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01
SF6 insulated Ring Main Unit RMR-40.5 Series 30kV ,. 40.5kV
General
RMR-40.5kV is completely insulated SF6 SAFERIN (hereinafter short as SF6 insulated Ring Main Unit) This product is in conformity with the standards the GB/IEC standard and the design of a high safety combined switch cabinets.
The system of RMR-40.5kV of combined switch cabinets can be divided into three kinds of unit cabinet：
++++ 3 position cable connection unit (Cable switch unit), additional live shows and configuration of surge arresters and grounding fault component. Code C
++++3 position switch and fuse tripping system and earthing switch interlock system fuse combined electrical unit (Fuse combination unit), additional live shows and configuration of surge arresters and grounding fault component. Code F
++++3 position switch and vacuum circuit breaker
combined appliances unit (Vacuum circuit breaker unit), additional current transformer, live shows and Fuse combined electrical follow IEC 60420
VCB unit according to IEC 62271- 100/GB1984-2003 configuration of surge arresters and grounding fault component. Code V
The combination of the current transformer and the microcomputer protection to constitute the basic circuit protection function.
Microcomputer protection using passive protection and CT electric no need of additional PT power supply
----IEC62271-200
----IEC62271-100
----GB3804-2004
----GB3906-1991
----GB16926-1997
----GB/T11022- 1999
Fuse combined electrical follow IEC 60420
VCB unit according to IEC 62271- 100/GB1984-2003
Service environment
a) Air temperature: ±40℃; Daily average ≤25 °C
b) Altitude above sea level: Maximum installation altitude: 4000m
c) Wind: less than 35m/s
d) Earthquake intensity: no more than 8 degrees;
f) IP Rating :IP67 (Gas tank), IP44(Cable compartment),IP44 (Outdoor Enclosure,optional) IP54(Ingress protection)
Main technical specifications
| No | Item | Unit | Data | |
| 1 | Rated voltage | kV | 30/40.5 | |
| 2 | Power Frequency withstand voltage | Dry | 70/80/95 | |
| Wet | ||||
| Lightning Impulse withstand Voltage (peak value) | 170/ 185/200 | |||
| 3 | Rated Current | A | 630/ 1250 | |
| 4 | Rated short circuit breaking current (peak) | kA | 20/25/31.5(V) 31.5(F) | |
| 5 | Rated closed-loop breaking current | A | 630/ 1250(C) | |
| 6 | Rated cable charging interrupting current | A | 50(C) | |
| 7 | Rated line cable charging interrupting current | A | 10(C) | |
| Rated off circuit transformer breaking current | A | 16 | ||
| 8 | Rated making current (peak) | kA | 50(63/80)/2.5(main switch/grounding) | |
| 9 | Rated withstand current (peak) | |||
| 10 | Rated short time withstand current | 16/20/25/31.5 | ||
| 11 | Rated short time withstand time | S | 3/4 | |
| 12 | Mechanical life | times | C/F（2000）V( 10,000) | |
Each Panel face, dimension & function
| Customized Panel View | Type & functions | W×D×H mm |
|
Mainly for switching kiosk or cable branch box | 1C=500×950×1360mm 2C= 1000×950×1360mm 3C= 1500×950×1360mm |
| Extra bushing= 140mm |
| Standard Panel View Unit C | Standard Panel View Unit F | Standard Panel View Unit V |
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| 500×950×1950 | 500(568)×950×1950 | 500(568)×950×1950 |
| Note: 1, Unit V type LBS can be changed to be mounted on top for feeder cable outgoing system . 2, Unit V type incomer type with 3 nos VTs configuration width is 568mm . 3, Each unit can be connected with top busbar to be combined as Ring main unit | ||
| Combination complete common gas tank CCF |
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| Dimension 1500×950×1950 |
Other expanding configurations for reference
| Vacuum circuit breaker unit for incomer using | ||
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| Fuse combination for transformer protection using | ||
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| Cable switch unit | ||
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