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MV-CONNEX Separable Connector System for Medium Voltage
Networks
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The medium-voltage MV-CONNEX connector range is ideal for use in ring main units, circuit-breaker switchgear, high-voltage motors, transformers, capacitors, transducers and sealing boxes. The connectors on the equipment-side are designed to meet EN 50180, 50181, and DIN 47637. The plug is suitable for all kinds of insulated plastic cables. As well as a wide range of standard types there are also customer-specific versions for every cable type. The MV-CONNEX system features numerous variations: in addition to the standard plug and socket combination, there are many other versions for testing purposes and special applications. |
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| Test standard: DIN VDE 0278 Part 6 high-current design II |
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CONNEX cable connector system
Size
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0 |
1 |
2 |
3 |
3-S |
Current rating |
IN (A) |
250 |
630 |
800 |
1250 |
1250 |
Max. working voltage |
Um (kV) |
24 |
36 |
42 |
42 |
52 |
AC voltage test |
50
Hz/1 min (kV) |
50 |
70 |
95 |
95 |
117 |
Nominal withstand
lightning impulse voltage |
1,2/50 μs
(kV) |
125 |
170 |
200 |
200 |
250 |
Partial discharge |
2
x Uo (pC) |
≤ 10 |
≤ 10 |
≤ 10 |
≤ 10 |
≤ 10 |
DC voltage test |
15
min 6 x Uo (kV) |
72 |
108 |
125 |
125 |
156 |
Rated short-time withstand current |
0,5
sec (kA) |
- |
50 |
50 |
63 |
63 |
Rated short-time withstand current |
1
sec (kA) |
16 |
31,5 |
40 |
50 |
50 |
Nominal impulse current |
(kA) |
40 |
125 |
125 |
150 |
150 |
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Advantages
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no liquid insulating medium |
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suitable for outdoor use |
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no need to open the cable termination at the installation site |
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thorough transformer and GIS testing by manufacturer possible |
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deckwater-proof |
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MV-CONNEX Multi-Contact Elbow
Bushing 24 kV – 52 kV
Multi-contact elbow bushings are used instead of DIN-standard
porcelain versions on the medium-voltage side of power transformers.
They distribute the current over two or four cables,
thus accommodating higher power loads using more manageable
cable cross sections. |
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MV-CONNEX Surge Arrester
6 kV – 52 kV
CONNEX surge arresters are used to protect metal-enclosed switchgear fitted with cable terminations in accordance with EN 50180/EN 50181. The surge arresters are connected to the switchgear transformer and prevent the entry of excessively high surges. The surge arresters are particularly effective in limiting surges caused by reflected travelling waves and switching overvoltages. |
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MV-CONNEX Busbar Connectors
24 kV – 42 kV
Busbar connectors facilitate the modular construction and onsite expansion of SF6 insulated switchgear, because the gas compartment does not have to be opened during installation.
The range includes 24 kV to 42 kV versions. |
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CMA-MV-CONNEX Motor Connector
The CMA-MV-CONNEX motor connector allows the quick and easy connection of high-voltage motors, with the connection area being fully metal-enclosed and intrinsically safe. The system is easily installed in place of the motor connection box. |
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Voltage Detecting Systems
The integrated capacitive potential point makes it easy to check the connection for the absence of voltage. The PFISTERER range includes mobile and stationary continuous voltage indicators, as well as phase comparators and performance testing equipment. |
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