Low Voltage Distribution Board ( TGBT )

  • Thread starter Thread starter DeathstrokeDMX
  • Start date Start date
AI Thread Summary
The discussion centers on the requirements for a Low Voltage Distribution Board (TGBT) for a specific installation involving multiple cooling chambers, a residential building, and outdoor lighting. The setup includes a 630kVA power transformer supplying various circuits, including main and individual circuit breakers for each component. Participants emphasize the importance of having a qualified electrician or electrical engineer handle the installation due to safety and liability concerns. The thread concludes with a note that assistance cannot be provided in this context. Proper expertise is essential for ensuring compliance and safety in electrical installations.
DeathstrokeDMX
Messages
1
Reaction score
0
Hi, can any one help me with this Low Voltage Distribution Board?
My installation a below :

17 Cooling Chamber
01 Residential building
01 Emplyees Small-Camp
20 Outdoor lamps
01 Water Submersible pump
02 Spares

All theses are supplied from Power Transformer 630kVA - 30kV/400V ( 3P+N )
This distribution board should contains :
01 Main circuit breaker
17 Circuits breakers for each chamber ( 23kW - 62kW / 40A - 105A )
01 Circuit breaker for Residential building ( 2 Floor Standard residential building )
01 Circuit breaker for Employees Small-Camp ( 4 Room, 1 Kitchen, 4 Air Conditioners )
01 Circuit breaker for 20 X Outdoor lamps ( 150W )
01 Circuit breaker for Water Submersible pump ( 6kW )
02 Circuit breakers for Spares
 
Engineering news on Phys.org
Due to liability concerns, we cannot help you. This needs at least a qualified electrician, and possibly an electrical engineer. This thread is closed.
 
  • Like
Likes davenn
Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
While I was rolling out a shielded cable, a though came to my mind - what happens to the current flow in the cable if there came a short between the wire and the shield in both ends of the cable? For simplicity, lets assume a 1-wire copper wire wrapped in an aluminum shield. The wire and the shield has the same cross section area. There are insulating material between them, and in both ends there is a short between them. My first thought, the total resistance of the cable would be reduced...
I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
Back
Top