Why do I need an irradiation sensor?

The optional irradiation sensor places the solar surface in a horizontal position if a set irradiation threshold is not reached, in order to prevent theft of the solar modules. In addition, the irradiation sensor produces a uniform optics in diffuse light.

Is it possible to use one MLD-Sensor for several Trackers?

No, because the optimal direction for each Tracker can vary due to cloudy weather or reflections.

How often does the Tracker adjust its position?

The precision of the MLD-Sensors is higher than1°. l.e. the system will be tracked every 3-4 min. in case of direct sunlight.

Does the foundation have to be in the underground?

The frost depth in the concrete foundation must not be adhered to, i.e. the concrete foundation can be underground or on the surface. For underground foundations, the pole lenght needs to be determined. The Steel-Root must be undergrounded.

Which module types can be mounted on a DEGERtracker?

In virtue of the flexible adjustment of the carrier frame, all current PV modules can be mounted on DEGERtrackers.

Can the CCB and EC installed outdoor or is a weatherproof box necessary?

The CCB as well as the EC5 and EC6 are weatherproof (IP55). Normally, the EC5 and EC6 are installed directly to the rotating head. The CCB is also suitable for outdoor but should not be accessible for unauthorized people to prevent the joystick from moving the Trackers manually.

What is a wind monitor and when is it required?

The wind monitor positions the module surface in the safe horizontal position when the wind speed exceeds 10 m/sec (3000NT, 5000NT) or 12 m/sec (all other dual-axis systems). This ensures that the safe position is assumed in time before the storm occurs. The wind monitor is included in the CCB (Central Control Box) scope of supply.

What is the maximum distance of the wind guard to the CCB?

The wind guard is pre-wired to the CCB with a 20 m cable. This cable can be extended up to 200 m with a suitable cable in case it is not long enough.

Why doesn't the DEGERtracker 8.5 need a wind monitor?

No wind monitor is required for the DEGERtracker 8.5 because its structure has been designed so that it is storm-safe in any position. (e.g. up to a maximum 45° in the East-West direciton). In stormy weather it is normally cloudy and this would bring the DEGERtracker 8.5 in the safest middle position anyway.

Have you any suggestions for grounding module frames or for lightning protection?

We recommend implementing a sufficient protection against overvoltage and lightning. Each solar park and each system has a unique configuration. The protection against lightning does require a verification of the local conditions and a site specific implementation of the protection system.

A suitable solution can be provided by local specialists which also take into consideration the local requirements and specifications.

How many solar modules fit on a DEGERtracker?

DEGER can provide you with an overview for an exemplary number of current solar modules. You can do calculations using a 10% tolerance to obtain a preliminary calculation. Please not that the maximum number of modules can be limited by regional wind load stressing. DEGER offers a planning tool for detailed calculations.

Are there technical drawings showing module layouts?

DEGER can support you with module layout plans and will also provide you with detailed information on your module type/your configuration when you place your order.

How large do the gaps need to be between individual tracking systems?

As with fixed systems, the spacing must be such as to prevent the units from shading themselves as far as possible. The spacing is determined substantially by the latitude, because here the degree of possible shading differs in intensity. You can obtain related planning documentation on request.

Maximum wind speed/structural analysis of the DEGERtracker?

DEGERtrackers are statically calculated and dimensioned in accordance with German norms for a wind pressure of

1. 0.50 kN/m² (102 km/h) for NT systems
2. 0.80 kN/m² (130 km/h) for DEGERtracker 8.5 and DEGERtracker D80
3. 1.35 kN/m² (170 km/h) for H (HD) systems

The tracking-systems are designed in accordance with DIN 1055-4 (3/2005). With higher wind load stressing, the systems can be adapted by reducing the module surface.

How is the DEGERtracker protected against over-rotation?

All DEGERtrackers have factory-installed double protection using electrical limit switches for stopping the motors.
The single-axis DEGERtrackers in addition, have a mechanical end stop. The DEGERtrackers NT-series and HD-series have an optional mechanical end stop.

What foundations does the DEGERtracker require?

There are different foundation possiblilities for a DEGERtracker:

Round or square concrete foundation:

The size of the concrete foundation depends on the system used and the mast lenght employed. The foundation can be optionally a surface or underground installation. In the case of underground foundation, a longer mast is needed, in order to allow the required ground clearance. A reinforcement plan or ptionally a pre-assembled reinforcement cage can be provided for each foundation.

Driven pile foundation:

The driven pile foundation is deliverd including the ramming piles. The driven pile foundation is individually adapted to local ground conditions on the basis of a geological survey.

Which system is suitable for building integration?

The single-axis DEGERtracker 8.5 and S60H and the dual-axis DEGERtracker D60H and 3000HD are ideal for building integration.