REF615C_D HCFDACADAND2BNN1XD Feeder protection and measurement and control device

Description

REF615C_D HCFDACADAND2BNN1XD Feeder protection and measurement and control device

The REF615 feeder protection measurement and control device provides directional/non-directional overcurrent protection and control
Thermal overload protection can also provide directional and non-directional ground protection for feeders.
In addition to directional grounding protection, admittance grounding protection is provided in the standard configuration.
Harmonic ground protection or power ground protection. In addition, the device provides sensitive grounding
Protection, phase break protection, transient/intermittent ground protection, overvoltage and low voltage
Protection, zero sequence overvoltage protection, positive sequence undervoltage protection and negative sequence overvoltage protection.
Frequency protection, including overfrequency, low frequency and rate of frequency change protection is provided as standard
Set J and N devices provided. In addition, the device provides optional multiple automatic reclosing
Function for overhead line feeders.
The standard N also provides multi-frequency admittance ground protection for high-impedance grounded networks
For selective directional grounding protection. The protection function is based on the measured number of neutral points
Frequency admittance, the measurement of the multi-frequency admittance value needs to use the fundamental wave components in Uo and Io
And harmonic components. Dedicated filtering algorithm ensures intermittent grounding and arcing
In the case of reignition, the fault direction can also be identified safely and reliably. As a single
Unique protection function, the protection whether in low resistance ground, high resistance ground,
Or transient grounding/intermittent grounding/arc reignition conditions are guaranteed to be very good
Reliability and sensitivity.
As an optional feature, three arcs can be added by configuring the corresponding hardware and software
The optical detection channel realizes the cable room, bus room and break of the metal armoured switchgear
Arc protection of the router room.
The arc protection sensor interface is provided by an optional communication module. When arc failure occurs
When the arc protection can be fast action in a short time to provide personal safety
Guarantee and minimize the damage of arc failure to switchgear. Switch
The volume I/O module is available as an optional – contains 3 high speed switching volume outputs
(HSO), which can be further reduced by 4… 6ms
Overall movement time.

REF615E-1G

The REF615 feeder protection measurement and control device has directional or non-directional ground protection.
Directional grounding protection is mainly used in the neutral point is not grounded or compensatory power grid, but no way
Ground to ground protection is used in direct or low impedance ground networks. Devices can also be used for rings
Type and grid distributed networks and radiant networks containing distributed power sources.
Standard configurations C and D provide directional ground protection for outlets with phase current transformers
Protect. The zero sequence current for ground protection is calculated from the phase current. In action
In the process of use, especially when sensitive ground protection is required, magnetic balance current transformer
Can be used to measure zero sequence current.
Standard configuration J includes directional overcurrent protection and directional ground protection, based on protection and measurement
Quantity of voltage and frequency. Whether it’s plant generated electricity or from industrial power systems
The distribution network in the standard configuration can be fully supported. With standard configuration J
Equipped with a simultaneous inspection function to ensure safe grid connection. Standard configuration J also includes options
The power quality function enables monitoring and detection of current and voltage harmonics as well as shrinkage
Short system failure time.

Please contact Sunny sales@xiongbagk.cn for the best price.

➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
➱ QQ: 3095989363
➱ Website:www.sauldcs.com