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Aluminum Housed Resistor -
- Suitable for industrial machinery and equipment
- Durable and can withstand stronger vibration
- Low Inductive type is available
- Low temperature coefficient and better heat convection
- Rated Power Range : 5W - 500W
Good Price and Prompt Delivery : within 4 - 8days worldwide !
We even support :
- small quantity order for engineering samples for testing.
- Credit Card online payment
- local Currency
Resistors detail size are listed in our website : http://www.mf-powerresistor.com
For more details, please e-mail to sales@mf-powerresistor.com
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Specifications:
Protected P2 Capacitor: UL 10000 A.F.C.
1. Operating Temperature : -25°C ~ 85 °C
2. Capacitance Range : 1.0 ~ 120.0 µF
3. Capacitance Tolerance : ± 5%.
4. Rated Working Voltage Range : 250 ~ 500 Vac 50/60 Hz
5. Withstand Voltage Test : ( A ) Dielectric strength test ( TV ):
Rated Voltage x 175 % for 1-5 Sec ( B ) Between Terminals and Case( TC ): Rated Voltage x 2 1000V for one minute, at 25 °C
6. Dissipation Factor ( DF ): 0.5 % MAX. When measured at 1 KHZ, 25 °C
7. Insulation Resistance ( IR ): ( A ) Between Terminals: Above 1000 F,at in 100VDC in 25 °C ( B ) Between Terminals and Case: Above 10000m, at 500vdc in 25 °C
8. Pull Test : Will sustain 2 Kg steady pull in the direction of lead egress and 1 Kg steady pull atany 90 degree angle for 60 seconds.
After test, capacitor shall show no evidence of damage and pass all electrical requirements
9. Life Test : ( on-off ) 100,000 cycle ± 5000 times on 2 seconds off 2 seconds at operating temperatures with rated voltage. After the test,the capacitance drift 5 %, dissipation factor 0.5 %, insulation resistance 50%.
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Whenever it is necessary to dissipate power peaks within an electromechanical process in a hot environment, braking resistors come into their own. In certain cases, braking resistors absorb the energy of a motor drive, thereby braking the motor. Each and every resistor designed by JOVYATLAS is suitable for use as a braking resistor.
In general, resistors from our Alpha series or our PT 1000 are used for smaller drives, while our HWS steel-grid resistors or our EN series are suitable for larger drives. JOVYATLAS has a long history of manufacturing braking resistors.
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Aluminum Housed Resistor
Rated Power : 40W to 2,000W
Internal wire wound resistor is protected by external Aluminum Case from external mechanical force, humidity, dusty and most importance of all, heat can be convected away very well. The external Aluminum enclosure act as heat sink.
Suitable for industrial machinery and equipment, electric power distribution.
It is durable and can withstand stronger vibration
Low temperature coefficient and better heat convection.
Good Price and Prompt Delivery : within 4 - 8days worldwide !
We even support small quantity order for engineering samples for testing.
Resistors detail size are listed in our website : http://www.mf-powerresistor.com
For more details, please e-mail to sales@mf-powerresistor.com
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Typical benefits include, easy installation, compact construction, suitable for use with any frequency drive and requires little floor space.
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The stainless steel Starting and Braking resistors are used for a wide range of applications like cranes, pumps, big fans, compressors and generally anywhere is necessary to control a large electric motor during the starting and stopping phases.
Installations in harsh environments like steelworks, harbors or oil platforms are feasible and can be implemented on request without any specific limitation.
The most common resistors typologies of this products family are :
- Rotor starting/braking resistor
- Stator starting/braking resistor
- Dynamic Braking resistor (DBR)
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Fixed correction devices
Automatic correction devices
Automatic correction devices of reactive power by filtering higher harmonics
Fixed correction devices by filtering higher harmonics
Electronic reactive power factor regulators
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Capacitors banks for reactive power compensation from 5 to 900 KVar in a single metallic cover.
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superior electrical performance / long life · terminated using low resistance copper buss strips · designed for various mounting configurations · banked to any capacitance value · from 10 to 20,000 volts · current up to 1000 amps RMS
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Applications
To be mounted into electric normalized enclosures.
In electric networks systems without harmonic distortion.
Characteristics
To install with screw M8
NH hrc fuses
Cu billets to connection electric main circuit wires
Terminals connector to supplied circuit
Special three-phase contactors with domping resistors to limit capacitor's inrush current
"CRM" capacitors with discharge resistors
Standards : CEI 831,1/2 IS:13340/41
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The heating element is printed on a thin and flexible support and can therefore be placed in very narrow spaces, also adapting to curved surfaces.
Very easy fitting.
Numerous shapes are possible, including holes and slots for applications where required.
The desired temperature is reached quickly and with low energy consumption.
Differentiated heat generation can be obtained.
The back of the resistor may be adhesive.
Various types of electrical insulation are possible according to the place where the resistor has to operate.
They can be produced at any voltage, including low.
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Filter resistors and also damping resistors from JOVYATLAS are used to dampen capacitors and reactors, and in reactive-power compensation equipment. Filter resistors manufactured by JOVYATLAS have continuous loading capability and high-voltage strength.
We are happy at all times to prepare a technically expert, cost-optimised quotation to meet your requirements. Ask us – our skilled team of contacts is ready to assist.
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The Harmonic Filter resistors are used to eliminate the dangerous distortions (harmonics) generated inside the network due to connection of more and more number of electronic power converters.
The main problems caused by harmonics, that are sinusoidal currents with different frequencies and amplitudes compared with the rated 50/60 Hz network currents, are :
- increment of losses on the line
- malfunctioning of the test equipments
- interferences with radio and phone systems
- resonances
- high currents at neutral point
These resistors , used together with reactors and capacitors, help to reduce and filter the harmonics.
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JOVYATLAS has developed in recent years into a leading manufacturer of neutral grounding resistors. As a result of continuous dialogue with our customers and a large number of completed projects we have defined complete ranges of resistors within this sector. Our grounding resistors are manufactured using state of the art production techniques. The high quality is guaranteed by our quality management department to DIN EN ISO 9001:2000. JOVYATLAS supplies grounding resistors in voltage ranges from 1 kV to 72 kV. Also available on request with the corresponding load/isolator devices
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The NEUTRAL GROUNDING RESISTORS are generally employed in the LV and MV distribution networks to protect power transformers and generators from damaging currents in the event of earth fault.
This protection system represents the best choice in terms of fast response to localize the fault and consequently to reduce and prevent the overheating and mechanical stress on the conductors.
By inserting the N.G.R with appropriate characteristics between the neutral point of the transformer and the ground it is possible to limit the ground fault current for a short time to allow a quick localization of the fault but, at the same time, it does not damage the equipments.
Many optional features / equipments can be associated with the Neutral Grounding Resistors :
- Terminal box for I/O cables
- Terminal box for additional devices
- Zigzag grounding transformer, dry type, air cooled
- Three phase transformer Wye / Delta type
- Current and/or Voltage transformers
- Load-break or load-less load switches
- Vacuum contactors
- Surge arrestor
- Space heater
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Multi-Function Ground Resistance Testers
The AEMC® Multi-Function Ground Resistance Tester performs grounding resistance, earth coupling measurement, soil resistivity and bonding tests. This direct reading tester measures from 0.01 to 99,000Ω, and is auto-ranging, automatically seeking out the optimum measurement range test current and test frequency.
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Hubbell Type SSR Power resistors from 1.3 amps through 101 amps are available, from unassembled to completely assembled in frames with covers. Standard assemblies are pre-engineered for primary or secondary resistance, and are used in typical applications such as motor starting or dynamic braking. Construction elements are stainless steel around a porcelain insulator, manufactured for endurance and reliability.
Heavy duty Types K1 and HHC resistors also utilize continuous stainless steel elements, with no weld joints where hot spots could develop. These resistors are available in ranges from 38 amps to 695 amps.
Hubbell Neutral Grounding Resistors limit the maximum fault current to a value which will not damage equipment, yet allow sufficient fault current for protective relays to clear the fault, conforming to IEEE Standard 32-1972
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Applications of these capacitors include Energy Storage, DC Filter, Pulse and other custom designs.
Features and Benefits
Cost effective, reliable All Film and Metallized Film dielectric system
Designed for specific application for cost and size benefit
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Technical Data
1. Dry capacitors (epoxy, oil-free)
2. Plastic case (corrosion-free)
3. Voltage rating : 120V to 660V AC
4. Frequency : 50/60 Hz
5. Capacitance range: 1.0µF to 100.0µF
6. Capacitance : ± 5%
7. Temperature range : -25°C to 105°C max
8. Dissipation factor : 0.5% per one KHz
9. Approval : UL810.CUS and EIA-456.JIS-4908. and IEC
10. Plastic capacitors : models with leads or with terminals 6.35±0.1mm (quick connection; M 8 x 10mm)
11. Test voltage between terminals and containers : 3KV 60/50Hz for one minute
12. Test voltage : 1.75time RV, one minute
13. Pull test : Will sustain 2Kg steady pull in the direction of lead egress and 1Kg steady pull at any 90 degree angle for 60 seconds
After test, capacitor shall show no evidence of damage and pass all electrical requirements
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Lamp power factor capacitors are used for improvement the power factor on fluorescent, mercury, metalhallogen and sodium lamps.
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LIFASA's lighting capacitors, with its different series cover the most wide range of needs and solutions.
All them are produces under supervision of a highly strict Quality System in accordance to norm ISO 9002, certified by the British Standard institution (BSI) since year 1987.
They are auto-regenerative capacitors with dielectric polypropylene without impregnation, specially designed for compensation and lighting.
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For highly varied applications JOVYATLAS offers the following load banks:
1. SMART LOAD: This type series, with a power spectrum of 5 to 15 kW, has been specially developed for mobile use.
2. Mobile Loadbank ML 500: This mobile load bank was conceived as a result of continuous dialogue with our customers about their wishes. The ML 500 allows load tests and examinations wherever they are required. The built-in three-phase load system for power up to 500kW consists of steel-grid resistors.
3. Load banks up to 1 MW: JOVYATLAS has designed a range of load banks with a power spectrum 100-1000 kW. The PLM-series load resistor is adjustable to a resolution of 1kW by utilising a control box. Thanks to the use of special high-grade steels the load steps have a very low temperature coefficient, so that the adjusted load stays almost constant even if the resistor elements increase in temperature.
4. Load container CONPower up to 7.2 MW: Particularly for diesel engine and generator testing, the demand for high-performance load banks has risen sharply. Therefore JOVYATLAS has adapted developed the "CONPower" load range bank. This product line consists of standard commercial steel sea containers in which the load unit and the whole control unit are configured for controlling the load bank.
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Resistor Load Bank support power range : 1KW - 500KW
- Support both single and 3 phase resistors circuitry or any workable resistors circuitry that customer need for their application
- can handle very large current up to 1500A and high voltage requirement
- for Low Ohmic Resistance is needed, please tell the working Voltage and Duty Cycle. Different Voltage can cause different electrical current. And in turn different materials are needed to withstand the current and heat generated.
- Resistance, Current and Power Wattage can be adjusted according to application need
- low Inductive type is available
Our Load Bank can be customized according to your application need.
Options :
- Voltmeter, Ammeter and Wattage meter : digital / analog
- thermal protective device
- Cooling System - Cooling Fans and Water Cooling
- Power Switches / Contactor - with lamp indicator for the Load Bank control and Cooling Fan switching
- plastic wheels ( so that Cabinet can be moved around )
Prompt Delivery within 2-3 weeks worldwide delivery with Attractive Price!
There are more Resistance Load Bank photos in our website : http://www.mf-powerresistor.com
or e-mail to sales@mf-powerresistor.com
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A variable resistor load-bank with fixed stages connected in parallel and switched in, as required, with an adjustable stage for fine trimming. Designed for testing equipment under load.
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Welcome to Spohn Burkhardt
Our Products
Our production program includes a diverse range of controllers, control stations, resistors, starters, in addition to a broad spectrum of controls for all types of transport machinery, construction and shipping cranes.
Our comprehensive series production is customisable in many different ways according to specific needs.
Our Company
The firm was founded in 1920 by Karl Spohn and David Burkhardt and remains in family ownership.
Our highly motivated team strives to achieve maximum customer satisfaction starting with the first contact through to after-sales service.
Our recipe for success has remained consistent over the years – and effective:
flexibility in product development and reliability in production.
Quality standards
A high quality standard – and therefore the complete satisfaction of our clients is one of our most important aims.
This is confirmed by various certifications, e.g. DIN EN ISO 9001-2000, CCC as well as by national and international standards, IEC 947, EN 60947, CSA and UL
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The Load Resistors (load banks) are the most technically advanced, most reliable and cheapest way to perform load tests on electrical power sources and are used in a variety of applications such as:
- factory testing of engine diesel generator sets
- periodic tests of stand-by generator sets
- UPS testing
- Battery testing
- Factory testing of turbines
The Telema load banks are designed and tailored to the customer’s requirements to optimize, technically and economically, the performances.
Specifically, the resistors can have the following characteristics:
- Fixed / portable / containerized / silenced installation
- Voltage up to 36 KV
- Use of resistive materials with low temperature coefficient to guarantee a stable load during the tests
- Incremental load steps of variable sizes
- Load steps adjustable through local and remote control systems
- Forced cooling ventilation
- Overtemperatures protection systems
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Silicon Coated Wire Wound Power Resistor
- Low-Inductance type available
- Standard Rated Power : 10W ~ 20,000W
- Our Resistor can be customized to handle very large current up to hundreds Amperes.
- support very low ( milli ohm ) and high resistance range
- for Low Ohmic Resistor, please tell working Voltage and Duty Cycle. Different Voltage can cause different current. And in turn different raw materials and production process are needed to withstand the current and heat generated.
Good Price and Prompt Delivery : within 4 - 8days worldwide !
We even support :
- small quantity order for engineering samples for testing.
- Credit Card online payment
- local Currency
Resistors detail size are listed in our website : http://www.mf-powerresistor.com
For more details, please e-mail to sales@mf-powerresistor.com
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for power-factor correction of inductive consumers (transformers, electric motors, rectifiers) in industrial networks for voltages of up to 660 V
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Three-phase "CRT"
Self-healing polypropilene film dielectric (NO PCB)
Discharge resitences are included, also security terminal strip.
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Three-phase capacitors 50/60 Hz
Description
Varplus² modular capacitors are used to build capacitor banks for power factor correction on low voltage networks.
They allow by their different assembly combination to cover all the power ratings you could need, depending on the voltage, frequency and harmonic pollution level of the network.
Technical data Frequency:50 or 60Hz
Network voltage:230 à 690V
Rated voltage:280 à 690V
Capacitor rating power:2.5 to 20 kvar
Possibility of association with detuned reactors
detuned reactors tuning:2.7(135Hz), 3.8(190Hz), 4.3(215Hz)
Temperature class:class D (55°C)
Standards:CEI 60831 1/2, CSA 22-2 N°190, UL
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Resistors, Capacitors for power
