12kV Auto Recloser

● Service environment

Air temperature: Maximum temperature: +85℃; Minimum temperature:-45℃

Humidity: Monthly average humidity 95%; Daily average humidity 90% .

Altitude above sea level: Maximum installation altitude: 2500m or more higher.

Ambient air not apparently polluted by corrosive and flammable gas, vapor etc. No frequent violent shake

●Offering With optional classes for rated current range:

--Type RCW12, Rating 6-12 kV with 630A, 16 kA up to 1250A, 20kA;

With optional classes for different grid application installation: Single phase & Three phase.

With optional relay protection& logics for user choice:

+Instantaneous over-current protection.

+Timing over-current protection

+Negative sequence over-current protection.

+Directional over-current protection(*).

+Over-voltage protection./Under voltage protection.

+Programable protection relay curves total 10 nos ANSI/IEC curves.

+Cold load pickup protection TCC +Hot line tag

+Earth protection EF/SEF +Zone Sequence Co-ordination

+More relay functions can be customized.

With optional communication protocols & I/O port for user choice:

RS-232 and RS-485 ports supporting.

DNP3.0 communication protocol support(*).

Modbus communication protocol is optional(*).

IEC 60870-5-101 communication protocol support.

IEC 60870-5-104 communication protocol support.(*).

IEC 61850 communication protocol support.(*).

The recloser can communicate through GPRS(Or GSM) modem with English or Specified language (*).

With optional functions for user.

Rated currents, System phase current.

Rated voltages, System phase voltage& secondary low voltage power supply voltage. Frequency, power(kWh),

reactive power(kV arh), power factor .

With optional reclosing interval for user pre-program:

Reclosing times setting support.

Dead time setting support.

With events recording function:

SOE 10000 operations record.

Fault record and normal operation record.

Note: (*) mean should customized by manufacturer if needed.

●Time-Overcurrent Curves The following information describes the curve timing for the curve and time dial settings made for the time-overcurrent

elements The time-overcurrent relay curves in conform to IEEE C37.112-1996 IEEE Standard Inverse-Time

Characteristic Equations for Overcurrent Relays.

IEC Curves:
	C1 (Standard Inverse) C2 (Very Inverse) C3 (Extremely Inverse) C4 (Long-Time Inverse) C5 (Short-Time Inverse)
U.S. Curves:
	U1 (Moderately Inverse) U2 (Inverse) U3 (Very Inverse) U4 (Extremely Inverse) U5 (Short-Time Inverse)

● PC software for controller Testing, Setting, programing, Update.

Human friendship interface                                               Programmable Time-Overcurrent curve

 

● Recloser feature a)Outline of recloser:

The RCW series vacuum recloser is mainly combined with integration terminal, current transformer, permanent magnetic actuator and it’s recloser controller.

b)The recloser tank feature:

The Vacuum recloser tanks are manufactured from 304# grade stainless steel and are powder coated a light grey colour. Whole recloser IP67 protection class, equipped with a auxiliary plug to connect with recloser controller by control cable, Diameter Max22mm, 6 M length (8M for special).

It’s can performance serve more than 20 years long term under heavy duty circumstance.

● Main new advantages of RCW

 

Visible ON/OFF indicatorIP67 class waterproof plug connector

1.Apply ANSOFT design the high performance magnetic actuator,high reliable and free maintenance

2.Manual closing device

3.Automatic Blocking Device for Manual opening

4.Mechanical locking device

5.Electronic locking device

6.Mechanical counter

7.Electronic counter

8.Visble on the ground reflector material mechanical open/closer indicator

9.IP67 inflatable tank SF6 Gas insulation,Pneumatic value,barometer

10.Integral type tank .Lifting lug, Earthing bolt

Note:The above parts are optional devices.Please provide requirement before placing an orde

 

Primacy incomer terminal (directly connect to interrupter reduce power lost) Current sensor (external modular design easy for quality control and maintenance) Accuracy: ±0.5% Ratio:800/1		Vacuum interrupter(Adopt the APG technology,increasing the whole insulation and weathering performance)
Internal Voltage sensors incorporated within the vacuum interrupter module It's equipped with two voltage sensors,one for measuring the voltage of incoming side,and another one for measuring the voltage of outgoing side.		shielded 4-conductor cable connection  Accuracy:±0.2% Voltage Sensor  Ratio:500/1 or 1000/1

 

● Creepage Distances of RCW

Description	12kV BIL 75/95kV	15kV BIL 95/110kV	27kV BIL125/150kV	38kV BIL 170/200kV
Terminal to terminal creepage	600mm	840mm	1250mm	1380mm
Terminal to ground creepage	510mm	760mm	1200mm	1300mm

 

● Main technical data

N	Item		Unit	Data
1	Rated max voltage		kV	12	15	27	38
2	Rated current		A	630/800/1250
3	Rated frequency		HZ	50/60
4	Power frequency 1min	Dry	kV	45	55	65	95
		Wet		30	45	55	80
5	Lightning impulse withstand voltage(peak)		kV	75/95*	95/100*	125/150*	170/200*
6	Rated short circuit breaking current		kA	12.5/16/20/25*
7	Rated short current switching current(peak)		kA	31.5/40/50/63*
8	Rated peak value withstand current		kA	31.5/40/50/63*
9	4S short time withstand current		kA	12.5/16/20/25*
11	Rated operating circulate			O-0.5S-CO-2S-CO-2S-CO
10	Breaking current frequency under rated short circuit		time	200
12	Mechanism life		time	10000
13	Secondary loop 1 min power frequency withstand		kV	2
14	Auxiliary voltage supply		Vac	220±20%
15	Battery bank		Vdc	12×2
16	Capacitor unit		Vdc	220

●Accessories of RCW

All above insulating components for BIL 200kV expanding using. Any question please contact with our engineer.

Upper voltage shield 3 pcs/set

Standard made of T2 copper material, for 630/1250A rated current using. With  expanding range.

Terminal 6 pcs/set

Map guide&location Monitoring&Controlling

 

 

Setting & Modification Event Records

 

 

●Master software for Distribution Automation Management