Operating voltage

The voltage of the battery, whose elements use a lithium ferrophosphate (LFP)-based positive electrode, varies between 300 and 435 V for a nominal voltage of 430 V. It comprises six modules connected in series. The volume of the battery is 300 liters. Its mass is 300 kg. 

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Tests on Cable Constructions. The Association of Edison Illumination Companies (AEIC) has approved an accelerated cable hfe test in which typical underground distribution power cables can be statistically compared based on their resistance to water treeing (number of days to fail). The comparison can be made by varying the type of insulation and/or other cable layers in an environment that contains hot water (90°C) under 8V/fi (200 V/mil) voltage stresses (four times the typical power cables operating voltages). 

Fig. 6. Alkaline—manganese battery operating voltage as a function of remaining capacity (21).

Battery couple Operating voltage range, V —wc/Ei— Energy density W-h/L... 

Maximum continuous operating voltage (MCOV), Vf (point 1 on the curve of Figure 18.4(a))... 

T = resistance of the CBCT / L = resistance of the connecting leads R, = resistance of the protective relay /re = relay operating current T,. = relay operating voltage at the relay current setting... 

Minimum excitation current required at the relay operating voltage... 

What is the maximum operating voltage across the power switches ... 

The start-up and bias supply eireuit provides the operating voltage for the eontrol IC and power switeh drive seetions. This eireuit is sometimes ealled the bootstrap start-up circuit. Sinee all of the power drawn and delivered by this eireuit is eonsidered a loss, it is important to keep its overall funetion as effi-eient as possible. 

The requirements for successful operation are a stable operating voltage of between 400 and 3000 V. The sensitivity of the photomultipliers is also dependent on this if a special compensation is not incorporated. 

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