The ZBT rectangular current sensor has the front side of the rectangle able to be Here's the strangest part I need help figuring out.
I'm not sure how there is a ground path for current with the generator neutral ungrounded and everything meggering sat as well. The generator meggered greater than 4200 megohms to ground. The generator neutral is ungrounded for reliability reasons since it is an emergency backup application. The generator tripped at various combinations of banks to attempt to get over 350 kW so the vendor said it wasn't one specific resistor bank that could be the problem child.
No anomalies and all the resistances in the load bank were balanced 4.4 ohms for each bank. The resistors in the load bank and the load cables from the generator all meggered sat. This is a large rectangular laminated core that surrounds the three load output cables, which theoretically would sense an imbalance in the magnetic field if one of the cables had a path to ground, similar to a GFCI theory. The Hi-Z ground fault relay gets its signal from a Hi-Z model ZBT rectangular ground fault current sensor. Each time the breaker trips we get the ground fault light which indicates the ground fault relay actuated the shunt trip. The generator output breaker is a TKM3F molded case breaker 1000 amps with a shunt trip coil wired to a Hi-Z model Z-2000 ground fault relay set at 200 amps at 6 cycles delay. The test requires the load to be maintained at 560 kW for 30 minutes but it keeps tripping when the load bank switches higher than 300-350 kW. The generator output breaker keeps tripping when the load is around 350 kW. An antenna is a straight line with 3 tiny lines branching off at its end, much like a genuine antenna.We have been testing a Cummins VTA-1710-G2 Diesel Generator 1800 RPM 480 Vac 671 kW with an Avtron K580 load bank that is hooked up to our three 480 Vac output cables and one cable to our facility ground.
A resistor will certainly be represented with a series of squiggles signifying the restriction of existing flow. For instance, a button will be a break in the line with a line at an angle to the wire, similar to a light switch you could turn on and off. When unconnected lines are shown crossing, you’ll see a line hop.Ī lot of icons utilized on a wiring diagram appear like abstract variations of the actual items they represent. If a line touching one more line has a black dot, it implies the lines are connected. Photographic representations are usually pictures with labels or highly-detailed illustrations of the physical components. Unlike a photographic representation, a wiring diagram uses abstract or streamlined forms and lines to show elements. Circuitry representations demonstrate how the cables are connected and also where they should located in the actual tool, as well as the physical connections in between all the parts.Įxactly how is a Wiring Diagram Different from a Pictorial Representation?
They are additionally useful for making repair services.ĭIY lovers utilize circuitry layouts yet they are additionally typical in home building and also car repair service.įor instance, a home building contractor will certainly wish to confirm the physical place of electric outlets and also lights making use of a wiring diagram to stay clear of expensive errors and developing code offenses.Įxactly how is a Wiring Diagram Different from a Schematic?Ī schematic shows the strategy and also function for an electric circuit, however is not interested in the physical design of the cables. Usage electrical wiring representations to aid in structure or manufacturing the circuit or digital tool.
When as well as Exactly how to Utilize a Wiring Diagram It demonstrates how the electric wires are interconnected as well as could additionally show where components as well as elements may be connected to the system.