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Danotherm Electric A/S
Naesbyvej 20
2610 Roedovre
Denmark

tel:  +45 3673 2222
fax: +45 3673 2223

info@danotherm.dk

cvr. 1012 6061

 

 

α ALPHA - Aluminum Housed Brake Resistors 

     

ALUMINIUM HOUSED COMPACT BRAKE RESISTORS

These resistors are insulated and can easily be mounted in compact constructions. They are specially constructed for high pulse loads compared to the average load. The nominal load can be improved by forced air cooling or by mounting the resistors on a heat sink.

The resistor elements are wirewound on mica support sheets. Lower ohmic values are however made with helix wound elements mounted in a ceramic support part. The outer housing is an aluminium profile insulated with micanite sheets on all inner surfaces. The resistor elements are fixed symmetrical in the profile by the mica construction. This ensures a symmetric expansion of the resistors and a maximum stability to high load impulses. The aluminium profile with the fixed resistor element is filled with quarts sand.  This ensures a minimum change of the resistor surface temperature even if the resistor element reaches its maximum temperature during a pulse load. If higher protection classes are required please use our CCR, CBR, CBS, CBT or CMQ resistors. The highest protection class is IP65 / Type 4X, and the power range is up to 14.9 kW

Danotherm offers THERMAL SIMULATION to customers ensuring the right first choice of components

 
Bi-Alpha

Bi-Alpha Compact power resistor

nominal load: steady state 45W – 175W
Pulse load:
40s/120s:. . . . . . . . . . . . . . . 75W - 460W
10s/120s:. . . . . . . . . . . . . . .140W - 760W
5s/120s: . . . . . . . . . . . . . . 500W - 2.5kW
1s/120s: . . . . . . . . . . . . . . 950W - 4.6kW

 
CCH

Flat-Pack CCH
Nominal load: steady state 100W -  570W 
Pulse Load:    40s/120s:    300W - 1700W
                     10s/120s:   1000W - 5.7kW
                      5s/120s:  1.8 kW - 10.2kW
                      1s/120s:  2.0kW -  11.4kW
 .

IP50 - IP65, Silicone free
Best model for mounting on Heat Sinks

 
CDH

Flat-Pack CDH
Nominal load: steady state 110W -  205W 
Pulse Load:    40s/120s:     330W - 615W
                     10s/120s:    1.3kW - 2.5kW
                      5s/120s:      2.5W - 4.9kW
                      1s/120s:     4.0kW - 8.0kW

 
CAH/CAV

Nominal load: steady state  70W - 220W 
Pulse Load:   

 40s/120s:     170W - 660W
 10s/120s:     320W - 2.4kW
   5s/120s:     410W - 4kW
   1s/120s:       1kW - 16 kW

 
CAR

CAR-The smallest large surface profile
Nominal load: 
Cable Conn; Steady state:  115W - 410W 
Conn. Box;   Steady state: 105W - 310W
Pulse Load, Cable connestions
                     40s/120s:     180W - 1.1kW
                     10s/120s:    330W - 2.7kW
                      5s/120s:     420W - 4.4kW
                      1s/120s:      1kW -  18 kW

 . (Pending)

 
ALPHA DIN Rail mounting

Small resistor types from the CAR, CBR and CCR lines can be mounted easily on DIN Rails.

Resistors mounted this way can be used as Dehumidifier Elements

 
CBH CBV CBR

CBH / CBV

Nominal load: steady state 110W - 330W 
Pulse Load:    40s/120s:    300W - 1000W
                     10s/120s:    900W - 4.3kW
                      5s/120s:   1400W - 8.5kW
                      1s/120s:      5kW - 34kW
.

 

CBR-The medium sized large surface profile
Nominal load: 
Cable Conn; Steady state: 311W - 1700W
Conn. Box;  Steady state: 280W - 1290W
Pulse Load, Cable connestions
                     40s/120s:     900W - 5.2kW
                     10s/120s:     1.8kW - 14.3kW
                      5s/120s:      2.7kW - 23.4kW
                      1s/120s:     10.2kW -  73.1kW

 . 
IP00, IP20, IP50, IP65; Silicone free

 
CBHK/CBVK

The CBHK/CBVK has been designed with increased insulation meeting the demands for 1000VAC/1440VDC. 

 
CCR

CCR-The original, medium sized large surface profile
Nominal load: 
Cable Conn; Steady State: 185W -1045W 
Conn. Box;   Steady State: 140W - 790W
Pulse Load, Cable Connestions
                     40s/120s:     550W - 4.5kW
                     10s/120s:     1.2kW - 11kW
                      5s/120s:      2.5kW - 14kW
                      1s/120s:      4.5kW - 43kW

 . 
IP20, IP50, IP65; silicone free.

 
HVB

HVB70 high pulse, high voltage style aluminium housed resistors.

Medium to high power crowbar resistor, 300 – 1150 kJ

HVB70.400.2      570kJ

HVB70.400.4      1100kJ

HVB70.400.6      1700kJ

HVB70.400.8      2200kJ

IP65, dielectric strength 15KVrms@50Hz for 1 minute

 

 
CBT

CBT- Powerful large surface profile
Nominal load: 
Cable Conn; Steady State: 455W - 4070W
Conn. Box; single housing:
                  Steady State: 410W - 3695W
Connector box; two housings:
                 Steady State: 2200W - 6900W
Pulse Load, Cable connections, one housing
                    40s/120s:   1.3kW - 13.8kW
                    10s/120s:   3.5kW - 55kW
                     5s/120s:    6.0kW - 111kW
                     1s/120s:     24kW - 510kW

 .
IP20, IP50, IP65; Silicone free

 
CBS

CBS has the same resistor element as the CBT but more compact mechanical outline dimensions.  

CBS is optimized for single pulse load applications (i.e. one - two / hour) like

  • LVRT (Low Voltage Ride Through) or FRT (Fault Ride Through) Resistors, for Wind Turbines
  • Emergency stop applications
  • Pre-Charge of transformers and Capacitor Banks

Available as single profile units as well as multiple profile modules, standard or customer specified.

Power range single profile:

Steady state: 410W – 3600W

Single pulse (one per hour):

          40s:                   3.4 kW –  55 kW
          10s:                   8.2 kW – 142 kW
            5s:                    10 kW – 230 kW
            1s:                    32 kW – 728 kW

IP20, IP50, IP65; “Silicone Free"

 
CMQ

CMQ is one of the largest Pulse Load Resistor in the Alpha Family. The CMQ is optimized for high single pulse loads (i.e. one or two / hour) but capable to handle about 40% more power than CBS types and still maintaining a low surface temperature. Applications are

  • LVRT (Low Voltage Ride Through) or FRT (Fault Ride Through) Resistors, for Wind Turbines
  • Emergency stop applications
  • Pre-Charge of transformers and Capacitor Banks

Available as single profile units as well as multiple profile modules, standard or customer specified.

Power range single profile:

Steady state: 725W – 4450W

Single pulse (one per hour):

          40s:       2.3 kW – 15 kW
          10s:       9.2 kW – 62 kW
            5s:     17.3 kW – 125 kW
            1s:     53.7 kW – 620 kW

 IP20, IP50, IP65; “Silicone Free”

 
CVS

CVS is the largest Pulse Load Resistor in the Alpha Family. The CVS is optimized for high single pulse loads (i.e. one or two / hour) but capable to handle about 30% more power than CMQ types and still maintaining a low surface temperature. Applications are

  • LVRT (Low Voltage Ride Through) or FRT (Fault Ride Through) Resistors, for Wind Turbines
  • Emergency stop applications
  • Pre-Charge of transformers and Capacitor Banks

Available as single profile units as well as multiple profile modules, standard or customer specified.

Power range single profile:

Steady state: 1575W – 4350W

Single pulse (one per hour):

          40s:       23 kW – 110 kW
          10s:       62 kW – 330 kW
            5s:     110 kW – 620 kW
            1s:     500 kW – 3000 kW

 IP20, IP50, IP65; “Silicone Free”

 
HVBS

HVBS - High voltage, large surface profile
Nominal load:
Cable Conn; Steady State: 850W - 3500W
Conn. Box; single-case housing:
                  Steady State: 650W - 2650W
Connector box; double-case housing:
                 Steady State: 1500W - 6000W
Pulse Load, Cable connestions, single-case housing
                    40s/120s:   2.5kW - 12kW
                    20s/120s:   4.4kW - 23kW
                    10s/120s:   7.6kW - 46kW
                     5s/120s:     13kW - 93kW
                     1s/120s:     42kW - 385kW

 
CBW

The new type of Water Cooled Brake Resistor combining the advantage of water cooling with the high pulse load ability of the traditional aluminium housed Alpha resistors.

 
OEM-ALPHA

Some examples of OEM solutions and modifications of standard products within the Alpha Range are shown here.

 
 
 
 

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