[Bug]: Voltage in disconnected cable, potential powernet update issue

[EJDenton]

Checks

• I have searched the bug with a few keywords, and I confirm this bug was not yet reported.

Location

Horizon

Describe the issue

This is consistent but the location affected can change. I have seen multiple times that wires which are disconnected from any power source read as carrying voltage. It seems to usually occur due to activation/deactivation of breaker boxes. I've seen these wires power rooms and equipment (effectively free power) and it also gives improper readings on overall power availability.

How to reproduce

1. Configure the Supermatter to output power via its SMES with the breaker box off. I assume this affects all power sources but I tested with the SM active.
2. Verify with mulitool that the main grid wire voltage matches the output of the SMES.
3. Activate the Supermatter breaker box.
4. Verify with multitool that the main grid wire voltage now equals the output of the SMES + the reactor output.
5. Deactivate the Supermatter breaker box.
6. Verify with multitool the available voltage on the main grid wire. It should incorrectly show greater voltage than the SMES output alone.
7. 5 tiles to the right of the supermatter SMES is a junction of cables for the main grid; one goes up towards the master power monitor located in the reactor waste management room. Cut the other cables at the junction to allow only the power monitor to connect to the SMES.
8. Verify with multitool that the avialable voltage running to the power monitor correctly shows only the output of the SMES.
9. Verify with multitool if the disconnected branches of the main grid wire junction show any voltage.

In my testing I found that tracing the wire with the aberrant voltage and cutting off branches as I went would eventually lead me to an area where, once cut from the main, would resolve the issue. Once the issue was resolved ( the main showing correct voltage and the faulty wires showing none ), I was able to replace any of the cut cable, without the issue returning. However, if I activated and de-activated the breaker again, I could replicate the issue and some portion of the network would seemingly "hold on" to the added voltage from the breaker box until I tracked it down and replaced the cable again.

Round ID

cwW-aqpl

Staff ckey

NA

[EJDenton]

After posting this, I did another test. This time I used the breaker box in the Engineering Main SMES room. The inbound voltage from the main line was 3 mW and the volatage from the Engineering Main SMES is 250 kW. You can see in the screenshot that the voltage in the subgrid does not decrease after the breaker box is deactivated.