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LDA-5/S

Product catalog summary

Applications
The LDA-5/S is designed for detecting ultrasonic sounds of partial discharge (PD) events at a resonance frequency of 40 kHz. It can identify discharges in air, such as corona, or within high voltage equipment like cable accessories, power transformers, and switchgears, including GIS, depending on the receiver type.

Benefits
When combined with electrical PD detection, the acoustic emission (AE) technique offers a cost-effective method for locating PD faults.

Specifications
- Measuring frequency: approximately 40 kHz
- Amplification: -65 dB
- Voltage supply: 9 V
- Mean current consumption: less than 5 mA
- Optional laser module available with a current consumption of approximately 80 mA

Accessories
The delivery includes:
- Ultrasonic Sensor LDA-5/S
- Ultrasonic Receiver LDA-5/S1 for airborne sound mode (e.g., corona discharges)
- Ultrasonic Receiver LDA-5/S2 for contact mode (e.g., inner discharges)
- Parabolic Reflector LDA-5/S3 with a diameter of approximately 30 cm
- Direction finding tool
- Earphone
- Handle/Assembling part
- Carry Case
- Manual in English

Company Information
Doble Lemke GmbH, Zschoner Ring 9, 01723 Kesselsdorf / Dresden, Germany
Doble Lemke AG, Kaiserstrasse 9, 4310 Rheinfelden, Switzerland
Website: www.doble-lemke.eu

Catalog excerpts

» Detection of the ultrasonic sound of PD events at a resonance frequency of 40 kHz » Depending on the type of the receiver, either discharges in air (corona) or in HV equipment can be recognized, as for instance in cable accessories, power transformers and switchgears, including GIS. » Combined with electrical PD detection, the AE technique represents a cost-effective procedure for PD fault location » Measuring frequency appr. 40 kHz » Amplification: - 65 dB » Voltage supply: 9 V » Mean current consumption < 5 mA » optional: Lasermodul available (current consumption appr. 80mA) Delivery Volume: » Ultrasonic Sensor LDA-5/S » Ultrasonic Receiver LDA-5/S1 (airborne sound mode, e.g. corona discharges) » Ultrasonic Receiver LDA-5/S2 (contact mode, e.g. inner discharges » Parabolic Reflector LDA-5/S3 (diameter approx. 30 cm) » Direction finding tool » Earphone » Handle/Assembling part » Carry Case » Manual in English language Doble Lemke GmbH Zschoner Ring 9, 01723 Kesselsdorf / Dresden Germany www.doble-lemke.eu Doble Lemke AG Kaiserstrasse 9, 4310 Rheinfelden Switzerland www.doble-lemke.eu

Open the catalog to page 1

Additional Pictures Doble Lemke GmbH Zschoner Ring 9, 01723 Kesselsdorf / Dresden Germany www.doble-lemke.eu Doble Lemke AG Kaiserstrasse 9, 4310 Rheinfelden Switzerland www.doble-lemke.eu

Open the catalog to page 2

All Doble Lemke catalogs and technical brochures

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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