Heng Lin of Li Haiming Liu
(bureau of industry of bare peak cable) origin: HTtp://tede.cn

Summary: Charge pattern through a powerful person that uses extensively to transformer substation of bare peak area sealed lead acerbity accumulator is being used actually, safeguard and manage administrative problem to undertake an analysis, undertook summary, classify to affecting the factor of accumulator life, undertook discussing to how improving the service life of batteries, and the maintenance with daily basis experience, offerred a proposal to the maintenance of accumulator.
Keyword: A powerful person charges pattern sealed lead acerbity accumulator fills discharge to control temperature compensation to defend management

Foreword

A powerful person charges pattern sealed lead acerbity accumulator (VRLA) there are a large number of applications inside power system transformer substation, its action basically is to be signal equipment, protection, automatic device, emergency lighting and breaker cent, operation closing gate to provide direct current source, below the case that breaks in exterior alternating current, assure to continue to provide reliable direct current source. The dependability of accumulator system, security affects the power supply dependability of power system transformer substation, security directly.

As a result of VRLA bulk small, explosion proof, safe, voltage is stabilized, pollute small, weight performance of light, discharge is high, safeguard relatively handy wait for a characteristic, be called again ” of “ maintenance-free accumulator, but “ maintenance-free ” is not to be not safeguarded, it is opposite Yu Yuan has open model acerbity accumulator of rich fluid lead maintains a volume little. Because be opposite,in moving actually the misunderstanding of maintenance-free is mixed a few do not safeguard the element that reach the designated position, create battery service life greatly short at academic life, should work originally 8 ～ batteries of 10 years, be in mostly 2 ～ damage inside 3 years, some life that connect 1 year even also short of, what use time grows is insufficient also 5 years, what give transformer substation thereby is normal move brought huge safety hidden trouble, make the slight weak point of dependability of transformer substation whole, at the same time of accumulator change prematurely caused huge pecuniary loss. Outside causing this kind of consequence to remove factor of batteries itself quality, because charge discharge control is unreasonable and safeguard undeserved and the situation that creates batteries to discard as useless ahead of schedule held very large proportion. Reasonable and reliable undertake manage and be maintenanced to batteries, can make sure batteries has longer service life. Origin: HTtp://tede.cn

Accumulator electrochemistry character is more complex, undertake to it fast and accurate capacity test is very difficult. Check result of technology, test to look from existing accumulator function and capacity, can accumulator reduce of online test technology is qualitative test technology. Include conductance law, internal resistance law, voltage to measure a law to wait, should return for qualitative test technology kind. And check discharge technology can return test a technology for ration kind. The side key of qualitative test technology is providing the reference of position of an accumulator performance at giving us, cannot accurate the actual size index that calculates whole group batteries or every monomer batteries. Stress of mensurable test skill depends on offerring an exact batteries size to be worth to us, can prop up the basis of ability finally as the direct current source after alternating current cuts off the power.
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