RU93046008A - METHOD FOR PROTECTING POWER SUPPLIES OF DISTRIBUTION DEVICES - Google Patents

METHOD FOR PROTECTING POWER SUPPLIES OF DISTRIBUTION DEVICES

Info

Publication number
RU93046008A
RU93046008A RU93046008/07A RU93046008A RU93046008A RU 93046008 A RU93046008 A RU 93046008A RU 93046008/07 A RU93046008/07 A RU 93046008/07A RU 93046008 A RU93046008 A RU 93046008A RU 93046008 A RU93046008 A RU 93046008A
Authority
RU
Russia
Prior art keywords
protection
power supplies
distribution devices
protecting power
increase
Prior art date
Application number
RU93046008/07A
Other languages
Russian (ru)
Inventor
С.Ф. Мокеев
А.С. Мокеев
Original Assignee
С.Ф. Мокеев
Filing date
Publication date
Application filed by С.Ф. Мокеев filed Critical С.Ф. Мокеев
Publication of RU93046008A publication Critical patent/RU93046008A/en

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Claims (1)

Изобретение относится к области релейной защиты электрооборудования и может быть использовано для дальнего резервирования при отказе защиты или выключателя отходящего присоединения при коротком замыкании на последнем. В целях повышения чувствительности защиты в диапазоне малых токов короткого замыкания, повышения пожарной безопасности кабельных коммуникаций предложен способ защиты, отличающийся тем, что отключение производится при превышении произведением двух величин, пропорциональных току и напряжению питающих вводов секций распредустройств, свыше заданной уставки.The invention relates to the field of relay protection of electrical equipment and can be used for long-distance backup in case of failure of the protection or switch of the outgoing connection with a short circuit on the latter. In order to increase the sensitivity of protection in the range of low short-circuit currents, to increase the fire safety of cable communications, a protection method is proposed, characterized in that the disconnection is performed when the product exceeds two values proportional to the current and voltage of the supply inputs of the switchgear sections above a given setting.
RU93046008/07A 1993-09-29 METHOD FOR PROTECTING POWER SUPPLIES OF DISTRIBUTION DEVICES RU93046008A (en)

Publications (1)

Publication Number Publication Date
RU93046008A true RU93046008A (en) 1996-10-10

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