Voltage Stabilizer, UPS, battery backup recommendations please?

[kartechnology]

Yes

cost? is it with the additional buckboost transformer or just the servo auto-transformer..pls post pics if u have,

i bought this 10kva for 22k in 2021, from varshanic chennai, with MOV added for surge protection. custom built case size as per my requirement. upto 300v input

I am thinking to buy a static one for home, probably a 5kw-3 phase one(triostat) if under budget or a 7.5kw single phase

 

[Phani24]

 

[Phani24]

Cost 27k.

 

[kartechnology]

got a quote from numax for
7.5kw ~195-264v~ 33.6k
7.5kw ~184-276v~ 39k
10kw ~184-276v~ 46k

where as sunpower-surat - 7.5kw 65k+gst and 10kva 58k+gst, no range mentioned
already one forum member has bought from nkb 5kw for 45k+gst, a 175-285v range

i am thinking to go with the 7.5kw 184-276v for 39k. asked for dark gray cabinet. its the closest to me in case of service access. they claim it has surge & spike protection, need to see if that's by default or just marketing, asked for internal pics. even though i think its a bit expensive still, i hope it will save me from getting any future issues with inverter ACs (mitsubishi heavy), and sony x90L, and other connected equipment.

 

[kartechnology]

Static stabilizer 7.5KW from numax... Will install tomorrow and share pics... Very good build quality

 

[kartechnology]

Filters and MOV's



uninyvin cables used inside - current rating max 43A

Installer came to install the very next day of delivery. good service and he's like they have improved the design and now failure rate is pretty less. as per him most installations are in petrol bunks and they imbalance it (3 phase stabilizers) causing the igbts to fail, harsh conditions. cabinet design is also new, easy to access panels. fan will run only after 60-70 degrees heatsink temperature. no noise.

i have the option to view the display over wifi and data logging, inputV, outputV, load% and any fault conditions. can remotely turn on/off the output

 

[mbhangui]

View attachment 84948View attachment 84949
Filters and MOV's


View attachment 84950
uninyvin cables used inside - current rating max 43A
View attachment 84951View attachment 84952View attachment 84953View attachment 84954
Installer came to install the very next day of delivery. good service and he's like they have improved the design and now failure rate is pretty less. as per him most installations are in petrol bunks and they imbalance it (3 phase stabilizers) causing the igbts to fail, harsh conditions. cabinet design is also new, easy to access panels. fan will run only after 60-70 degrees heatsink temperature. no noise.

i have the option to view the display over wifi and data logging, inputV, outputV, load% and any fault conditions. can remotely turn on/off the output

View attachment 84955View attachment 84956

Well constructed and neat. Nice to see some quality product.

 

[kartechnology]

Our forum member who bought nkb technocrats 5kw if they could open the unit and share pics, can see if the cost they charge is justified with difference in quality...igbt need to be checked if same or different..

 

[funnyprogrammer]

i have the option to view the display over wifi and data logging, inputV, outputV, load% and any fault conditions. can remotely turn on/off the output

How can you access it over WiFi? I bought 5kv unit from them.
Is there anyway to turn off display as well?