NACT Automatic type CT ratio polarity tester
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/5A；5A/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	0.0mA～10.0A:       ±1%±5dgt
	10.0A～49.9A:      ±2%±5dgt
	50.0A～199.9A:     ±3%±5dgt
	200A～600A:        ±4%±5dgt
	601A～1000A:       ±5%±5dgt
Secondary circuit test accuracy 23 ℃ ± 3 ℃, below 80% RH	0.00～10A:  ±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