PVS Container Reference Design

Transcription

1 PVS Container Reference Design

2 PVS Container Reference Design Overview Mechanical definitions Material Container design Inverter room design Transformer room design Switchgear room design (optional) Arrangement of components Ventilation (air supply and extraction) Exhaust-air shrouds Air filter Electrical connection... 13

3 PVS Container Reference Design Overview This document contains a description of the design of an inverter station for units in inverter series SINVERT PVS500. The inverter station comprises an inverter room, a transformer room and a medium-voltage room (optional).

4 PVS Container Reference Design Mechanical definitions 2.1 Material Permissible materials for the container are listed below: Steel Concrete The container material must have a guaranteed minimum lifetime of 25 years. 2.2 Container design The container comprises the following components: 2x inverter 1x AC cabinet 1x medium-voltage transformer 1x medium-voltage switchgear (optional) The container dimensions are specified below: Length (external): 6700 mm Width (external): 3000 mm Height (external): 3250 mm Internal height: 2600 mm Minimum height Cable compartment: 300 mm

5 PVS Container Reference Design General design: Degree of protection: Container floor: Base plates: Container false floor: IP54 The floor must have a load-bearing capacity of approximately 10 t inventory. Steel channels at false floor height for cabinet installation, with 4 holes of 16 mm diameter per cabinet The base plates must be coated, removable and lockable. If pressure-relief openings are provided in the false floor, the base plates must be locked to prevent lifting! With false floor, clear height > 170 mm, without thermal insulation Access in aisle via removable base plates Upper edge of aisle flush with mounting surface of cabinets Partitions: 2 partitions as shown in Figure 1 in false floor area cable openings Openings in partitions: Roof: Grounding points / grounding bar: External ground connection: Foundations (for information only) Lightning protection: Supplementary design of steel container: Type of construction: Thermal insulation: Paint finish: Opening in the false floor with aluminum plates between inverter room and transformer room Inverter room: 1 x opening 1200x1214mm for air filter or supply air fan in the inverter room with drill holes and bracing elements provided for mounting. 4 x opening 488x1255 for extracted air above the inverters with external louvers Transformer room: 1x opening 488x488mm for fans MV room: 2x opening 450x500mm for pressure-relief flaps Rainproof, dimensioned for 150 kg/m² 6 grounding points in the container and a grounding bar in the transformer room for 8 connections 2 M12 stainless steel screws, in steel plates, arranged diagonally at two corners of the container frame Strip or post foundations, provided by the customer By means of lightning spikes at every corner of the container Fully welded with trapezoidal plates 4 x ISO corners on the base and 4 x at the top Crane suspension points on the roof By means of PU panels, with galvanized plates, coated with RAL7035, Panel thickness roof = 60 mm Thickness of external/internal coats 120 / 80 µm (Thickness of external coats depending on local environmental conditions)

6 PVS Container Reference Design Inverter room design The inverter room comprises the following components: 2x inverter (WxHxD = 2700mm x 2100 mm x 700 mm / 1965 kg) 1x AC cabinet (WxHxD = 600 mm x 2000 mm x 600 mm / approx. 400 kg) Equipment: Socket outlets on the door Light switch on the door Lighting Luminaires 2 x 2 x 58 W Smoke detector (optional) Thermostatically controlled heater for frost protection 2 kw, 230 V (optional) Container temperature sensor Warning notice: "In order to ensure a safe escape route, do not open the doors of more than one inverter at a time! Door: Width/height, e.g mm/2400 mm clearance dimension (door size suitably dimensioned to allow future replacement of a complete inverter subunit) Single-leaf aluminum door Locking system (with panic lock with knob on outside, latchkey on inside) Doors must open outwards Openings in floor: 1 x 300x300 mm below the AC cabinet 4 x 600x180 mm below the inverters The inverter room dimensions are specified below: Length (internal): Width (internal): Height (internal): Minimum aisle width: 3900 mm 2800 mm 2600 mm 1240 mm

7 PVS Container Reference Design Transformer room design The MV transformer room must be designed to accommodate an oil-immersed or a cast-resin transformer kva transformer (with casters) Dimensions (approx.): Length: 1,800 mm Width: 990 mm Height: 2,180 mm Total weight: Approx. 4,000 kg Equipment: Light switch on the door Lighting Luminaires 1 x 2 x 58 W Transformer rails with side track limits Removable red warning strip directly behind the door to protect personnel Doors must open outwards Fire protection, water pollution control measures, etc. for oil-immersed transformers (oil drip tray, e.g. made of sheet steel, with oil-tight welds) Door: Width/height, e.g mm/2400 mm clearance dimension (door size suitably dimensioned to allow future replacement of an MV transformer) Single-leaf aluminum door Locking system (with panic lock with knob on outside, latchkey on inside) With ventilation elements Openings in floor: 2 x 500x300 mm The load assumptions for the cable support racks must be taken into account and suitable cable fasteners must be provided. The minimum transformer room dimensions are specified below: Length (internal): Width (internal): Height (internal): 2370 mm 1540 mm The room should be at least 50 cm higher than the maximum height of the transformer.

8 PVS Container Reference Design Switchgear room design (optional) Installation of MV switchgear is optional. The container is capable of accommodating air-insulated or SF6-insulated switchgear, e.g. Siemens 8DJH, 2-4 panels, height 1400mm. Equipment: Socket outlets on the door Light switch on the door Lighting Luminaires 1 x 2 x 58 W Pressure-relief openings with appropriate air ducts, expanded metal grids, etc. must be provided. The dimensions of the necessary pressure-relief openings depend on the type of switchgear and the shortcircuit current. Door: Width/height, e.g mm/2400 mm clearance dimension (door size suitably dimensioned to allow future replacement of switchgear) Locking system (with panic lock) Drilling patterns for MV switchgear (specific to project) Length (internal): Width (internal): Height (internal): specific to project specific to project 2600 mm

9 PVS Container Reference Design Arrangement of components The control cabinets have a predefined geometric arrangement which is determined directly by the ventilation openings. Details can be seen in the sketch below. Figure 1, arrangement of components in the container with MV-Switchgear room (optional) Figure 2, arrangement of components in the container without MV-Switchgear room

10 PVS Container Reference Design Ventilation (air supply and extraction) The air supply and air extraction systems of the inverter room and transformer room are mutually decoupled. Inverter room: Air enters the room through a supply air opening in the container side wall. The air requirement of the inverter room is approximately 13,000 m³/h. Without air-filter: 2 centrifugal fans (K3G 355-AX56-02, supplied by ebmpapst) are required. Supply air opening with supply air fan and external louvers Fan control in the AC cabinet Outlet-air openings above the INV cabinets on side walls (opening 4 x 488 mm x 1255 mm) Exhaust air from the PV INV is transported through fan shrouds to outlet-air openings Fan shrouds and sealing material are available as accessories External louvers for outlet-air openings Order kit: Fan shroud for PVS500 (shrouds, fastening elements and sealing material) With air-filter: 4 centrifugal fans (K3G 355-AX56-02, supplied by ebmpapst) are required. Supply air opening with external air filter with integrated fan Fan control in the AC cabinet Outlet-air openings above the INV cabinets on side walls (opening 4 x 488 mm x 1255 mm) Exhaust air from the PV INV is transported through fan shrouds to outlet-air openings Fan shrouds and sealing material are available as accessories External louvers for outlet-air openings Order kit: Fan shroud for PVS500 (shrouds, fastening elements and sealing material) Figure 3, centrifugal fans Transformer room Air enters the room through supply air opening in the door Exhaust air exits through outlet-air opening in side wall Fan control in the AC cabinet 1 fan, type: W4D315-DP26-35, supplied by ebmpapst External louvers for outlet-air openings

11 PVS Container Reference Design Exhaust-air shrouds DC-exhaust-air shroud AC-exhaust-air shroud Figure 4, Design drawings for fan shrouds

12 PVS Container Reference Design Air filter Opening in side wall 1200 mm x 1214 mm Figure 5, Dimension drawing of air filter housing

13 PVS Container Reference Design Electrical connection The basic interconnection between components can be seen in the circuit diagram below. The power cables in the container are installed either in the cable vault or cable floor (see minimum height of cable vault/floor) Figure 6, electrical connection