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Rotor & Nacelle Intelligence

WIT-WL40

Nacelle Wind Lidar

Forward-looking wind measurement across multiple distance layers, with wind-speed and direction data available for monitoring and project-specific turbine control inputs.

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Engineering illustration of the WIT-WL40 nacelle wind lidar
Engineering illustration · WIT-WL40

Key specifications

Technical specifications

These are translated product-document values. The operating condition below is part of the specification context.

measurement distance
50–400 m*
documented range layers
10 layers*
specified wind-speed accuracy
0.1 m/s*

Application scope

Applications

  • 01Forward-wind measurement
  • 02Yaw input
  • 03Pitch-control input

Technical review

Functions and integration

  • Doppler-based wind-speed and direction measurement
  • Radial, combined and average wind-data views
  • Second- and minute-level data retrieval
  • Supported industrial data interfaces

Product-specific evidence chain

From forward wind measurement to usable data.

The documented lidar workflow measures wind across configured distance layers and exposes time-based data for review or integration.

Illustrative workflow · based on supplied product documentation

  1. 01

    Measure

    Doppler sensing collects forward wind speed and direction across configured range layers.

  2. 02

    Combine

    The system provides radial, combined and average wind-data views.

  3. 03

    Deliver

    Second- and minute-level data are available through supported project interfaces.

This deterministic diagram explains the documented sequence; it is not a live software screen or independent performance validation.

Configuration review

Review your WIT-WL40 configuration

  • Nacelle installation and requested forward-wind measurement distances
  • Required radial, combined or average wind-data views and time resolution
  • Project interfaces and the intended controller use of the wind data

Documented output: Second- and minute-level data are available through supported project interfaces.

Read this output with the stated operating conditions; it is not a site-specific performance guarantee.

Confirm before ordering

Confirm the included equipment and accessories, installation and calibration responsibilities where applicable, interface documentation, required records and delivery schedule in the project quotation.

The published specifications do not define a complete supply package or a committed delivery date.

Revision-controlled source

Technical documentation

Published specifications are traced to the supplied Chinese-language source. The source file is not offered as a public download while distribution authorization remains pending.

Request controlled datasheet
Source document, revision and standardsRev A · 2026

Document record · WIT-WL40

WIT-WL40 product manual (Chinese original)

Source cross-check complete · public-download authorization pending

Standards context: IEC 61400-1:2019 — design requirements for wind turbines, including the wind conditions a nacelle-mounted measurement is read against. See also IEC 61400-50-3:2022 — procedures for wind measurement using forward-looking nacelle-mounted lidar, written to the quality needed for power performance testing under IEC 61400-12-1. This is the published requirement the measurement serves. It is not a statement that this equipment is certified or approved to it; conformity for a project is established by the buyer's own procedure.

Source type
Supplier-supplied product manual
Revision
Revision A
Document year
2026
Issue date
Not stated
Original language
Simplified Chinese
Sections used
§3.1–3.4, §4 table 3 and §5.3
Source review
Source QA / distribution status
Source cross-check complete · public-download authorization pending

Evidence boundary

First-party specification; not independent validation. This first-party manual supports the published measurement and interface values; it is not independent field validation of energy, load or controller outcomes.

Document provenance

The source document is centrally managed by the supplier and drafted by its technology and R&D function.

Documentation basisProduct evidence record
WIT-WL40
Source
Supplier-supplied product manual
Sections used
§3.1–3.4, §4 table 3 and §5.3
Review status
First-party specification reviewed

No field, customer or inspection-result image is published in this evidence module. The code-native record describes the source basis only.

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specified clearance accuracy
20 cm*
clearance measurement range
0–20 m*
View specifications

Configure the evidence chain

Discuss WIT-WL40 against your turbine and operating conditions.

Provide the component, required output, site conditions and intended integration. We’ll identify the configuration details that need technical review.

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