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Kyoritsu Insulation Tester Specifications

The Kyoritsu is one of the most reliable manufacturers in the electrical market today. They are known widely for their Quality Control Concept and have lived up to expectations so far. And their series of insulation testers are, needless to say, quite a name. They have been introducing insulation testers for quite some time and are doing excellent business. And we, the System Protection are one of their proud agents. We bring before you a variety of products that they offer to choose from. Below we shall discuss the products and their specifications in details.

THE KYORITSU INSULATION TESTER SPECIFICATIONS:

Below we see a range of Kyoritsu Insulation Tester.

MODEL 3321A:

·         AC voltmeter with linear and easily readable scales

·         Colour coded scales for easy reading

·         Designed to meet IEC/EN 61010-1 CAT.III 600 V, CAT.II 1000 V

·         Auto-discharge function

·         Shoulder strap for hands free

·         Test lead set with remote control switch

·         Backlight function to facilitate working at dimly illuminated locations

MODEL 3165:

·         500 V/1000 Mega- Ohm

·         Expanded megohm scale for easy reading

·         New robust housing case to prevent damage

·         AC voltmeter scale for easy reading

·         Neck strap for both hand's operation

MODEL 3131A:

·         Live circuit warning lamp plus audible warning

·         Automatic discharge of circuit capacitance

·         Fuse protected (continuity range only)

·         Battery check LED

·         Backlight function & Front panel zero adjust

·         PRESS TO TEST button with lockdown feature

MODEL 3021:

·         3 functions in one unit, insulation test with 4 voltage ranges, continuity test, AC voltage measurement

·         Memory function up to 99 data

·         Safety lock system & backlight LED

·         0 ohm adjustment at continuity measuring range

MODEL 3007A:

·         Bar graph to display insulation resistance

·         Trac-Lok mode to conserve battery life

·         Live circuit warning beeper

·         Backlight function & auto null function

·         Displays external AC voltage along with flashing symbol

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MODEL 3124:

·         DC voltage output for recorders

·         Automatically discharges after tests

·         Operated by rechargeable Nickel- Cadmium batteries

·         Permits a wide range of insulation testing

MODEL 3125:

·         Polarization Index measurement

·         Timer measurement function

·         Auto discharge & Voltage output warning function

·         Auto power off & battery check

·         Large digital display with Bar Graph indication and Backlight

MODEL 3127 (new):

·         Test voltage up to 5kV

·         Resistance up to 10 Terra ohms

·         Short circuit current up to 5 mA

·         Wireless communication by Bluetooth for transferring

MODEL 3144A:

·         Miniature light weighed tester with full measurement functions

·         Automatic circuit discharge

·         Backlight function

·         Test leads with remote control switch

·         New robust housing case and neck strap for both hands operation

MODEL KT170 (new):

·         Penlight torch - white LED

·         Phase rotation test of the range 200~ 690 V

·         Continuity test of the range 0~400 kiloohm

·         LED range - 12/ 24/ 50/ 120/ 230/ 400/ 690 V

·         Single pole phase test of the range 100~690 V

·         Voltage range - 12~ 690 V AC(16~400Hz), DC

MODEL KT171 (new):

·         Large and bright LED's: values are visible in the dark place

·         Ergonomic design fits in the hand

·         Two functions are available in one model

·         Voltage range- 12~ 690 V AC(16~400Hz), DC

·         Phase rotation test of the range 200~ 690 V

·         Continuity test of the range 0~400 kiloohm

·         LED range - 12/ 24/ 50/ 120/ 230/ 400/ 690 V

·         Single pole phase test of the range 100~690 V

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How Transformers Work

It is important to remember that transformers do not generate electrical power; they transfer electrical power from one AC circuit to another using magnetic coupling. The core of the transformer is used to provide a controlled path for the magnetic flux generated in the transformer by the current flowing through the windings, which are also known as coils.

There are four primary parts to the basic transformer. The parts include the Input Connection, the Output Connection, the Windings or Coils and the Core.

Input Connections - The input side of a transformer is called the primary side because the main electrical power to be changed is connected at this point.

Output Connections - The output side or secondary side of the transformer is where the electrical power is sent to the load. Depending on the requirement of the load, the incoming electric power is either increased or decreased.

Winding - Transformers have two windings, being the primary winding and the secondary winding. The primary winding is the coil that draws power from the source. The secondary winding is the coil that delivers the energy at the transformed or changed voltage to the load. Usually, these two coils are subdivided into several coils in order to reduce the creation of flux.

Core - The transformer core is used to provide a controlled path for the magnetic flux generated in the transformer. The core is generally not a solid bar of steel, rather a construction of many thin laminated steel sheets or layers. This construction is used to help eliminate and reduce heating.

Transformers generally have one of two types of cores: Core Type and Shell Type. These two types are distinguished from each other by the manner in which the primary and secondary coils are place around the steel core.

When an input voltage is applied to the primary winding, alternating current starts to flow in the primary winding. As the current flows, a changing magnetic field is set up in the transformer core. As this magnetic field cuts across the secondary winding, alternating voltage is produced in the secondary winding.

The ratio between the number of actual turns of wire in each coil is the key in determining the type of transformer and what the output voltage will be. The ratio between output voltage and input voltage is the same as the ratio of the number of turns between the two windings.

A transformers output voltage is greater than the input voltage if the secondary winding has more turns of wire than the primary winding. The output voltage is stepped up, and considered to be a "step-up transformer". If the secondary winding has fewer turns than the primary winding, the output voltage is lower. This is a "step-down transformer".