Maximum Input Current The instantaneous maximum output of SERVOPACK is approximately 3 times of the rated output for maximum for 3 seconds. Accordingly, select a molded-case circuit breaker whose breaking time is 5 seconds or more at 300% of SERVOPACK rated current. The general-purpose low-speed acting molded-case circuit breakers are applicable. The power supply capacity per SERVOPACK when using a servomotor is described in 2.5.2 Molded-case Circuit Breaker and Fuse Capacity. Select a molded-case circuit breaker with the capacity larger than the effective load current (when using more than multiple SERVOPACK) calculated from the total power supply capacity. The consumption of other controllers must be considered when selecting a molded-case circuit breaker (2) Inrush Current Refer to 2.5.2 Molded-case Circuit Breaker and Fuse Capacity for SERVOPACK inrush current. The allowable inrush current for a low-speed acting molded-case circuit breaker is approximately 10 times of the rated current for 0.02 seconds. When turning ON multiple SERVOPACK simultaneously, select a molded-case circuit breaker with the allowable current for 20 ms larger than the total inrush current shown in 2.5.2 Molded-case Circuit Breaker and Fuse Capacity.
Circuit breaker refers to the switching device that can close, carry and disconnect the current under normal circuit conditions, and can close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high-voltage and low-voltage boundaries is relatively vague. Generally, those above 3KV are called high-voltage appliances. The circuit breaker can be used to distribute electric energy, start the asynchronous motor infrequently, and protect the power line and motor. When they have serious overload, short circuit, undervoltage and other faults, it can automatically cut off the circuit. Its function is equivalent to the combination of fuse switch and over and under heating relay. Moreover, it is generally not necessary to change the parts after breaking the fault current. At present, it has been widely used. Power distribution is an extremely important link in the generation, transmission and use of electricity. The distribution system includes transformers and various high and low voltage electrical equipment, and the low voltage circuit breaker is an electrical appliance with large amount and wide range of use. working principle The circuit breaker is generally composed of contact system, arc extinguishing system, operating mechanism, release, shell, etc. In case of short circuit, the magnetic field generated by large current (generally 10 to 12 times) overcomes the reaction spring, the release pulls the operating mechanism to act, and the switch trips instantaneously. In case of overload, the current increases, the calorific value intensifies, and the bimetallic sheet deforms to a certain extent to promote the action of the mechanism (the greater the current, the shorter the action time).
ZW32-24 type outdoor pole-mounted HV vacuum CB (hereinafter referred to as CB) is rated voltage24kV, 50Hz three-phase AC outdoor power distribution equipment used for power distribution network to break and close load current, over-load current and short-circuit current in electric systems. It is used in substation and industrial & mining enterprise power distribution system for protection and control, better fits countryside power grid and frequent operation places, especially for the retrofit of urban power network and countryside power network. Characteristic: The CB applies three-phase pole-type structure. It has characteristics of stable closing/breaking property, no fire or explosion danger, maintenance-free, small dimension, small weight, long service life, etc. The CB is hermetical sealed, and is moisture-resistant, anti-condensation. It is especially suitable for application at severe cold and damp areas. Three-phase pillar and current transformer apply imported outdoor epoxy resin solid insulation materials. It is high/low temperature resistant, UV-resistant and anti-ageing. The operating mechanism is miniature spring operating mechanism with low breaking/closing energy consumption. The driving of it applies straight transmission with little components and high reliability. The operating mechanism is enclosed in a cabinet, and that makes it rust-resistant and more reliable.
CW1 series intelligent universal circuit breaker (hereinafter referred to as circuit breaker), Apply to 50Hz AC, Rated voltage to 660V (690V) and below, in the distribution network with rated current of 200A ~6300A, circuit break used to distribute electric energy and protect circuit and power equipment from overload, undervoltage, shortcircuit, single-phase grounding and other faults has intelligent protection function. Selective protection is accurate, it can improve the reliability of power supply, avoid unnecessary power failure, and has an open communication interface. It can carryout "four remote" to meet the requirements of the control center and the automation system. The circuit breaker has a pulse withstand voltage of 8000V at an altitude of 2000 meters (the maximum withstand voltage is not more than 12000V according to the standard for different altitudes). The circuit breaker can be used as an isolator without intelligent controller and sensor, and is marked as -*The circuit breaker conforms to GB14048.2 "Low Voltage Switchgear and Control Equipment Low Voltage Circuit Breaker" and EC60947-2 "Low Voltage Switchgear and Control Equipment Circuit Breaker" and other standards. Normal Working and Installation Conditions Ambient air temperature The upper limit value shall not exceed +40 �ºC, the lower limit value shall not be lower than-5 �ºC, and the 24-hour average value shall not exceed +30 C; Note: For working conditions with the lower limit value of-10 C or-25 C, the user should declare it with the company. For working conditions where the upper limit value exceeds + 40T: or the lower limit value is lower than-10 C or-25 C, the user shall negotiate with the company; The altitude of the installation site shall not exceed 2000m. Atmospheric conditions The atmospheric relative humidity shall not exceed 50% when the ambient air is + 40 C, and may have higher relative humidity at lower temperatures. The monthly average maximum relative humidity in the wettest month is 90%, and the average minimum temperature in that month is + 25 C. Considering that the condensation on the product surface due to temperature change exceeds the specified requirements, the company shall be consulted. Protection level: IP30 Pollution level: III Use category: category B or category A Installation category Circuit breakers with rated working voltage of 660V (690V) and below, undervoltage releases and primary coils of power transformers are used for installation of Class IV; The installation category of auxiliary circuits and control circuits is III; The circuit breaker shall be installed according to the requirements of this specification. The vertical inclination of the circuit breaker shall not exceed 5 degrees (the inclination of the mine circuit breaker shall not exceed 15 degrees).
1.With the voltage of 40.5kV is three-phase AC, 50/60 Hz indoor power distribution equipment. 2.It is used for switchgear KYN61-40.5(Z) 3.It is accordance with GB1984 AC HV vacuum circuit breaker standard. 4.It effectively reduces the dimensions of VCB, the overall arrangement is reasonable and simple,with aesthetic appearance. 5.It has high reliable with characteristics of long life and easy maintenance and free-maintenance for operating mechanism. 6.Meet the Five Preventions function.
1.Use spring energy storage. 2.Operating by two ways: manual or electric operation 3.The characteristics is accordance with GB1984-2003 AC High Voltage Circuit Breakers, JB3855-96 3.6~40.5kV indoor AC HV vacuum circuit breaker, relevant regulations of IEC62271-100 standard and the technical requirements of this product. 4.Use modular type operating mechanism and embedded pole The mechanical life is M2 and electrical life is E2
CW1 series intelligent universal circuit breaker (hereinafter referred to as circuit breaker), Apply to 50Hz AC, Rated voltage to 660V (690V) and below, in the distribution network with rated current of 200A ~6300A, circuit break used to distribute electric energy and protect circuit and power equipment from overload, undervoltage, shortcircuit, single-phase grounding and other faults has intelligent protection function. Selective protection is accurate, it can improve the reliability of power supply, avoid unnecessary power failure, and has an open communication interface. It can carryout "four remote" to meet the requirements of the control center and the automation system. The circuit breaker has a pulse withstand voltage of 8000V at an altitude of 2000 meters (the maximum withstand voltage is not more than 12000V according to the standard for different altitudes). The circuit breaker can be used as an isolator without intelligent controller and sensor, and is marked as -*The circuit breaker conforms to GB14048.2 "Low Voltage Switchgear and Control Equipment Low Voltage Circuit Breaker" and EC60947-2 "Low Voltage Switchgear and Control Equipment Circuit Breaker" and other standards. Normal Working and Installation Conditions Ambient air temperature The upper limit value shall not exceed +40 �ºC, the lower limit value shall not be lower than-5 �ºC, and the 24-hour average value shall not exceed +30 C; Note: For working conditions with the lower limit value of-10 C or-25 C, the user should declare it with the company. For working conditions where the upper limit value exceeds + 40T: or the lower limit value is lower than-10 C or-25 C, the user shall negotiate with the company; The altitude of the installation site shall not exceed 2000m. Atmospheric conditions The atmospheric relative humidity shall not exceed 50% when the ambient air is + 40 C, and may have higher relative humidity at lower temperatures. The monthly average maximum relative humidity in the wettest month is 90%, and the average minimum temperature in that month is + 25 �ºC. Considering that the condensation on the product surface due to temperature change exceeds the specified requirements, the company shall be consulted. Protection level: IP30 Pollution level: III Use category: category B or category A Installation category Circuit breakers with rated working voltage of 660V (690V) and below, undervoltage releases and primary coils of power transformers are used for installation of Class IV; The installation category of auxiliary circuits and control circuits is III; The circuit breaker shall be installed according to the requirements of this specification. The vertical inclination of the circuit breaker shall not exceed 5 degrees (the inclination of the mine circuit breaker shall not exceed 15 degrees).
VS1-12 type indoor high voltage vacuum circuit breaker is the indoor switch device for three-phase AC 50Hz, rated voltage 12kA power system, can be used for electrical equipment control and protection in power plant, substation and industrial and mining enterprises, and is suitable for frequent operation place, can be installed in the KYN28-12 type and other armored cabinet, can also be installed on the fixed cabinet or gas insulated cabinet. Design feature VS1-12kV indoor medium voltage sealed vacuum circuit breaker (12kV, .4000A, .50kA) VS1 indoor medium voltage sealed vacuum circuit breaker with maintenance free sealed vacuum pole, can equipped with modular spring assembling actuator and permanent magnetic actuator; has the features of reliable performance, long mechanical life, maintenance free, small mechanical movement, has the advantages of simple structure, good process performance, but also can be applied to all kinds of bad working environment. VS1 circuit breaker pole adapts the solid insulation sealing technology, seal the vacuum interrupter and primary main galvanic circle and other parts into strong insulation, high mechanical strength pole with epoxy resin, avoid the influence of adverse operating environment on the primary circuit external insulation, realizes completely maintenance free. VS1 circuit breaker adapt ultra low resistance type vacuum interrupter, meet the VCP circuit breaker requirements on the temperature rise at big current operation situation and reduces the power losses. VS1 circuit breaker adapt optimization and modular spring operating mechanism, simple structure, stable performance, convenient maintenance; modular production process is good, easy standardization production, short delivery cycle.
ZW32-24 type outdoor pole-mounted HV vacuum CB (hereinafter referred to as CB) is rated voltage24kV, 50Hz three-phase AC outdoor power distribution equipment used for power distribution network to break and close load current, over-load current and short-circuit current in electric systems. It is used in substation and industrial & mining enterprise power distribution system for protection and control, better fits countryside power grid and frequent operation places, especially for the retrofit of urban power network and countryside power network. Characteristic: The CB applies three-phase pole-type structure. It has characteristics of stable closing/breaking property, no fire or explosion danger, maintenance-free, small dimension, small weight, long service life, etc. The CB is hermetical sealed, and is moisture-resistant, anti-condensation. It is especially suitable for application at severe cold and damp areas. Three-phase pillar and current transformer apply imported outdoor epoxy resin solid insulation materials. It is high/low temperature resistant, UV-resistant and anti-ageing. The operating mechanism is miniature spring operating mechanism with low breaking/closing energy consumption. The driving of it applies straight transmission with little components and high reliability. The operating mechanism is enclosed in a cabinet, and that makes it rust-resistant and more reliable.
moulded case circuit breaker with rated insulation voltage 800V, applied in the power system of AC50(60)Hz, rated voltage 690V and below, rated current 1250A and below as the transfer not frequently. The circuit breaker has the protection devices of over load, short circuit and under voltage ,it can protect the circuit and power equipment from broken. The mccb can be sorted to C type (basic),L type (standard),M type (high breaking), H type(higher breaking) according to its rated limit short circuit breaking capacity. The mccb has the features small volume, breaking capacity high, electric arcing short ,anti-vibration. It is the ideal product for application in land and ship. The installation can be vertical or level and the standard conforms to IEC60947-2 and GB14048.2
Nimrof TARZ27S Electronic Fault Locator is designed to complement conventional test instruments in the debug and troubleshooting process. Nimrof TARZ27S is suited for todays varied signal circuit cards where Analog and Digital are mixed together. It provides to find faulty component on the electronic board in a short time by using power-off test method. Nimrof TARZ27S Component Tester allows more than 100 various voltage combinations, it operates by applying a low current AC signal to two points of electronic equipment. The current flow appear a vertical signature deflection, while the applied voltage appear a horizontal deflection. Together they form a unique V/A signature that represents the overall health of the device under test. Analyzing the signature can quickly determine whether the component is good, bad, or marginal.
Circuit breaker
masterpact NT/NW 33036
CDP-50 magnetic circuit protectors provide low-cost power switching, reliable circuit protection and accurate circuit control for equipment in the international marketplace. CDP-50 models are for those applications where the units inherent attributes are desired, but compliance with the various standards is not required. CDP-50 models have been tested and approved in accordance with UL 1077 requirements for UL recognition. CDP-50 model has achieved two new enhancements, including a single pole, 50 amp rating with TV approval (IEC 60934).
Well known for their proven reliability, CDP-30 Series hydraulic magnetic circuit breakers are compact, temperature stable and designed for precision operation in OEM markets requiring general purpose as well as full load amp applications. When front panel operation and aesthetics demand a clean, contemporary design, the visi-rocker or paddle actuators are ideally suitable. A sealed toggle actuator style is also available and ideal for harsh environment applications requiring additional sealing protection. Optional rocker- guard and pushto-reset bezels, which help prevent inadvertent actuation, are also available.1-4 poles; ratings from 0.5 to 30 amps, up to 240VAC or 80VDC; UL Recognized, UL1077, TUV & CSA
CVP-TH Series magnetic circuit protectors provide low-cost power switching, reliable circuit protection and accurate circuit control for equipment in the international marketplace. CVP-TH Series meet IEC spacing requirements . In addition, they are UL Recognized as supplementary protectors per UL 1077, TUV Approved (EN60934), CCC Approved and CE Compliant. One important feature of this protector line is a trip free action, which means the circuit will trip in the presence of an overload even though the handle is held in the ON position. The delay mechanism senses the fault and the contacts open.
The CVP-BM Series hydraulic-magnetic circuit breaker provides maximum and dependable circuit protection, while providing a cost effective, compact solution. By meeting the IEC spacing requirements, the CVP-BM Series is the ideal choice for international market applications. It also features a trip-free mechanism, which will open the contacts when a fault condition occurs, even if the handle is held in the ON position.
The CVP-SM Series is a low cost, miniature, hydraulic-magnetic circuit breaker which features a compact, space saving design, front panel snap-in mounting and a vertically mounted parallel pole configuration. It features various styling options to maximize your design flexibility. Choices include rocker, illuminated rocker, paddle and baton style handle actuators, push-to-reset and push-pull pushbutton actuators, as well as Visi-Rocker two color actuators. Our exclusive Rockerguard bezel helps prevent inadvertent actuation and a wiping contact mechanism assures long-term reliability.Insulation Resistance 100M at 500V DC,Dielectric Strength:1500V,50/60Hz between terminals for eletrical 50/60Hz, Temperature Operation -40 to +85 Elevational 3000m.
Specifications Condition New Power Source Electric Features Durable, Easy To Fir, High Performance, Stable Performance, Water Proof Warranty 3years Applications Industrial Puncture Voltage 100-200V, 300-400V, 500-600V, 700-800V MOCB, ACB, SF6 CB, Vacuum CB, High Voltage Circuit Breakers
1. Bit Breakers The Bit Breakers are suitable to make up or break out the drilling bit during the oil well drilling and repairing operations. The Users should be chosen the bit breaker according to the size and model of the drilling bit. Feature:Improve support and retention Advantage:Manage the magnitude cutter loading and bit torque Benefit:Improved bit durability and directional responsiveness Advantage:Higher nozzle counts and/or fixed ports to best serve cleaning,cooling and cuttings evacuation requirements with available hydraulic flows.Allow for higher flow rates with minimal increase in pump pressure. 2. Detailed introduction to Bit breaker 1) Bit breaker is mainly used to screw on or off a rock bit to the bottom of drill string. 2) It can also prevent the rock bit from dropping into well hole. 3) The price of it is cheap and the use of it is safety and reliable. 4) It is easy to operate. First, the bit breaker is placed on well hole and then put the rock bit onto it. Turn it to screw on or off the bit by turnplate.
