Ring Main Unit - Pr Prod oduc uctt Pres Presen enta tati tion on
CG LUCY SWITCHGEAR
CG Lucy Switchgear Ltd is a joint venture company of Crompton Greaves Ltd.,, India and Ltd. and W.Lucy W.Lucy & Co. Ltd., Ltd., U.K. Establ Establishe ished d in 1994, the factory factory is situated at Nasik, India. With 30000 sq.feet of area, the facility has modern automated equipments with all major testing facilities, facilities, to guarantee quality products. CG Lucy is a ISO 9001:2000 Certified company.
New Factory
CG Lucy is the largest manufacturer of SF6 gas insulated Vacuum RMU in India. With near total population in many metro’s, our RMU’s make the metro’s of India to glow with reliable power. Oil RMU’s is another most sought product not only in India, but also in the South Asian countries, especially in Malaysia. This is an economical & highly reliable product which uses HT Fuse links immersed in the Oil chamber.
Ring Network
Distribution Network MAIN SUBSTATION
RMU
RMU
RMU
COMPACT SUBSTATION FEEDER PILLAR
‘SABRE ‘SAB RE’’ RI RING NG MAI MAIN N UNIT UNITS S (RMU (RMU)) - SF6 Encapsulated Vacuum RMU
‘SAB ‘S ABRE RE’’ De Desi sign gnat atio ion n Code
Product Description
VRN VRE VCE
Vacuum Ring Main Unit - Non Extensible Vacuum Ring Main Unit – Extensible Vacuum Circuit Breaker - Extensible
SSE DSE
Single Switch – Extensible Double Switch – Extensible
‘SABRE’ Range
SABRE VRE/ VRN: - 2 Rin Ring g Switches Switches + 1 Circuit Circuit Breaker Breaker SABRE SSE / DSE -1/2R Rin ing g Swi Switc tche hes s SABRE VCE -1C Cir ircu cuit it Bre Break aker er
SABRE : VRN
SABRE : VRE
SABRE : VCE
SABRE : SSE
Sing Si ngle le Li Line ne Di Diag agra ram m - VR VRE E
Vacuum Circuit Breaker
Off Load Switch
Ring Switch
Integral cable testing Facility
Ring Switch
Integral cable testing Facility
Extens Ext ensibi ibilit lity y – 6 way way RMU RMU (VRE+ (VRE+VRE VRE))
Tr. Feeder
Tr. Feeder
Extension for Future
Extension for Future
Loop IN
Loop OUT Loop OUT
Loop OUT
Extens Ext ensibi ibilit lity y – 4 way way RMU RMU (VRE+ (VRE+VCE VCE))
Tr. Feeder Extension for Future
Tr. Feeder Extension for Future
Loop IN
Loop OUT
Multi Circuit Range (MCR) RMU - SF6 Encapsulated Vacuum RMU
MULTI CIRCUIT RANGE (MCR) MCR is a versatile SF6 insulated Vacuum Ring Main Main Unit Unit – a comb combinat ination ion of vacuum circuit breaker unit and fault-make load break switches (Ring switch / Isolators). With front cable terminations, the system is highly compact and well protected with Padlock, interlock & earthing facilities.
MCR MC R – 5 Way Way Un Unde derr Ass Assem embl bly y
MCR MC R – Ra Rang nge e & Ext Exten ensi sibi bili lity ty
Tech Te chni nica call Data Data – SA SABR BRE E & MCR MCR Variants
Rated Voltage kV Rated Current A
S AB R E - VR E
SAB R E
MC R
12 / 15.5
24
12
630
630 for Ring Switch & 400 for CB
630
21 / 3
16 / 3
21 / 3
52.5
40
52.5
75 / 110 (optional) (optional)
125
Symmetrical Breaking Capacity Capa city kA / sec Making Maki ng Current Current kAp Impulse Withstand kVp Min Gas Pressure Pressure Bar
V R E - 6A
0
Fi lling Pressure Bar Index of protection protecti on
0.4
75 / 95 (optional)
0.5
0 0.4 IP 54
Side Bottom Rear Bottom Bottom
Front Bottom Front Bottom Top
935 1078 1470 450
1300 900 1400 540 (3way)
IP 54
Cable termination
Incoming Tee off Cable Tests
Side Si de Bottom Bottom Rear Bottom Bottom Bottom
Dimensions
Width Depth Height Weight kg
935 1030 1333 410
948 1085 1750 350
Applicable Standards RMU’s has been fully certified in accordance with IEC standards: - IEC 601 6012 29 - IEC 600 6005 56 - IE IEC C 6026 602655-1 1 - IEC 602 6029 98 - IEC 606 6069 94 - IE IEC C 60526 60526 & IEC IEC 6052 60529 9
Features
Low gas gas operatin operating g pressure pressure - 0.5 Bar Bar
Pressure indicator and SF6 recharging facility.
Gas pressure relief diaphragm for internal arcing.
Low Temperature rise of Busbars , hence hence no derating derating of switches at ambient ambient of 45 to 50 Deg C. CB Earthing through through Vacuum Interrupters Interrupters hence hence full rating for for earthing circuit. Operatio Operational nal Safet Safety y - We have have tested tested our RMU RMU with with ZERO ZERO gas gas pressur pressure e for satisfactory electrical performance.
Features
Stainless Steel Tank: SS is the most preferred material for Gas Insulated System because of its high resistance to corrosive and humid atmosphere. Extensibility: RMU is extensible on both sides. This feature give greater flexibility to Utility’s planning department to plan future extensions.
Outdoor Application: RMU is suitable suitable for outdoor application. application. It is IP54 tested. This prevents construction of extra room to house the switchgear. Gas leakag leakage e - For a SF6 SF6 Insulate Insulated d VCB type type RMU, RMU, the the chances chances of Vacuum bottle leaking and SF6 gas leakage from chamber, simultaneously are very rare. Hence in VCB type RMU provides a double protection scheme.
Featur Fea tures es – Vac Vacuum uum Die Dielec lectri tric c Mediu Medium m
Ionization of Gas: Since fault is broken in Vacuum Interrupter, the SF6 gas is not polluted. Constant dielectric: There is no gas decomposition products in vacuum and hermetically sealed vacuum interrupter keep out all environmental effects. Electrical life: Vacuum interrupters, have longer electrical life, duties exceeding IEC limits / requirements.
High total current switched: Since the contact piece erosion is small, rated normal current can be interrupted more than 20000 times and rated shortcircuit shortcircuit breaking current current on average average a hundred times. times.
Features - SF6 Leak Prevention
Stainle Stainless ss Tank Tank – Rob Roboti otic c Welding Welding
Tank Helium Leak Tested
SF6 Filling at 0.1 torr
Quarantine for 10 days
Low SF6 Pressure
Pressure Indication
Facility for SF6 Recharging on site
Transformer Protection
Time limit fuses Electronic Over current and earth fault relays Auxiliary powered or self powered Relays
Transformer Protection
Current Transformers with Relay for transformer protection
Cable Testing Step-1 Step-2
Step-3 Test Bushing
SABRE Cable Boxes
Bottom or Top Entry Side & Rear Termination for operator Safety
Full terminal access
Interlocked cable test facility
Facia Details
All Live parts fully covered All positions visible from front Padlocking in all position – ON / OFF OFF / EARTH EARTH
GA - Overview Bursting Disk Circuit Breaker operating Mechanism
Ring Bushing
Gas Pressure Gauge
Ring Switch Mechanism
Indication Operating Lever
Positively driven Indicators (3 positions)
Earth/Service operation interlock
Features: Mechanism
Highly reliable time proven mechanism.
Common frame for both switches ensure accurate center alignment.
Use of stainless steel and brass bushings eliminates effects of corrosion.
5mm thick stainless steel for Service/Earth selectors and interlocks to avoid possible damage due to mis-operations.
Ring Switch
Interswitch barrier
Insulated Drive Disc Support Disc
Key Advantages:
Reduced number of parts
Self aligning contacts
Compact design
Rear Support Disc allowing automatic self alignment of rear bearing
Ring Switch & Circuit Breaker Module
Fixed contacts for Circuit Breaker selector
CG make Vacuum interrupters
High Fault switching capability
Contact Arrangements
Hot Brass Stampings
A
B
C
Benefits over casting:
Better durability Better electrical and mechanical properties
A - Earth Earth Co Conta ntact ct B - Sw Switc itch h Blade Blade Pivot Pivot C - Line Line Cont Contac actt
Optional Accessories
Live line indication
Earth Fault Indicators
Emergency push button
Key interlocks
Motorization
Remote control & monitoring
SAFETY – Never Compromised
Insulated Drive Plate
FE Stress Analysis We are committed towards providing the best safety features & our products undergo rigorous testing for its reliability.
Robotic Welding
Module Building
Assembled in Pressurized Clean Room
Controlled entry for personnel and material
Only trained operators are used as per training matrix
Leak Monitoring
Chamber test
Leak Le ak Mon Monit itor orin ing g – Sn Snif ifff test test
•
Electrical Testing
High Voltage Test
TRIDENT OIL RING MAIN UNIT
‘TRI ‘T RIDE DENT NT’’ De Desi sign gnat atio ion n Code
Product Description
FRMU
Fused Ring Main Unit - Non Extensible
FRMUE
Fused Ring Main Unit – Extensible
EFS
Extensible Fuse Switch
NEFS
Non Extensible Fuse Switch
EOS
Extensible Oil Switch
‘TR ‘T RID IDE ENT NT’’ Ra Ran nge
TRIDENT FRMUE/ FRMU:
- 2 Ring Ring Switch Switches es + 1 Fuse Fuse Switc Switch h unit unit
TRIDENT EFS / NEFS - 1 Fus Fuse e Swit Switch ch unit unit TRIDENT EOS - 1 Swi Switc tch h uni unitt
FRMU Oil Ring Main Unit
Fused tee-off oil switch, with 2 ring oil switches in a separate chamber Transformer mounting or free standing Tripping facility manually, fuse striker pin or remote electrical signal
Technical Parameters
TRIDENT Variants Variants Rated Voltage kV Rated C urrent A Breaking Capacity Main / Earth kA Making Capacity Main / Earth kAp Impulse Withstand kVp Index of protection
FRMU / NEFS NEF S / EFS / EOS / DEOS DE OS Ring Sw itch Fuse Sw itch 12 / 15.5 630 400 0.63 20 55 / 55 50 / 7.8 110 110 IP 54
Exte Ex tens nsib ibil ilit ity y – FR FRMU MUE E & EFS EFS
RMU: Two incoming & Three Outgoing
Thank you
