RU96106787A - METHOD OF DETECTION OF PLACES OF VIOLATION OF INSULATION - Google Patents

METHOD OF DETECTION OF PLACES OF VIOLATION OF INSULATION

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Publication number
RU96106787A
RU96106787A RU96106787/02A RU96106787A RU96106787A RU 96106787 A RU96106787 A RU 96106787A RU 96106787/02 A RU96106787/02 A RU 96106787/02A RU 96106787 A RU96106787 A RU 96106787A RU 96106787 A RU96106787 A RU 96106787A
Authority
RU
Russia
Prior art keywords
series
insulation
measured
value
voltage
Prior art date
Application number
RU96106787/02A
Other languages
Russian (ru)
Other versions
RU2115774C1 (en
Inventor
А.И. Громыко
Г.М. Зограф
В.Д. Моргалюк
Original Assignee
Красноярский государственный технический университет
Filing date
Publication date
Application filed by Красноярский государственный технический университет filed Critical Красноярский государственный технический университет
Priority to RU96106787A priority Critical patent/RU2115774C1/en
Priority claimed from RU96106787A external-priority patent/RU2115774C1/en
Application granted granted Critical
Publication of RU2115774C1 publication Critical patent/RU2115774C1/en
Publication of RU96106787A publication Critical patent/RU96106787A/en

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Claims (3)

1. Способ обнаружения мест нарушения изоляции, включающий измерение тока серии и падения напряжения на участках электрической цепи тока серии, нахождение среднеарифметического значения измеренных напряжений, отличающийся тем, что измеряют действующее значение переменных составляющих падений напряжения на серии и определяют коэффициент связи между током Ic серии и переменной составляющей падения напряжения U~ на серии
K = Iс/U~,
после чего один из участков серии соединяют через блок-конденсатор с заземлением, измеряют действующее значение падений напряжений переменной составляющей на каждом электролизере, по результатам измерений находят среднее значение, затем определяют величину и знак отклонения измеренных напряжений на каждом электролизере от среднего значения и фиксируют место нарушения изоляции между электролизерами с отклонением измеренного значения больше нуля и отклонением меньше или равным нулю.1. The method of detecting insulation failure sites, including measuring current of a series and voltage drop on sections of an electric circuit of a series, finding an arithmetic average of measured voltages, characterized in that they measure the effective value of the variable components of voltage drops on a series and determine the coupling coefficient between the current I c of the series and the variable component of the voltage drop U ~ on the series
K = I s / U ~ ,
then one of the sections of the series is connected through a block-capacitor with grounding, the effective value of the voltage drops of the variable component on each electrolyzer is measured, the average value is found according to the measurement results, then the magnitude and deviation sign of the measured voltages on each electrolyzer are determined from the average value and the location of the violation is fixed insulation between cells with a deviation of the measured value is greater than zero and a deviation less than or equal to zero. 2. Способ обнаружения мест нарушения изоляции по п. 1, отличающийся тем, что сопротивление изоляции (Rу) и ток утечки (Iу) находят из выражений
Figure 00000001

Figure 00000002

где
Figure 00000003
- среднее значение падения переменной составляющей напряжения на электролизерах до зафиксированного места утечки и после соответственно.2. The method of detecting the location of insulation failure according to claim 1, characterized in that the insulation resistance (R y ) and leakage current (I y ) are found from the expressions
Figure 00000001

Figure 00000002

Where
Figure 00000003
- the average value of the fall of the variable component of the voltage on the electrolyzers to the fixed leakage place and after, respectively. 3. Способ обнаружения мест нарушения изоляции по п. 1, отличающийся тем, что сопротивление изоляции силовой сети относительно серии электролизеров определяют по величине постоянной составляющей падения напряжения измеренного между фазами силовой сети и шинопроводом серии. 3. The method of detecting insulation failure sites according to claim 1, characterized in that the insulation resistance of the power network relative to the series of electrolyzers is determined by the value of the constant component of the voltage drop measured between the phases of the power network and the series busbar.
RU96106787A 1996-04-08 1996-04-08 Process detecting points of insulation faults RU2115774C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96106787A RU2115774C1 (en) 1996-04-08 1996-04-08 Process detecting points of insulation faults

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96106787A RU2115774C1 (en) 1996-04-08 1996-04-08 Process detecting points of insulation faults

Publications (2)

Publication Number Publication Date
RU2115774C1 RU2115774C1 (en) 1998-07-20
RU96106787A true RU96106787A (en) 1998-07-20

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Application Number Title Priority Date Filing Date
RU96106787A RU2115774C1 (en) 1996-04-08 1996-04-08 Process detecting points of insulation faults

Country Status (1)

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RU (1) RU2115774C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340702C (en) * 2004-10-26 2007-10-03 沈阳铝镁设计研究院 Mobile grounding monitoring device and method of electrolytic tank series bus

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