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Testing and Quality Control

​Oswell maintains the continuous effectiveness of the quality system through annual audits, continuously improves and avoids making the same mistakes, good continuous training methods, strict technological processes, throughout the daily management of all aspects.

Current transformer power take-off device

Features ● Output standard DC voltage ● Power-taking CT open-close structure, easy to install and operate ● The power conversion device is fixed with screws, which is easy to install ● Reserved for external energy storage device port

Current Transformer and Potential Transformer

Also known as CTs, current transformers are devices that measure alternating current. They are widely used to measure high magnitude currents. A current transformer essentially lowers (steps down) a high current to a lower, safer level that you can manage properly. It steps down the current to be measured so that you can measure it with an average range ammeter.

High Precision Current Transformer

● low price ● Various sizes ● Asymmetrical PCB mounting mode ● Single-turn through-core primary winding application ● Applied to occasions requiring high precision and small phase error ● Applied to high-precision measuring devices for current, power and electric energy

single-turn current transformer Core column type

Core column type: The primary coil is a copper column installed in the wall-penetrating magnetic sleeve, and the wall-penetrating The magnetic sleeve is the main connection between the primary coil and the secondary coil and the primary coil to the ground.

Parameters of double coil relays

Type: Double coil magnetic latch type (reverse polarity) Manual switch type Series : ADJH series Model: ADJH24112 Appearance size: 39×15×30.2(L×W×H)

Three Phase Magnetic Latching Relay

3 groups of 120A contact switching capability Contact on-off detection auxiliary switch can be provided Coil control single and double coil optional

power relay has the following precautions in use

When choosing a relay with QC lead-out method, please do not use soldering to connect the load lead-out end of the relay. If other welding methods are used, it is also necessary to ensure that the heat generated by welding will not affect the function of the magnetic latching relay

The magnetic latching relay has the following precautions in use

Please apply a suitable voltage to the coil according to the coil polarity specified in the manual, otherwise the operating voltage of the relay will increase or even not operate; it needs to be changed When driving the polarity, please use the "-R" type relay.

Magnetic Latching Relay characteristics

The factory state of the Magnetic Latching Relay is in the state of action or return, but it may change due to the impact of transportation or relay installation and other factors, so please set it to the state of return or action as required when using it (when the power is connected);

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