Product Details

NANAO ELECTRIC Manufacture NACT type CT ratio polarity tester

Brand Name NANAO ELECTRIC
Place of Origin China
Model Number NACT
Type Other, H.V Testing Instrument
External Size 500*400*680mm
Protection Level IP65

Product Features

Product introduction

Differ from the traditional structure, specially for measuring high and low voltage secondary circuit of a current, variable ratio, relative to other, polarity, leakage current and well-designed. Using the latest CT technology and mask figures integration technology. By a dedicated high voltage detector, low current clamp, the host, high voltage insulation rod, monitoring software and other components, and its wireless transmission of test data can penetrate obstacles to multi-storey buildings, linear transmission distance up to 30 meters. If you do not use insulated rod, but also can be used as high-precision voltage clamp meter, leakage current meter can accurately measure 0.00mA ~ 1000A current or leakage current.

Also called name

CT ratio polarity line detector, high voltage transformer ratio tester, high voltage CT ratio tester, high voltage CT ratio tester, high voltage transformer ratio tester, live measurement of high voltage CT ratio tester, high CT ratio tester

The Characteristics of the products 

1. we are the first company who take voltage measuring method in use, small in volume, light in weight, portable, meet the needs for field tests.

2. voltage wave form generated by single chip process, clean and pure, without the interference by power network.

3.the internal of the device uses constant voltage source, with stable reading.

4. applies to current transformers of tens ampere to tens thousands ampere and all electromagnetic PT.

5. can directly display the transformer ratio.

6. electron method to test the transformer polarity, simple and straightforward .

The parameters of the products

1. Power supply: AC220V/50Hz

2. Ratio measurement range:5A/5A------25000A/5A5A/1A-------5000A/1A

3. With CT, electromagnetic PT whole series

4. Accuracy :0.2%

5. Dimension:280mm*220mm*120mm

6. Weight :2Kg

Function

High and low voltage secondary circuit of a current ratio, polarity , phase types, leakage current online monitoring ; transformer sides the current size , ratio -line monitoring

Power source

 DC6V alkaline batteries (1.5V AAA × 4) approximately 30 hours of continuous work

Test methods

Clamp CT

Transmission

Wireless transmission, transmission distance of about 30m straight line

Display Mode

LCD: 128dots × 64dots; blue backlight function , suitable for dark places

LCD Size

Display field : 44mm × 27mm

Meter size

Host : width height thickness 75mm × 170mm × 30mm
Voltage tester : width height thickness 76mm × 255mm × 31mm
Low Current Clamp : Width height thickness 63mm × 160mm × 23mm

Jaw size

 Voltage tester : φ48mm
Low current clamp : φ30mm

Sampling rate

2 times / sec

Measuring range

High voltage detector : 0.0mA ~ 1000A
Low Current Clamp : 0.00mA ~ 10A

Resolution

High voltage detector : 0.1mA; Low Current Clamp : 0.01mA

Gearshift

Automatic gearshift

Primary circuit test accuracy
23 ℃ ± 3 ℃, below 80% RH

0.0mA10.0A:       ±1%±5dgt 

10.0A49.9A:      ±2%±5dgt 

50.0A199.9A:     ±3%±5dgt

200A600A:        ±4%±5dgt   

601A1000A:       ±5%±5dgt  

Secondary circuit test accuracy
23 ℃ ± 3 ℃, below 80% RH

0.0010A:  ±1%±5dgt

Ratio

Three kinds of variables than the display : ( a secondary circuit measured current ratio ; commuted to the secondary circuit 5A ratio ; to the 10kV-YY transformer 10kV/380V commuted ratio ) , the maximum ratio of 1:1 ten million ( 1.0K7)

Data storage

3000 groups , press the HOLD key to keep the data and numbered storage automatically (not affact by replace the battery or a sudden brownout)

Line Voltage

The following 60kV line test ( must be insulated with 5 lever operation )

Data Hold

Press HOLD to hold the data , HOLD symbol is displayed , press the HOLD button to cancel maintained

Data checking

Press HOLD + POWER key to enter the Data Recall Mode

Overflow Show

Overrange overflow function : "OL A" symbol is displayed

No signal indication

When the host transmits a signal is not received prompt " No Signal"

Automatic shutdown

About 15 minutes after the start , the meter will automatically shut down

Battery voltage

When the battery voltage is lower than 4.8V, low battery symbol appears , replace the battery alert

Instrumentation quality

Host : 240g ( with battery )
High voltage detector : 335g ( with battery )
Low current clamp : 170g
Instrument total mass : 12Kg ( including insulation rod and battery )

Outside interference

No particularly strong electromagnetic fields ; without 433MHz, 315 MHz co-channel interference

Working temperature and humidity

-25℃45℃below 80%Rh

Storage Temperature and Humidity

-10℃60℃below 70%Rh

Insulating rod dimensions

φ32mm, 1m / section ( 5 standard ) , can be extended .

Low current clamp wire length

 Standard 2 m ( distance can be lengthened according to the site )

Dielectric Strength

High voltage detector : AC100kV/rms ( Section 5 insulating rod with high current clamp clamp core )
Host and low-voltage current clamp : AC1000V/rms

Structure

Drip Ⅱ type ( high voltage detector )

Safety Rules

IEC1010-1, IEC1010-2-032, Pollution degree 2, CAT Ⅲ (600V), IEC61326 (EMC standard )

Accessories

Clamp : 1 ; Receiver: 1 ; current clamp : 1 ; Disc : 1 ; RS232 communication cable : 1 ; meter box : 1 ; insulating rod ( 1 m ) : 5 ; batteries (LR03) : 8

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