balestro.com.br
sales@balestro.com
balestro
balestro.industria
balestroindustria
SUPERIOR QUALITY GUARANTEED
Brazilian company founded in the 50s, Balestro has
presented consistency in its production line throughout
its trajectory, began its activities with the manufacture of
transformers and surge arresters and over time gained
the market’s trust and respect. With the professional and
OUR HISTORY
technological evolution, Balestro has become a specialist
in the design, development and manufacture of products
for the protection of electric distribution and energy
transmission networks, being today the most respected
Brazilian company in the supply of surge arresters,
insulators and fuse switches, polymer technology products
for medium and high voltage.
SCR=20kA
The new generation
of Balestro's Distribution Surge Arresters
3kV to 42kV
The PROTEGE+ arresters offers biggest protection
to the system due to its capacity to withstand
short-circuit currents up to 20kA.
Heavy Duty Distribution Arresters - PROTEGE+
Rated Voltage
Nominal Current
Standard
Short Circuit Rating (0,2 s)
Polution Level
Accessories
Wildlife Protector
3 up to 42 kV
10 kA
Distribution High / Class 1
20 kA
“a” up to “e”
Disconnector Device, Insulating
Bracket, NEMA bracket
Included
Post Type Insulators
Dead-end and Suspension Insulators
15 to 45kV
Rated Voltage
Specified Cantilever Load (SCL)
Upper Terminal Material
Lower Terminal Thread
Rated Voltage
15 up to 45kV
up to 12,5kN
Specified Mechanical Load (SML)
50 up to 80kN
Porcelain
Pollution Level (IEC 60815-2007)
a up to e
M16, M20, 3/4”
Fuse Cutout
Rated Voltage
Nominal Current
Basic Insulation Level (BIL)
End Fittings
Clevis/Tongue - Clamp top/Ball
Fuse Holder
15 up to 38KV
300A
110 up to 170KV
Rated Voltage
Nominal Current
Nominal Interrupting (asymmetrical)
15 up to 38kV
100 or 200A
5 up to 16kA RMS
DISTRIBUTION
Surge-Arresters (Internal Use)
Rated Voltage
Nominal Current
Discharge class (DLT IEC 60099-4)
Phase Connection
3 up to 36 kV
10kA
1
insulated cable
16 mm² x 600 mm
* Others models on request
High Voltage Insulators
Transmission Line Arresters
Classification
(IEC 60099-4 / NBR 16050)
SL / CLASS 2
Rated Voltage
6 up to 245kV
12 up to 336kV
10 kA
10 kA
up to 40kA
up to 65kA
5,5kJ/kV of Uc
8,7kJ/kV of Uc
1,4 C
1,6 C
up to 1.500N.m
up to 3.500N.m
Short Circuit Current
Repetitive charge transference (Qrs)
Cantilever strength (SSL)
69 to 750kV
600 to 1000kV
AC
DC
Specified mechanical load (SML)
80 to 300kN
160 to 300kN
Pollution level (IEC 60815-2007)
a up to e
a up to e
Socket, Ball, Y Clevis and Eye
Socket, Ball
Rated voltage
System
Nominal Discharge Current
Energy absorption capacity
SM / CLASS 3
End fittings
*Disconnector device on request
Station Class Surge Arresters
Classification (IEC 60099-4 / NBR
16050)
SL / CLASS 2
Rated Voltage
6 up to 144kV 12 up to 245kV
Nominal Discharge Current
Short Circuit Current
TRANSMISSION
Line Post Insulators
Energy absorption capacity
Repetitive charge transference (Qrs)
Cantilever strength (SSL)
SM / CLASS 3
10 kA
10 kA
up to 40kA
up to 65kA
5,5kJ/kV of Uc
8,7kJ/kV of Uc
1,4 C
1,6 C
34 up to 230kV
Rated Voltage
up to 20kN
Specified Cantilever Load (SCL)
Line Terminals
Clamp Top or Drop tongue
*Others models on request
up to 2.700N.m up to 5.525N.m
*Discharge counter on request
Varistors
Rated voltages 3kV, 4kV, 5kV and 6kV (5kA and 10kA);
Standards NBR16050, IEC60099-4 and ANSI / IEEE C62.11;
IEC - DM and DH (distribution);
IEC - SL and SM (intermediate, station and TLA).
*More information on request
Surge Counter
Ciclometer
Minimum Count Current (wave 8/20µs)
Meter Scale (non linear)
Terminals for cables
6 digits
100 A
0 to 5 mA Peak / (√2)
up to 400MCM
* Others models on request
sales@balestro.com
balestro
www.balestro.com.br
+55 19 3814-9000
Av. Geraldo Potyguara Silveira Franco, 298
Mogi Mirim - SP - Brasil
balestroindustria
balestro.industria
+55 19 98149-3708
Precisely Right.
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