028 3742 1888
028 3742 1888
Morstar Lightning Arrester Morstar Lightning Arrester The Surge Arresters type MSLA were designed to operate in distribution systems, in tensions from 3 to 36 kV, It was specially designed to protect transformers, capacitors bank, primary stations, lines, extensions, against power surges in medium voltage distribution systems. The Metal Oxide Variation (MOV) is enclosed by a cage made of ECR fiberglass core, providing a rigid structure, ensuring high mechanical resistance. The silicone rubber housing, resistant to UV radiation and weather conditions in general is vulcanized directly on to the Metal Oxide Variation (MOV) blocks, the ECR fiberglass core and aluminum terminals, fully incorporating the components without leaving voids or gaps, providing an excellent system seal. It was equipped with automatic dis-connector whose performance curve coordinates the operation with 12k fuse links.
 
S000174 Protections Quantity: 1 cái

Morstar Lightning Arrester

  • The Surge Arresters type MSLA were designed to operate in distribution systems, in tensions from 3 to 36 kV, It was specially designed to protect transformers, capacitors bank, primary stations, lines, extensions, against power surges in medium voltage distribution systems. The Metal Oxide Variation (MOV) is enclosed by a cage made of ECR fiberglass core, providing a rigid structure, ensuring high mechanical resistance. The silicone rubber housing, resistant to UV radiation and weather conditions in general is vulcanized directly on to the Metal Oxide Variation (MOV) blocks, the ECR fiberglass core and aluminum terminals, fully incorporating the components without leaving voids or gaps, providing an excellent system seal. It was equipped with automatic dis-connector whose performance curve coordinates the operation with 12k fuse links.
     
Technical specification:  Surge Arresters 5 kA and 10 kA for MV Systems to 36 kV
Normal Duty Protective Characteristics Type MSLA-05kA    
Catalog number Rated
Voltage
 
(Ur)
Maximum
Continuous
Operating
Voltage
MCOV (Uc)
Current impulse residual voltage 2000 µs   Rectangular
  current impulse
withstand
4/10µs
High
  current impulse
  withstand

Creep age distance

  Dimension
 
1/4µ s
  Steep
  Current
  impulse
8/20µ s
  Lightning
  current
  impulse
30/60µ s
Switching
current
impulse
 
A B  
kV(rms) kV(rms) kV(crest) kV(crest) kV(crest) A(crest) kA(crest) (mm) (mm) (mm)  
MSLA-0503 3 2.55 9.5 9 7.7 150 65 335 230 120  
MSLA-0506 6 5.1 19 18 15.4 150 65 335 230 120  
MSLA-0509 9 7.65 28.5 27 23.1 150 65 450 260 150  
MSLA-0510 10 8.3 36 30 27 150 65 450 260 150  
MSLA-0512 12 10.2 38 36 30.8 150 65 550 290 180  
MSLA-0515 15 12.7 47.5 45 38.5 150 65 550 290 180  
MSLA-0518 18 15.3 57 54 46.2 150 65 650 320 210  
MSLA-0521 21 17.0 66.5 63 53.9 150 65 750 350 240  
MSLA-0524 24 19.5 76 72 61.6 150 65 850 380 270  
MSLA-0527 27 21.9 85.5 81 69.3 150 65 950 410 300  
MSLA-0530 30 24.4 95 90 76.5 150 65 1050 440 330  
MSLA-0533 33 26.8 104 99 32.4 150 65 1160 470 360  
MSLA-0536 36 29.0 114 108 100.1 150 65 1160 470 360  
Notes:
1.  Reduce creep age by 1.45 inches (36.8mm) when ordering without insulating bracket.
2.  Weight does not include metal mounting hardware
3.  MCOV = Maximum Continuous Operating Voltage that may be applied continuously between the terminal of the arrester.
4.  The equivalent Front-of-Wave is the maximum discharge voltage for a 5kA impulse current wave which produces a voltage wave cresting in 0.5 μs. 
5. Based on switching surge current impulse of 45x90 μs, 500 amperes. 
High Duty Protective Characteristics Type MSLA-10kA    
Catalog number Rated
Voltage
 
(Ur)
Maximum
Continuous
Operating
Voltage
MCOV (Uc)
Current impulse residual voltage 2000 µs Rectangular
  current impulse
withstand
4/10µs
High
  current impulse
  withstand
Creep age distance
Dimension
 
1/4µs
  Steep
  Current
  impulse
8/20µs
  Lightning
  current
  impulse
30/60µ s
Switching
current
impulse
 
A B  
kV(rms) kV(rms) kV(crest) kV(crest) kV(crest) A(crest) kA(crest) (mm) (mm) (mm)  
MSLA-1003 3 2.55 9.5 9 7.7 250 100 335 230 120  
MSLA-1006 6 5.1 19 18 15.4 250 100 335 230 120  
MSLA-1009 9 7.65 28.5 27 23.1 250 100 450 260 150  
MSLA-1010 10 8.3 36 30 27 250 100 450 260 150  
MSLA-1012 12 10.2 38 36 30.8 250 100 550 290 180  
MSLA-1015 15 12.7 47.5 45 38.5 250 100 550 290 180  
MSLA-1018 18 15.3 47 54 46.2 250 100 650 320 210  
MSLA-1021 21 17.0 66.5 63 53.9 250 100 750 350 240  
MSLA-1024 24 19.5 76 72 61.6 250 100 850 380 270  
MSLA-1027 27 21.9 85.5 81 69.3 250 100 950 410 300  
MSLA-1030 30 24.4 95 90 76.5 250 100 1050 440 330  
MSLA-1033 33 26.8 104.5 99 84.7 250 100 1160 470 360  
MSLA-1036 36 29.0 114 108 92.4 250 100 1160 470 360  
Notes:
 1. Reduce creep age by 1.45 inches (36.8mm) when ordering without insulating bracket.
 2. Weight does not include metal mounting hardware.
 3. MCOV = Maximum Continuous Operating Voltage that may be applied continuously between the terminals of the arrester.
 4. The equivalent Front-of-Wave is the maximum discharge voltage for a 10kA impulse current wave which produces a voltage wave cresting in 0.5 μs
 5.  Based on switching surge current impulse of 45x90 μs,500 amperes. 

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