1. Before welding, it is necessary to check whether the welding equipment is defective, whether the grounding of the electrical equipment is reliable, and strictly abide by the "welder safety operation procedures" when welding.
2. Correct wires and busbars, and prohibit the use of handleless files.
3. When performing butt welding, a protective cover should be installed to avoid arc burns.
4. When performing graphite carbon precision arc welding, it is necessary to wear asbestos gloves.
5. When using the soldering iron, check whether the soldering iron is leaking. Do not approach flammable materials during use, and block the power supply immediately after use.
6. When the bus is used for argon arc welding, first check whether the argon arc welding equipment is complete, strictly abide by the safety operation procedures of the argon arc welding welder when welding, and wear the necessary protective equipment.
7. When argon arc welding is applied, the protective fence screen should be placed first, and others are forbidden to enter the welding scale.
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NH-Fuse Type Disconnector Instructions for Use
When switching on and off components, you should pay attention to the following:
–In accordance with VDE-0105-100, only operation by electrical professionals or persons with electrical knowledge is allowed (operation without electricity, closing, disconnecting, and replacing fuses ...).
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Wiener bearing repair technology
1. Comprehensive correction of bearings
The comprehensive correction of the bearing includes the comprehensive and strict correction process of the damaged bearing after cleaning, dismantling, inspection, roller table grinding or replacement of inner and outer rings, new rolling element manufacturing/original rolling element grinding, rolling element replacement, assembly, clearance adjustment and inspection and packaging.
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A detailed description of the Wiener comb busbar and connection terminals
The Wiener comb busbars and connection terminals are available with QUADRON®CrossLinkBreaker in size 000/00
Recommended installation: Wire entry at the lower end of the NH-fuse disconnector through the comb busbar.
In the installation position and ...
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Difference Between Fuse and Circuit Breaker – Vernal
The principle of the fuse is to use the current to flow through the conductor to heat the conductor, and the conductor is ablated after reaching the melting point of the conductor, so the electrical appliances and circuits used for circuit maintenance are not burned out. It is an accumulation of heat, so it is also able to complete overload maintenance. Once...
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Fuse selection method - Wiener busbar
1. Select the model of the fuse according to the circuit requirements and device conditions. Circuits with small capacity are semi-enclosed or enclosed without fillers; The selection of large short-circuit current has a packing closed type; Semiconductor component maintenance selection of quick fuses.
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There are several main ways to wire the busbar - Vernal
(1) Single bus. Single busbar, single bus segment, single bus plus bypass and single bus segment plus bypass.
(2) Tandem bus. Double busbar, double bus segment, double bus plus bypass and double bus plus bypass.
(3) Three busbars. Triple bus, triple bus section, triple bus section ...
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Wiener busway specification standard parameters
1. The standard scale of the bus duct
This specification regulates the terminology, skill requirements and test methods of the insulated bus trunk system (bus duct) and its plug-in feed box (hereinafter referred to as the feed box).
This specification specification applies to additional voltage AC to 660V...
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Advantages of common DC bus - Wiener
1. Energy saving: The energy fed back when the motor brakes can be used, so it is more energy-saving, especially for oilfield kowtow machines, cranes and other lifting equipment.
2. The power element of the equipment is high: because the motor can feed back energy, the reactive power loss is small, so the power of the equipment ...
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What is the role of the busbar in the distribution box
Busbar refers to a product made of copper and aluminum materials with high conductivity to transmit electrical energy and have the ability to gather and distribute electricity. The main conductor used by the power station or substation to transport electrical energy. In the power system, the busbar in the distribution box connects the various current-carrying branch circuits in the distribution unit, ...
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Structural characteristics of high-voltage busway - Vernal
If you understand the scope of application of the busway, you can see that the excellent effect of the busway has the upper hand, which has a lot to do with the structural features. Therefore, if you want to have more confidence with the bus duct, you still need to understand it from the structural characteristics. At a time when China's economy is developing rapidly, ...
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Introduction to Laminated Busbar System – Wiener
In the power system, the bus connects the various current-carrying branch circuits in the power distribution device together, and plays the role of collecting, distributing and transmitting electric energy; According to the appearance and structure, the bus bar is roughly divided into three categories: hard busbar, soft busbar and closed busbar.
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Advantages of a shared DC bus system – Wienal
The shared DC bus system is the future development direction in the application of multi-drive motors, which makes reasonable use of the regenerative energy of the system together with better dynamic and static functions and speed regulation accuracy, eliminating a lot of braking units and braking resistors, and the energy efficiency ratio of the system has been greatly improved.
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Lighting power busway service life - Wienal
The system consists of a current box, a bus body, a branch plug and device accessories.
When the heat dissipation of conductive copper strip has been effectively improved, the contact between the copper strip and the inner wall of the tube is reduced, and the insulation resistance and anti-aging ability of the tube body are strengthened, so as to prolong the service life of the pipe body. The life of the tube far exceeds ...
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A brief introduction to the classification of busway - Wiener
Busway (referred to as busway) is a busbar system composed of metal plates (steel plates or aluminum plates) to protect the shell, conductive bars, insulating materials and related accessories. It can be made into a plug-in closed bus with plug-in junction boxes at intervals, or as a feed-in type without a junction box in the center ...
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Wiener looks at the busway drawing method
First, in the CAD system drawing, it is a plan of the bus duct, and two parallel polylines can indicate the bus duct.
2. The busway includes the following parts:
1. Feeder busbar, which is used to transmit electricity
2. Plug-in busbar with plug-in interface above, ...
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Busway Installation Specification – Wiener
1: The basic requirements for the bus duct:
1) Conductor data: high-purity electrical copper drawn from national standard T2 electrolytic copper, with a purity of more than 99.9% and a full-length tinned copper conductor. 2) Shell: Select high-quality aluminum-magnesium alloy profiles that meet the strength, with heat dissipation ribs, and the appearance should be oxygen-proof.
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Precautions for the operation of low-voltage cabinets - Wienal
1. To carry out work in all and part of the energized panels, the equipment should be overhauled and separated from the operating machinery and equipment with obvious markings.
2. The secondary winding of the voltage transformer and the transformer should have reliable grounding maintenance.
3. On the secondary circuit of the voltage transformer in operation...
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Technical features of Wiener closed busbar
The out-of-phase shut-off bus adopts a fully connected structure, with optimized design, reasonable design, stable and reliable operation. Choose either natural cooling or forced air cooling.
The out-of-phase closing bus is to support the conductors of each phase bus with insulators and close them in their respective shells, and the shells themselves are electrically connected, ...
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Busbar differential protection switching operation – Wienal
1. Whether the maintenance scale of the bus differential is confirmed, and whether the maintenance target is unchanged
Generally, differential maintenance includes bus differential maintenance, transformer differential maintenance, generator differential maintenance and line differential maintenance. The basic principle of completing differential maintenance is the same, that is, each side or each ...
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Low-voltage cabinet for capacitance compensation – Wienal
Capacitor compensation is indispensable in low-voltage cabinets, so what is the effect of capacitor compensation. The meaning of this is that it acts as a capacitor. Let's take a look at the principle of capacitor compensation first, when the capacitor is compensated, the capacitor and the load are connected in parallel, and the capacitor is like a bin. When the load increases, the power supply has internal resistance, so that ...
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