The primary and secondary fusion ring cage is an intelligent complete set of equipment introduced in response to the latest national grid standard “Technical Standard for primary and secondary complete sets of equipment for Power distribution”, which integrates electromagnetic voltage, current transformer, energy metering module, high-speed fault transient fi lter and other advanced technologies. It consists of loop in loop out unit, feeder unit, bus equipment (PT) unit, centralized DTU and connecting cable. It can collect active power, reactive power, power factor, frequency, zero sequence current and zero sequence voltage, with line loss measurement, electric energy measurement functions, as well as line voltage identifi cation, voltage over limit, load over limit alarm sending, short circuit fault detection and processing. The single-phase grounding fault detection and handling function supports the transmission of short-circuit or grounding fault events to meet the automation requirements of the distribution network.

Model Meaning

Conditions Of Use

• Altitude: 1000m and below;

• Ambient temperature: -10 ℃ ~ +40℃ ;

• Relative humidity: daily average is not more than 95%, monthly average is not more than 90%;

• Place of use: there should be no conductive dust and corrosive, flammable and explosive dangerous goods that are harmful to metal and insulation;

Main Technical Parameters

Main Feature

• On the basis of the traditional DTU function, the metering level distribution line loss collection function is added, the judgment and location function of small current grounding fault is optimized, and the sampling frequency is increased, so that the fault waveform is closer to the real waveform.

• To meet the requirements of feeder automation, the controller takes line voltage as the criterion, realizes local fault processing through delayed closing and substation protection, does not need batteries, does not rely on communication and main station, and can achieve complete feeder automation function on the spot;

• Clear distribution network automation system function distribution, easy to operate;

• The use of frequent operation load switches/circuit breakers to meet the requirements of distribution network automation and economic operation;

• Built-in isolation fracture and vacuum interrupter series asynchronous linkage, switching ability is strong, high safety;

• Three-phase common box layout, porcelain sheath cable casting line, full sealing mechanism, military-grade aviation plug, the whole full sealing technology to ensure strong weather resistance, good condensation resistance, 15 years maintenance-free;

Typical Scheme Of XGW-12/24/36 Series Primary And Secondary Fusion Ring Cage

Ring cage	V	V	V	V	V	V	Gpt	PT	Dc panel
External dimension (*D*H)	380*770* (1500+500)	380*770* (1500+500)	380*770* (1500+500)	380*770* (1500+500)	380*770* (1500+500)	380*770* (1500+500)	380*770* (1500+500)	520*820* (1500+500)	600*600* 1600
Ring cage number:	G01	G02	G03	G04	G05	G06	G07	G08	G09
High voltage single line diagram									Dc panel spacing
use	Inlet and outle cable cabinet	Inlet and outle cable cabinet	Inlet and outle cable cabinet	Inlet and outle cable cabinet	Inlet and outle cable cabinet	Inlet and outle cable cabinet	Bus PT cabinet	Enter the PT cabinet
Circuit breaker HBZN□- 12/630	1	1	1	1	1	1
lsolation switch HB GL-12/630	1	1	1	1	1	1	1
Load switch HBFLN□-12/630
Ground switch	1	1	1	1	1	1	1
Operating mechanism	DC48V	DC48V	DC48V	DC48V	DC48V	DC48V	Manual operation
Busbar connector			12kV/630A
Insulating plug
Barometer with contact
Intelligent dehumidifier	LXK-LN01 Apiece LXK-	LXK-LN01 Apiece LXK-	LXK-LN011 piece LXK-	LXK-LN011 piece LXK-	LXK-LN011 piece LXK-	LXK-LN011 piece LXK-	LXK-LN011 piece LXK-	LXK-LN011 piece LXK-
Live display	GSN-QDC48V	GSN-QDC48V	GSN-T	GSN-T	GSN-T	GSN-T	GSN-T
Electromagnetic lock								DSNII-F-Y DC48V 2 piece
Ground and short circuit fault indicator
Integrated current transformer	Measurement 500/5A 0.5 10VA protection 600/5A 10P20 10VA1 station
Through-core current transformer
Zero sequence	150/5A 10P10	150/5A 10P10	150/5A 10P10	150/5A 10P10	150/5A 10P10	150/5A 10P10
current transformer	5VA 1piece	5VA 1piece	5VA 1piece	5VA 1piece	5VA 1piece	5VA 1piece
amperemeter
Intelligent instrument	HB-101 1piece	HB-101 1piece	HB-101 1piece	HB-101 1piece	HB-101 1piece	HB-101 1piece	HB-101 1piece	HB-101 2piece
Relay unit	HB300 DC48V	HB300 DC48V	HB300 DC48V	HB300 DC48V	HB300 DC48V	HB300 DC48V
Intelligent communication management machine								Communication management machine (with encryption module)1  set
Dc power supply									DC48V65AH
Voltage transformer							10/ √3/0.1 √30.1 √3/0.1/ √3/0.21 0.5/3P30/30/50VA 1sets	10/0.1/0.22KV 0.5/3P 30/1000VA 2 sets
High voltage fuse							1A3 branches	1A6 branches
voltmeter
Voltage change-over switch
PT insulation monitoring device
Lightning arrester
Front cable connector	Specifications to be determined
Rear plug the cable connector	CC35mm²1set	CC35mm²1  set					CB35mm²1  set
PT elbow head
Remark	Convefiona pratecion,votage and curentype						3×35mm²1 set	3×35mm²2  set