Liquid cooled resistors
Power resistors
- Danotherm
- / Power resistors
- / Liquid cooled
Salient features
- Power 6 - 23kW
- Overload factor 6-20xPn @ 5s
- Working voltage 1000VAC / 1400VDC
- Dielectric insulation voltage (50Hz, 1 min) 3500V
- Protection degree IP50 / IP54 / IP65
- Ohmic range 0R04 - 220R
Description
CBW resistors consist of a aluminium housing with liquid cooling channels integrated. Inside is the active resistor wire which is incapsulated with sand. CBW resistors combine very high overload capability with liquid cooling. They are ideally suited as high power brake resistors with medium average power. CBW resistors are also used as filter resistors.
Salient features
- Power 40 - 1300kW
- Overload factor 4xPn @ 5s
- Working voltage 1000VAC / 1400VDC
- Dielectric insulation voltage (50Hz, 1 min) 3500V
- Protection degree IP65 / IP66
- Cooling method water / water + glycol
Description
WHDN are Danotherms largest, high power resistors. The power ranges from 40-1450kW. They consist of a steel tank with resistor tube elements fitted. The tank is fully welded. Depending on the environmental conditions steel AISI304 or AISI316 is chosen. All WHDN resistors are customized. Water in- and outlet, size of electrical terminals and protection circuits define the design.
Salient features
- Power 6 - 100kW
- Overload factor 4xPn @ 5s
- Working voltage 1000VAC / 1400VDC
- Dielectric insulation voltage (50Hz, 1 min) 3500V
- Protection degree IP65 / IP66
- Cooling method water / water + glycol
Description
WHBS are water cooled, high power resistors. The power ranges from 6-100kW. They consist of a steel tank with resistor tube elements fitted. The tank is fully welded. Depending on the environmental conditions steel AISI304 or AISI316 is chosen. All WHBS resistors are customized. Water in- and outlet, size of electrical terminals and protection circuits define the design.
Salient features
- Power 50 - 200kW
- Overload factor 4xPn @ 5s
- Working voltage 1000VAC / 1400VDC
- Dielectric insulation voltage (50Hz, 1 min) 3500V
- Protection degree IP65 / IP66
- Cooling method water / water + glycol
Description
WHBSA are water cooled, high power resistors. The power ranges from 19-253kW. They consist of a steel tank with resistor tube elements fitted. The tank is fully welded.
This type of resistors is most suited as brake resistor for busses and trucks. For marine applications we recommend to use WHBS or WHDN series.
Salient features
- Power 6 - 23kW
- Overload factor 4xPn @ 5s
- Aluminium housing
- Working voltage 1000VAC / 1400VDC
- Dielectric insulation voltage (50Hz, 1 min) 3500V
- Protection degree IP00 / IP65
- Cooling method water / water + glycol
Description
WHB are water cooled, medium power resistors. The power ranges from 6-23kW. They consist of an aluminium housing with resistor tube elements fitted. It can be fitted with a terminal box or with M6 treaded rods. For marine applications we recommend to use WHBS (fully welded, stainless steel version).
Salient features
- High Voltage resistor
- Power 15 - 25kW
- Working voltage 4.7kVAC / 6.6kVDC
- Dielectric insulation voltage (50Hz, 1 min) 20kV
- Protection degree IP65
- Cooling method de-ionised water / de-ionised water + glycol
Description
WHHB resistors consist of a aluminium housing with inside the active resistor wire which is directly in contact with the cooling liquid. The cooling liquid must be de-ionised water. Glycol may be added as long as the conductivity of the liquid stays below 2 microS/cm. WHHB resistors are used in high voltage systems, mostly as filters.
