VLDM system, permanent monitoring of SDS or HVL

The VLDM components permanently monitor the breakdown fuses or Voltage limiting devices, as required by EN 50122.
The VLDM system is individually assembled and configured for you.

Description

Continuous monitoring of passive surge arresters and voltage limiting devices of classes 1, 2 and 2.2 in accordance with EN 50526-02, as well as voltage surge arresters (SDS) and hybrid voltage limiters (HVL).

  • Thanks to its ultra-low-power design, the system can be operated using a rechargeable battery, such as the WB-AP.
  • Additional power supplies are also available.
    • Solar
    • Various auxiliary voltages
    • Traction power
  • Communication protocols (GSM, LTE, UMTS, LoRaWAN, etc.).
  • Mounting options: indoor or outdoor, wall or mast.
  • The configuration of the VLDM system is customised to the customer’s requirements.

We look forward to receiving your enquiry.

 

Additional information

Assembly

Mast mounting, Wall mounting

DC System voltage (UA)

1,500 VDC, 600 V DC, 750 V DC, customer requirement

Application

The VLDM system aims to optimize the cyclical testing of breakdown fuses (SDS) or Voltage limiting devices (HVL) as required by EN 50122. Permanent monitoring allows you to switch from cyclical monitoring to reactive activities. This makes it possible to send maintenance personnel to the defective components in a targeted manner. Manual cyclical monitoring is therefore no longer necessary. Several solutions are available for parameterization and battery charging.

  • WB service adapter
  • iWTC adapter with 2010

Depending on the design, the energy source can be replaced on site.

Functional description

The fuse components are permanently monitored by the built-in WB-VLDM. The operating states can be interpreted by evaluating the supply line.

The status of the backup, the energy source and the system can be reported cyclically. If an event occurs during the backup, this is displayed in the form of an event message.

Threshold values, target numbers, SIM PIN numbers etc. can be freely parameterized using the WB service adapter or iWTC.

The runtime depends on the batteries installed and many other parameters (see option 4).

The system is operated using two buttons or four LEDs, which can be used to display the current status of the system and reset the system to its default parameters.

Product options

  1. Cable entry in the cabinet
  2. Measuring cable length
  3. Mobile radio frequencies (international)
  4. Power supply via rechargeable battery or mains adapter, also up to 750 V DC
  5. Potential-free signaling contacts
  6. Communication protocols
  7. Indoor or outdoor antenna

Do you have another wish? We can’t wait to talk to you!

Scope of delivery

We supply the VLDM system as a complete system solution. This consists of the components agreed with you, for example WB-VLDM, WB-AP and sensor, which are installed in a compact GRP cabinet. We import your parameters as part of the outgoing goods inspection. The VLDM system is usually manufactured individually for you.