Mike Dolt Enterprises
Mike Dolt Enterprises
User: Electric-Light, Location: Fl
Asked on: Thursday, April 14, 2011 at 5:36 am EDT
Answered on: Tuesday, May 14, 2024 at 4:11 am EDT
Question: A microwave transformer has about 1.5kVA capacity and it provides its output with one end grounded to the core and the other end floating.How effectively could you carry power and how far using one 18AWG for 2100v AC and attaching the cores of sending side and receiving side to a big grounding rod so that you have a SWER system?(120->2100v) [SWER]----------------------------(2100v->120v)
Carrying Power and Distance
Using a single 18AWG wire for 2100V AC over a significant distance is not recommended for several reasons:
High Resistance
18AWG wire has a high resistance, which will cause significant voltage drop over long distances.
Current Limitation
18AWG wire is not suitable for carrying the high currents required by a 1.5kVA transformer at 2100V.
Voltage Breakdown
The insulation of 18AWG wire is not rated for 2100V AC, and it is likely to break down and cause a short circuit.
SWER System
A SWER (Single Wire Earth Return) system is not suitable for this application because:
Grounding
Attaching the transformer cores to a grounding rod is not sufficient for a SWER system. The entire length of the wire must be grounded, which is impractical for long distances.*
Voltage Isolation
With one end of the transformer grounded, the output voltage is not isolated from the ground. This poses a safety hazard and can interfere with other electrical systems.
Recommendation:
To carry power effectively and safely over long distances using a microwave transformer with a 1.5kVA capacity, it is recommended to use multiple insulated wires with a higher current capacity. The transformer cores should be isolated from the ground, and appropriate safety precautions should be followed. Flag for review