Backup Power for Large Security Systems

Author: Brian Rhodes, Published on Jul 31, 2013

Choosing the right backup power system depends on system size. While small and medium systems greatly benefit from using UPS battery backup sources, larger systems need a centralized generator power source. How are these systems designed and specified, and what type of maintenance effort is needed to keep them ready to go at a moment's notice? We look at generator backup for large systems in the note.

Condo / Office Example

******** *********** ** ****** ***** ******* **** ******** ** ******* across ****** ** ****** **** **** ***** ************ ********** *** building(s). *** ***** ** ******* ** **** ****** * ****** UPS *** ***** ***. *******, ** ********* ******* ****.

** ********* ** **** ********* ** ******* ****** ***** **** a ****** ***** ****** **** **** ******. ** ********* ********* backup ***** **** ********** **** *** **** ***-** **** *** CCTV ****, ****** **** ******** ***** ***** ** **** *****. Having **** ******** ****** ****** ******** ************ *********** ****** ** keep ********* ** **** ******, *** *** *********** **** *** batteries ***** **** **** ***** *****.

*************, ******** *** **** ** * ****** ********* ** *** 220V **** *****. ********** * ****** **** - ****** ********* should ** **** **** ********** ** ***** *** ******* *** recording *********, **** ** *** ******* ****** *** **** (***** is * **** *********). *** **** ************ ******** ** *** Mains ********** ***** ** * '******* ******' ** **** *** generator **** *** ******** ***** **** ****** ********:

*********** *** ************** ******* ******* ** * ******* ****** ******** rather **** ********, ******* *** ********* ** **** ***** ************ box. ** ***** **** *** ********* ** **** ************** ****.

Benchmarking *** *****

*** **. ****:* ****** ********* ******, ** **** *********** *******? ****'* *** question ***** ******* **** ********** ****** ***** *** ***** *******. For ************, ******* **** *** *** ********* ** **** ************ panel:

  • **** ************ ***** ******** ** *******
  • **** ****** ******** * ******* ** *****
  • ******* **** ** **** *** ** ***** * ***** ** backup *****.
  • (*****=****/* * * ***** =**** *)
  • **** * ******* **% ********** ******** *********, **** ******* *** (*** ***** ***** ******) ***** ** ****** ** **** ************ *****, ** * cost ** $**** *** ****.
  • **** ** ************ ******, *** ***** **** ** *** *** the ****** ** (***$****): ~$*****.

****: **** ***** ** **** * ******** ****, *** **** not ******* ********** *******, ************, ** ***** *****. **** ****** excludes ****** ***** *** ********* *********, ***** ** ******** *********. 

Battery *********** *********

***** $*** ****** *****, ** ***** **** *** ***** ******* all ***** ** * *** ***** ******, ******. *** **** component ** *** *** ****** *** * ****** ** *********, each **** * ******* ******* **** *** **** ********* ********* over ****. ** ***** ********* *** *** ********* *********, **********/********* properly, *** **** ** *********** ********** *****, **** *** *********** fail:

** ***** **********, *** ********* ** *** *** **** ***** are **** *** * - * *****, ***** ***** **** must ** ******** ** * **** ** $*** *** ****. The ******** **** ** ********* ***** *** ** ***** ** ~$17000, ** ***** ~$**** ******. ***** ******** ***** ** *** include '****' ***** ***** ** ******** ********* *** ************ * maintenance *******, ***** *** *** ********* ** ****** ****** *****.

***** ****** ** ******* *** **** ** ********, *** ******* are *** *********** **** ******* ** ***** *****. *** *** systems **** **** ****** ****** *** **** ***** ***********, ********* backups *** ****** *********.

Backup *********

***** *** ******* **** ** * ********* *** ** ********* to ******* *** ***** *******, **** **** ** ** **** expensive, ****** ** ********, *** ******* ** ********* *** ****** systems. ** ****** ***** ****** *****: 

*****: ***** *** **** ****** ******* ********* *****, ** **** in * ******* *** ******* ********* *** ******** ****** ******* of ******* *******:

  • *** ******* * ** * = **** *****
  • ***** ******** **% ********** *******, *** ********* ***** ** ****** 10,000 *****.
  • **** ******* ** ******* ********* (****** & ******** ******) ***** ~$*,***.
  • (**** ********* ******** ~* ******* ** **/** ** ~$* *** ******, *** * ***** = ~$** ** ****)
  • *** ******* ****** **** ** ********* ** * ******** ***********. Presuming ** ******* ****** ~$**** *********** ***** *** **** ********, the ***** **** ** * ********* ******: ~$*,***

*** ********* ****** ** (***) **** ********* **** *** ********** battery ****** *** **** ******.

Fuel **************

***** ********* ***** * ****** ****** ** **** ****** *********. Unlike *** *****, ********* ******* *** ****** ********** ***********, *** that ******* ** ******* ** ******* *** ***** ****. ***** are ********* *** **** *******:

********/******

******** **********, ********** ******** ******, *** ******* ** ****** ********** fuels. ***** ***** *** **** ** ******* *** *** ** used ** * ******* ** *********. *******, ******* **** **** of **** ** *** ******.

  • ****** **** **** *** ***** ************. ** ********* ************ * *** ****** **** ** ********* *** *** ****.
  • ******** ****** ******* ** **** ******** ** *********.
  • ***** ********* *********** ****** **** ******** *** *** *** **** and ********/******** *** ****** **** ****** ***** *** ******.
  • **** ******* ********** **** ** **** ** * ********** **** and ************ ******** ******* ****** *********.

****** *** ********* ****** ** ********** ****, ** * ***** management ******* ** ******* ** *****, ***** **** ******* **** advantages:

******* ***/*******

*******, *** *** ***** ****** **** ***** **** ******. ********** much ** *** *****, ******* *** ** **** ******* ** a ****** ******* ****, *** ********* ********** (*** ********) *** available **** **** ****-***** ****** **** ******** ******** *********. ***** the ***** ****** *** ** ******** ****** ** **** ********* that *** ** ****** *****, *** *********** ******* ** ***** fuel *** *** ********** ********* ** **** ****** ******** *** disadvantages. 

****** ***** ******* ** ******** ** ****** *** ******* ****** an ********** ** ****, *** ***** *** ****** ****** ** using * ********'* ******** ******* **** ******.

Transfer ********

**** ******, ********* **** ******** ** *** **** *****, ** where *** *********'* ****** ***** ****-** ** *** ******** ******. The ******** ****** ******** * ********* **** '**** *******' ***** into ****** ********, *********** ******* ****** ******* ** ****.

"********* ******** ********" **** ****** * **** ******* ****, ************* cut **** *** ***** *** ****** ********* *** ******. **** feature ******** * ********* ***** ****** ***** **** *** ** manually ****** **.

Dealing **** '*** ****'

*******, **** **** * *********, ***** *** ***** ** * need *** ******* ****** ****. ******* **** *** ******* ** DVR ***** ****** ** ********* **** * ******* *** *** two *******:

  • ***** **********:********* ***** ** *********** '*****' *** ** *****, ********* *** potentially ******** ** ********* ***********. * ***** ********* ***** ** prevent ************ ******* *** ** ***** ****** *** ***** ***/********* syncs
  • "****" *****: ***** ** * ***** **** ****** ( ********* ******* seconds *** * ******) **** * ************ ******* ****** ***** between * ******* **** *** **** *** ****** ********* ******** new *****. **** ***** ***** ***, **** ****** * '****', is **** ******* ** * *** **** ** ***** ********* devices **** ******* *** ****. ***** * ***** **** ** power *** ***** ***** ***** ** ****** ** ***** *** be *** ** ******* *** * ****** ** **** ** a ******.

***** ***** ** '*******' ********* ** ****** **** ***** ****** **********.

Electrician *************

****** ********** *** *******, ****** ****** ** ********* ****** ******* involve **** *******, ******** **** ********, *** *** *****. **** requires *********/****** ***** ********* ****** ***********. 

Comments (11)

*****, ******* **** "**** *** *****" *******. * ***** **** the *** *** ********* ******.....** ** *** ** ****. **** I **** ** **** ** * ***** ******** **** **** cannot ** ** ************. ** ******* **** ** **** ** the ******** ************ *******. ********* ** *** ********** ** *** site, * ********** ******** *** **** ** "****" **** **** the ******** ************ ********* *** ** * ******* ** **** be ** *** ***** ** **** *** *** ********** **********. In **** ****, ** ***** **** ********* ***** ** **** form ** ******* ** **** *** ***** ******** ***/** *** switches ********* ********** ..........*** *** *** **** *** ****** ******* *****/**** ******.**** ***** ** * *********** *** ******** *** ******** ** existing ********** ******* *********** **** *** ****... ** ** ***.

"***** ***** ** '*******' ********* ** ****** **** ***** ****** generators."***% ******* *** * ***** **** ********* ***** ***** *********** on *** *** ******** (******** **** ** **** ** ******** the *******) ** ****** *** ** **** **** *** *** flips *** *** **** ******* ***** ** ** *** *******.

**** **** ** *** ***** *********** *** ************ *** ************ is **** (*** ******* *********). *********** ** ****** ** *** bid ******. ******* *** *****, ***** ** ** ***** *** like ****** ** ******* ******* *** ***** ** *****:)

****** *** ******** ** **** **** ****** *** **** ******** and ***** *** ** ***** ******** ********* ***** **********, ***'** rarely *** * *** ***** ** ***% *****. ** ****** always ***** **** ** *****, *** ********** ****** ** **** off ** *** *** ** **** ******* **** ****.

^^^ ** ** **********, **** ** **** ****. *** * sad *******.

* ************ ******* ***** *** ** **** **** *********** ** the ***** *******:

*** *** ************ ****** **** ** ******* * *** **** is ****. * ***** ********* ******* **** ****** *** *** 1800W. **** ***** * ************ ****** ******* **** ***** ****** 520 *** ** *** ******* **** ** *** * **= 1560W **** *** ***. ** *** *** * **** ********* time *** **** **** ********* *** **** *** **: *****/ UPS ***/******* ** ******* ******/******** ** ******* *** ***** ***/ derating *** ****** ******* ******** (****) **** *** ********* ********. UPS *** ** **%, ******** *** * **** *** ** 0.8, ******** *** *** ********* ******* ** * **** ***** battery *** ******** ** *.*.

*** **: *********/*.**/***/*.**/*.* = ******

** ***** ***** **** ** ***** *** ********* ***** *** in *** ***** ** $*** *** ***** *******. *********, *** and ***** ***** ** ***** $****. *** * ************ ****** would ** ***.

***** *** ********** ***** *** ********* ******* *** ********* ********* an ********* ******** ****** ***** **** ** $****+. *** ***** for ************ **** ***** ** ******* *** ******** ******** ******** for ***** ***, *******, ***** *********. *** *********, ***** **** need ** ** ******* ** *** ******** (+*******). *******, *** the ******* ***** * (**** **** ********) ** ***** ******* have * ********* *** ****** ***** *** *** ********, ***** control *** **** *****. *** *********** **** *** ****** ** additional **** ** *** * **** ********* ***** *** ** significant.

** ******** ***** *** ********* ********* ******* *** *** *********** of ***** ******* ** ******** ******* ** *** *********** **** get. *** ******* *** *** ******* ******* ** ******* *** following ***********: ****** *** **** ** ** ****, **** * month ** ******** ***** ******* *** *** *** ******* ** 80% **** *** */* ** ****, ****-****** ******* ** *** mechanic, *** **** **** *** **** **** ***** **** *** 2hr. ****** *********** ***** ** *********** *** ********* *******.

** **** ***** **** ****** ****** ********** **** *********** **** and **** ** ** ******** **** **** **** *** ** on **** ******* ** **** ***********, ** ********* *** *** connected ****.

* ******** ****** **** ***.

******,

"** **** ***** **** ****** ****** ********** **** *********** **** and **** ** ** ******** **** **** **** *** ** on **** ******* ** **** ***********, ** ********* *** *** connected ****."

*** **** * ***** *****. * ***** ****** ********* ******* on **** *******, *** ** *** ******, ****?

****, *'** ******** *** ********* *** ************* **** **** ****** the $*** ****** ** ***** ** *** $*** *** ****. But **** *****, *** *** ******* ***** *********, ******* *** UPS's * **** ***** **** **** **** ******* *********, ******* from *** **** **** ** *** *** ********** ** ************* automobile-size.

***** ******, ****:

***** ********, *** ****** *** *******!

**: ******* - *'** ****** *** ******* **** *** ***, and ******* ** *** *********** *****, ***** ***'* ** *** it ** *** ******** ** ******** *** ** *** ***** components. *** ********* ** ******** ** *** ****** ****, *** the ******* ******** ****** ***.

**: **********/******** ****** - * ********** *** ****** ***** ** Robert. * ******** **** **** *** ******* *** *** **** of ***********, *** ******* * *** ************* ********* '******* ******' that ******** *** *****. ** ******** ********, *** ** *** calculate ********** *** ******** ******? *** ***** ***** ** ************ spec ******? ** ***** ****** ****** ********* ** *** **** are ****?

**: ********** ********* *****: *****, ****** *** ****** ***** **! Based ** ** *** **********, * ******** ******** **** ********* typically *******, **** ***** ********* **** ** ******* ******, *** your ***** ** **** **** *** *******. ******.

**** ****** **** '*********** ****', ** *** ******** ****** ******** them ***? ** *** **** ** ******* **-*****?

*** ******* **** ****** ****** ******* ** *** ******* ** called *** ********. ** **** ******* ***** ****** *****. *** the **** *****.

****://***.*********.***/*******.***

*** **** ** *** *** ******* ********* ** * ********* set ** ****** *** ****** ** ******* ***********. *** **** batteries ** ******** *** ** *** ****** ** ******* ***** on **** *********** ******* ** ********* ***** ********. ****** ********* can ****** * ****** *** ** ************, *******, ************* **** kill *** *******. * *** ******* ** * ********* *** will **** ****** *** ******. **** ********* * ******* *** with * ****** ****** *******, * ********* ** *** *********** to ******* *** ****** *** ** **** *** *** ** disimilar ****. **** **** ***** **** *** ***** * ******* set ** *** ****, ***'* *** *** *****, ************ ** age.

***** ********* *** ***# ****. ***'** **** ** ******** ** as **.

****, * **** **** *****.

** *****:

** *** *** ******* ******** *** **** ** *** **** hands ** *** ************ ****** *** *** **** ** *******. The ********* ** ******* *** ** *** **** *******. *** 4 ***** ** ** ****, *** **** ** ****** *** battery **%

*** *********** *** ****** ********* ******** *** * *******, *** manufactuer **** **** *** ******** ***** ** * ********** ********* period. *** **** ******* ** ** ****, *** ******** ********* (golf *****, ***** ******, **** *****,..) **** *** ******* ********* on ** * ** ********* ******. *** ************ **** **** the ********* ******** ** *** ******* ********* ** *** ********* period **, **, *, *, *, *, ***** *** *******. For *** ******* *** **** * ****** ** * **** battery, ** **** *** ********* ******** *** *** ********* *****:

**** ****

**** **.***

*** **.***

*** * **, * **** ************ *** **********:

**.* + (*-*)/(**-*) * (**.*-**.*) = **.**

*** ******** ****** ** **** **/**.** = *.**

*****, **** **** ******* *** **** **** ******** ********!

** **** ***** ******* **** * ******* ** *** ******* video ****** **** ********* *****, ** *** *** *****/********* *** high-risk. *** * *** ** ***** **** ********* *** *** video ******* **** ** *** **** *****, ** ****** **** to ******* ** ******* ******** *** *** ******* *** *********. This ******** ******* ********** ** ******** *** ******* ** *** data ******* ** **'* *** * ******-***-******* ****** ***. **** external *******, *** **** ** **** *** ******* ******** *** application ********, ****** ******** *** ******* ******** ** **** ** for *******, ** ***** **** ********** *** ***** ****** ** startup (**** ** ******* *** ***** *****). ***** *** ****** issues ******** ** ****, ***. *** **** ***** ** ** make ******* ******** *** ******* ** ***** *********** ***** *********.

* **** ** *** ****** **** ***** ****** ********* ***** based ** * ******** *****, *** *** ** ***** ****** the ***** ******** *** *********, *** ** ***** ***** ** retrieved. * **** **** **** **** *** ******* ***** ***** in **** ***** ** * ****** ********* **** ****** ***** to ** ****** ********* **** ** *** ******* ******** (**** includes ***** ******** *** *********** *********) ** ****. *** *********** architecture ****** ** * ****** *** *** ***** *** ** article ***** ****** *****.

********* ******* *** **********!

**** ********** *** ***'* *** ** ********** **** ******* ****** which ********* **** ****** ** *** *******, ** *******, *********** and **** ****** *** * **** ** ***** ******. **** if *** *** *** ******** ******* * **** ********* **** many *****, ****** ** *** **** ***** ********, ** *** alarm ******* *** ***********. ***? * **** ***** **** ** the *********** ********** ***** *******, *** ** * ***, **** are ** * **** *** ** ******.

*** *** ****** **** ***** **** ******** **** *****? * was ******* ***** ***** **** ***** ***, *** **** ****** like * ********* ********.

**** *******. * **** *******, *******, **** **** ****** ***
** *** ********* ***** (******** *****) ** ***** *** ******.

*** ******* ****,

* **** ************ ***** ******** ** *******
* **** ****** ******** * ******* ** *****
* ******* **** ** **** *** ** ***** * ***** on ****** *****.
* (*****=****/* * * ***** =**** *)

****** *** *****/**** ** ******** *********** **** ** ****
** ** ********:

*** **** **** ** *** **** ** ***** ******.[*] *** equivalent
********* ********* ******* * ***, ***** *** ***** ** *** rate
** ******** ********, ***** ** ** ***** *** **** *** hour.[2]

*** ******* ********* ** **** ********* ***** **,

* **** ************ ***** ******** ** *******
* **** ****** ******** * ******* ** *****
* ******* **** ** **** *** ** ***** * ***** on ****** *****
* ** ******* * ** *****/****** = *** *****, ************ for
******* **** ** *******
* *** ***** * * ***** = **** ****-*****, ** 1.32 ***

**** *** ***** ******** **** *** ***, ** ****** *** long ***
******* **** ******** ** ** ***, ** *** *****. *** amount **
****** ******** ** *** **** *** * ***** ** *.** kWh. ***** ***
*** ******* ***** ******* ***** *** ******* *** *******, ***,
** ****** *** **** **** ** *** ** use.

***** **** **** **% "***** ***** *** ****** *********" **** a
*** **** ** * *****, *** *** ******** ***** * "Best *****"
************** **,

*** *****-*** ** ****** *** & ****** ****
+ (*)********* ******* **** $*,***.**
*** ****: *** *******
**** ******(*): ********* + (*)*********
% ** *** ******** ****: ** %

**** ** ******** *** *** ***********, ********* *** ******* **
*** **** ******* ** *** ******** *** *******.

*** ********* **** ** **** ****** ***** ** ** * $1460 ~ $**,***,
******* ***-**** ** *** ******** ** *** ******* ***** ** sloppy
*** ** ******** *****.

******** ***** *** **** ********* ** *** ******** ** *** generator
****, *** *** ******* ** ** *******/***** * ** ****** = *** *******,
** *** ********* **** *** **** ** *** *******. ** have **** **
******-**-******* **********.

* ******* ********** ***** ******* * * ** ********* ** run *** *******,
******** *** **** ** *** ********* ******.

*** ***** *********** ** *** ******* *** *******, *** ***** have
**** ********* ******* ** *** ******.

***, *** ******** ** ****** ****** @ **/**/** **:**** ** good, ***,
**** ***, * ******** ****** **** ***.

[*] *********** ******** *** * **** = * ***** / second

[*] ** ***** *** **** *** **** ** * ***** physical ****, *** ** **
* **** ** ************ *** ***** *** **** ** ***** take ** ***
** * ***** ***** (* ***** **** ** ******** ********).

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