20 Years manufacturer XJM7 Measuring Box (Low Voltage Power Measurement Box) to Guatemala Factory
Exterior and dimensions
We aim to find out quality disfigurement from the production and supply the best service to domestic and overseas customers wholeheartedly for 20 Years manufacturer XJM7 Measuring Box (Low Voltage Power Measurement Box) to Guatemala Factory, sincerely look forward to serving you in the near future. You are sincerely welcome to visit our company to talk business face to face with each other and establish long-term co-operation with us!
XJM7 series of lighting Power metering box is suitable in power centralized measurement management of apartment buildings office buildings. Pulse-type power meter can be installed to according to the design needs to achieve computer management. Besides, proper location is preserved to install remote-measuring remote sensing equipment. There are small circuit breakers installed in the cabinet to protect the line from overload, short circuit. The power meter and circuit breaker rated current are selected by design.
In line with GB7251.1-1997 and 7251.3-1997 standards.
A failed cutout 3 blocks away caused a surge and tripped the utility breaker. Procedure is to inspect the surge absorber for damage and reset. The reason I said leave the door open at ~0:36 is if there is a fault it will just blow out the open door rather than make a bomb out of it. This is a 1200A 120/208 service served by a 3.2Z 450KVA transformer 25 feet away (electricaly) with a 0.2 s clearing time on the load side an arcing fault is 19C. May seem a bit much but Im not the one to take a chance if there is a problem esp when dealing possible hidden damage due to surges and lightning. When surges and lightning happen they can leave conductive deposits and damage equipment in ways that dont show up untill its energized.
The noise in the background is the generator. The large grey cabinet is the automatic transfer switch, the small grey cabinet is the surge absorber, the silver cabinet contains the CT’s (current transformers) for the electric meter and the green cabinet is the transformer.
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