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Toolbox talk at the Quellmoor Ridge O&M building on 2025-11-12 at 07:30.
Speakers: Dario Penwarden, Greta Vollan, Callum Rydings, Élise Ternaux.

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FICTIONAL - NOT FOR OPERATIONAL USE

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<v Dario Penwarden>Morning everyone. Today's toolbox talk is about cold-weather start-up, now that most gearboxes run on the new oil.

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<v Dario Penwarden>Quick status of the conversion to PWG 220: nine turbines are done, WTG-11 is being converted today and WTG-12 next Wednesday.

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<v Dario Penwarden>WTG-09 is planned for the twenty-fourth, if the access road stays open.

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<v Dario Penwarden>The important change: with PWG 220 the minimum oil temperature for start-up is plus five degrees. With the old PWG 320 it was plus ten.

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<v Callum Rydings>So the turbines will be back in production faster after a cold night?

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<v Dario Penwarden>Yes. From minus twenty the heaters need about four hours to bring the sump to plus five. Last January WTG-02 and WTG-09 needed more than six hours.

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<v Dario Penwarden>Never bypass the start inhibit. The controller waits for the oil temperature for a reason.

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<v Élise Ternaux>And if WTG-09 still has PWG 320 in January, which temperature applies?

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<v Dario Penwarden>Then its start temperature stays at plus ten until the conversion is done. The parameter is changed only with the new oil.

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<v Dario Penwarden>If you see A2120, gearbox oil pressure low, right after a cold start, give the heaters more time before you call me. It is usually cold oil, not a pump fault.

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<v Callum Rydings>What about the filter alarm, A2140? We had that on WTG-05 last winter.

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<v Dario Penwarden>Same story: thick oil gives a high pressure drop across the filter. Wait for the oil to warm up, then check again.

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<v Greta Vollan>Let me add the safety points. First, ice. When A7001 ice detection is active, the turbine stops by itself.

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<v Greta Vollan>Keep at least 300 metres away from a turbine with ice on the blades, and no climbing until the ice has gone.

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<v Greta Vollan>Second, people. Wear layers, take spare gloves and hand warmers, and do a buddy check every thirty minutes.

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<v Greta Vollan>Ladder rungs can be frozen at the tower base. Use the service lift when it works, and check the lift battery on cold mornings.

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<v Élise Ternaux>The service lift on WTG-06 stopped twice last winter because of the cold.

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<v Greta Vollan>Good point. Report it every time, so that we can follow it up with Litware.

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<v Dario Penwarden>Last thing: after the conversion, never top up a gearbox with PWG 320. The old drums are marked do not use.

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<v Callum Rydings>There is still one drum of PWG 320 in the store.

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<v Dario Penwarden>It stays there until the waste carrier takes it. Do not use it.

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<v Greta Vollan>Please sign the attendance sheet before you leave. Thank you.

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FICTIONAL - NOT FOR OPERATIONAL USE