltage
Compact Skid
Hardware manual

Advertisement

Table of Contents
loading

Related Manuals for Fimer MVCS

Summary of Contents for Fimer MVCS

  • Page 1 FIMER solar Medium Voltage Compact Skid Hardware manual...

  • Page 3: Table Of Contents

    Medium Voltage Compact Skid Hardware manual Table of contents Safety instructions Introduction to this manual Hardware description Storing, lifting and transporting Mechanical installation Electrical installation Finalizing the installation Start-up and operation Maintenance Technical data Documents...

  • Page 4: Safety Instructions

    Safety instructions • Allowed usage • Safe installation, start-up and maintenance • General safety instructions • MVCS working area safety –Personal Protective Equipment (PPE) –Safety instructions for MV switchgear and MV transformer area –Safety instructions for the auxiliary services board •...
  • Page 5 Mechanical installation • Foundation guidelines –Placing the MVCS on the foundation –Fastening the MVCS • Constructing earthing electrode and earthing • Filling the pit and finalizing the surroundings Electrical installation • Routing the cables • LV busbar interconnection • Earthing –Protective earthing (grounding) inside the MVCS...
  • Page 6 FIMER is not liable for any damages caused by these changes. • The MVCS is a non-walk-in type station, designed to be operated from the outside. Make sure the side doors are closed at all times during operation and that no personnel is inside or in the near vicinity of the MVCS.
  • Page 7 1 - Introduction to this manual General safety instructions WARNING! Before you perform any work in the MVCS, obey the following safety precautions. 1. Obtain a work permit. 2. Clearly identify the work location. 3. Read the safety instructions of the working area and the component you are working on.
  • Page 8 Stop the string inverters outside the MVCS. Open the DC disconnecting switches in each inverter unit and add warning notices. If appli- cable, open the AC disconnecting switches in each inverter unit, lock and add warning notices.
  • Page 9 1 - Introduction to this manual Safe operation This section contains the safety instructions which you must follow when operating the MVCS. If ignored, physical injury or death, or damage may occur. WARNING! Obey these instructions to prevent injury, death, or damage to the equipment.

  • Page 10: Introduction To This Manual

    This manual is intended for personnel who transport, store, plan the installation, install, commission, and maintain the MVCS. Read this manual before working on the MVCS. You are expected to know the fundamentals of electricity, wiring, electrical components, and electrical schematic symbols.

  • Page 11: Hardware Description

    MVCS). Note that the AC cabinet also includes an additional space for customer use (e.g. communication board, etc). Mechanical characteristics The MVCS is constructed over a skid, with the appropriate dimensions to be suitable to transport inside 20 ft or 40 ft HC container. • External dimension (length, width, height) = 5700 x 2150 x 2580 mm.
  • Page 12 3 - Hardware desription Working areas and main components Main Components Overview SF6 Outlet MV Input from transformer (V module) MV Output (C module) LV Connection Box MV Bushings Transformer Protection Device Neutral Bushing Busduct/Busbars Auxiliary Section input String Inverter cables access...
  • Page 13 3 - Hardware desription MV Switchgear Medium voltage switchgears protect MV transformers and the MVCS in general, its also allow the MVCS to be connected to the Grid and to other MVCS in parallel. Technical Datasheet Environmental Minimum Ambient Temperature -25 °C...
  • Page 14 3 - Hardware desription C module (L) V module (P) Protection Relay Circuit Breaker Interlocking Cable compartment protection panel Cable compartment MV Outdoor Enclosure This enclosure is included when indoor switchgear is installed. Technical Datasheet Minimum Ambient Temperature -25 °C Maximum Ambient Temperature 60 °C Classification...
  • Page 15 Load Power derating According nº of inverters and environmental conditions Safety protection device RIS2/DGPT2 or similar *This layout may vary depending on final MVCS configuration LV Bushings + Neutral terminal Off-Load Tap changer MV Connectors Earthing terminal and Oil Drain Valve...
  • Page 16 -1x Network switch, unmanaged, Fast Ethernet, Number of ports Main Circuit Breaker Optional Optional Energy Measurement Optional *This layout may vary depending on final MVCS configuration Inverter inputs. For more information, see section Inverter inputs (A) Auxiliary service board. For more information, see section Auxiliary service board (B)
  • Page 17 3 - Hardware desription Inverter inputs (A) *This layout may vary depending on final MVCS configuration Cover for incoming cables Surge arrester protection Grounding Busbar Fuse holders + fuses for inputs protection PVC protection cover Ventilation system...
  • Page 18 Auxiliary service board (B) The figure below shows the disposition of the main components of a standard auxiliary service board. *This layout may vary depending on final MVCS configuration Auxiliary service transformer Surge arrester protection for the auxiliary service board...
  • Page 19 3 - Hardware desription List of signals Signals from the different devices described above are concentrated in the auxiliary service board (7 & 9). These digital signals are connected to a Modbus TCP fieldbus coupler + industrial ethernet switch, so it can be integrated with an external SCADA. The list of most common signals: Component Signal...
  • Page 20 • String Inverter: PVS-175 • Number of inverters connected to the MVCS: 20 • Medium Voltage Level: 15 kV With the definition of the inputs above, then a standard MVCS will be configured: • Skid: C4; • SWG: 24kV;16kA;CV; 50/51-50N/51N-68 Relay;...
  • Page 21 +MCB Main Circuit Breaker Addition of a Main Circuit Breaker in accordance with MVCS specification +UPS3 UPS 3kVA Addition of UPS: 5,5 min (3kVA)/ 9 min (2,25kVA)/ 14 min (1,5kVA)/ 29,5 min (0,75 kVA)

  • Page 22: Storing, Lifting And Transporting

    • Make sure the ground underneath the MVCS is solid, flat, dry and vegetation-free. The ground must support the station evenly from below and there should not be any twisting or stress. Do not place the MVCS directly onto the bare ground because this could damage the paint and cause corrosion.
  • Page 23 • The minimum length of each sling is three meters. • Adjust the length of lifting slings so that the MVCS does not tilt during lifting. • Do not allow the lifting slings to scratch the walls or roof. Damaged paint can lead to corrosion.
  • Page 24 Keep the transportation height as low as possible. Make sure the total height of the transportation is not more than the maximum allowed height. WARNING! Transport the MVCS on an open heavy-duty chassis. Do not use an enclosed trailer because the stations surface could easily be damaged. WARNING!
  • Page 25 1. Protect the corners of the MVCS against shock. 2. Make sure that the terrain is level and sturdy. Consider that the MVCS has an approximate weight of 15 tons. 3. Unload the standard container carrying the MVCS inside. Follow local regulations and applicable standards.
  • Page 26 Note: Pull the MVCS until connection with spreader and crane is possible. Then follow the lifting procedure to place the MVCS. The function of the wheels is to pull the MVCS out of the container, the wheels are not intended for move the MVCS around the PV plant.

  • Page 27: Mechanical Installation

    200 mm gravel under the foundation. • Consider the required cable bending radius and installation room. • The built-on site user platform around the MVCS must be at least one meter (40 in) wide. If it is narrower, service work can be difficult.
  • Page 28 To fasten the MVCS to the foundation, bolt the cabinet through the holes on the base of the inverter or use the supplied attachment brackets (see figure below). Use bolts and washers in each connection point. For these anchoring points FIMER recommends “FH II 24/50 Nylon S”...
  • Page 29 4. Do not plant trees near the MVCS. If bushes are planted, make sure that the planting compost base is at least one meter (40 in) away from the station housing and that the fully-grown bushes do not prevent maintenance access to the MVCS. Make sure that anything...

  • Page 30: Electrical Installation

    WARNING! Only an authorized electrician is allowed to install the cabling to the MVCS. Obey the Safety instructions and the local safety regulations. If ignored, physical injury or death may follow, or damage to the equipment may occur. WARNING! Do not do any electrical installation work during a thunderstorm.
  • Page 31 6 - Electrical installation Earthing An external earthing electrode is required for the MVCS, for the construction of this electrode please follow local regulations as well as the following minimum requirements: • Minimum cross-sectional: depends on MVCS configuration, please consult FIMER.
  • Page 32 6 - Electrical installation Single-core Multicore 6. Route the cables inside the AC cabinet. 7. Connect the cables to the correct fuse base terminals in the AC cabinet, make sure that the proper electrical sequence is maintained. Tighten the connections. 8.
  • Page 33 To connect MV cables: 1. Remove the cable entry covers. 2. Lead the cables into the MVCS and seal the cable entries. 3. Terminate the cables according to the cable manufacturer instructions. Connect the cables to the MV switchgear. The standard cable termination (see figure below) installed in MV switchgear is interface type C (400 series with M16 bolted contact) 630 A.

  • Page 34: Finalizing The Installation

    The cement hardens in a few days and it forms a barrier against small animals and plant growth. Checking the installation of MVCS As part of the pre-commissioning inspection of a MVCS, it is needed to check the following points listed on Commis- sioning Pre-Conditions & Pre-Commissioning Checklist.
  • Page 35 □ Make sure that the parameters of the MV/HV grid on which the PV plant is going to be connected match with the MV parameters of the MVCS (MV level, Isc..) □ Make sure that there is permission from grid operator to connect the PV plant Pre-Commissioning Checklist The following inspection activities should be checked when the installation process has been completed.
  • Page 36 Check that the electrical sequence is correct for the MV cables coming from the MV ring. □ Verify the correct function of the interlocking system Check that the settings of the protection relay are suitable for MVCS and grid characteristics MV Transformer □...
  • Page 37 7 - Finalizing the installation □ Check visually that AASS transformer, main circuit breaker (if present) and UPS (if present) are in general good conditions and that there are no hits, bumps or any visible damages caused by transportation □ Check that AASS transformer, main circuit breaker (if present) and UPS (if present) are prop- erly fixed to the cabinet □...

  • Page 38: Start-Up And Operation

    This chapter describes the start-up procedure of the medium voltage compact skid (MVCS) and the general opera- tion criteria. WARNING! Only an authorized electrician is permitted to install the cabling to the MVCS. Obey the Safety instructions and the local safety regulations. If ignored, physical injury or death, or damage to the equipment may occur. WARNING! Do not do any electrical installation work during a thunderstorm.
  • Page 39 8 - Start-up and operation Task Additional information General Building □ Make sure that Commissioning Pre-Conditions & Pre-Commissioning Checklist have been successfully completed □ Make sure that the installation of the inverters has been properly done See inverter product manual and commissioning manual □...

  • Page 40: Maintenance

    Fimer WARNING! Only an authorized electrician is permitted to do maintenance work on the MVCS. Obey the Safety instructions and follow the local safety regulations. If ignored, physical injury or death, or damage to the equipment may occur.
  • Page 41 9 - Maintenance Electrical connections Torque (N.m, ±10%) Thread Plug (mm) Stainless steel A2-A4 Brass/copper Brass/copper 1.Flag Connection between nut and locknut (2 Terminal blocks 2.Busbar wrenches needed) 0,6x3,5 M30x2 M42x3 M48x3 M55x3 M64x3 M75x3 M90x4 Mechanical connections Torque (N.m, ±10%) Stainless steel A2-A4 Stainless steel A2-A4 Stainless steel A2-A4...
  • Page 42 The maintenance and component replacement intervals are based on the specified operational and environmental conditions. FIMER establishes the following as a minimum maintenance schedule. The MVCS final maintenance schedule must be adapted and defined by the maintenance responsible of the plant according to the site conditions, operations and others.
  • Page 43 Additional information □ Pre-check that there are safe conditions before starting any cleaning procedure. □ Cleaning the MVCS □ Use pressurized air to clean the external enclosure, floors. and gutters. □ Use pressurized air to clean all air inlets and out- lets including grills.
  • Page 44 2. Clean the damaged area and its surroundings. 3. Coat the damaged area with the zinc coating. FIMER recommends to use Würth Zinc 300 due to the thicker coat. On large areas, you can use Würth Zinc Spray Perfect to ease the work and to get an even surface.
  • Page 45 9 - Maintenance Maintenance of grounding bars and points Tools • Steel wool • Ensto SR1 joint compound or equivalent • 42839 Würth protective wax or equivalent Procedure 1. Examine the condition of the grounding bar and grounding cables in the MV switchgear area. If there is any visible corrosion, remove the cables and remove the corrosion with steel wool.

  • Page 46: Technical Data

    10 - Drawings Technical data Contents of this chapter This chapter contains the technical data of the medium voltage compact skid (MVCS). Technical data and types: MVCS Power Range Number of inverters in parallel Maximum rating in kVA with 1.000 1.200...
  • Page 47 IEC 62271-212, IEC 62271-200, IEC 60076, IEC 61439-1 1) For 6/8/10 inputs MVSS can be selected. 2) Outdoor or indoor selection at FIMER’s discretion. 4) Included as standard if destination country is in EU 5 3) kVA aux trafo with required secondary voltages (eg 110 V) can be selected as optional...

  • Page 48: Documents

    11 - Drawings Documents Contents of this chapter This chapter contains the standard list of documents delivered together with a medium voltage compact skid (MVCS). List of documents The list includes two types of documents: • Product Series—Standard product series drawings that can be consulted prior to the purchase of the unit.
  • Page 50 FIMER Spa Via John Fitzgerald Kennedy, 26 20871, Vimercate (MB) – Italy www.fimer.com...

Table of Contents