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ETCR9500C Three-Channel Wireless HV CT Ratio tester
Item No. 3634003
Item Name ETCR9500C Three-Channel Wireless HV CT Ratio tester
Item Price US$1019.06
Weight 10000 Gram
Quantity 100 PCS in stock now!
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Introduction for ETCR9500C Three-Channel Wireless HV CT Ratio tester

ETCR9500C Three-Channel Wireless HV CT Ratio tester

Descriptions for ETCR9500C Three-Channel Wireless HV CT Ratio tester

ETCR9500C Three-Channel Wireless HV CT Ratio tester

I Introduction

ETCR9500C Three-Channel Wireless HV CT Ratio tester is a core technological product under the long-term strategy of professional detecting techniques research on electric power instruments developed by ETCR, which is specific for the on-line measurement and detection for primary and secondary current, transformation ratio, error, phase (group) angle difference, polarity, phase sequence, and leaker in the high & low voltage current transformer and the voltage transformers in distribution system under 60KV (such as 10kV or 35kV ), and is composed of high voltage detector, three-channel low-voltage secondary current clamps, principal machine, high-voltage insulating rods, monitoring software, communication link, etc. it adopts the wireless transmission signal that is capable of penetrating wall obstacles with a direct-line transmission distance of about 30m.  ETCR9500C tester is widely applicable to the current detection, abstracting-proof of electricity and field operations of transformer substations, power plants, electrical power inspection departments, industrial and mining enterprises, inspection station, and electrical maintenance departments.
Current clamp: it adopts the special alloy, the latest CT technology, and the double shielding technology for a high accuracy, stability, and reliability during continuous monitoring in the entire year. 
Principal machine: it displays four sets of current signals, CT ratio, phase angle difference , and polarity visually in one screen simultaneously, which memory can store 1,500 sets of data; it is available to set the auto-save interval time to monitor leaker.
HV detector breaks the traditional structure with an automatic opening and closing functions, it is easy to clamp or release measured wire by pressing or pulling back insulating rods,   with the advantages of safety and time-saving. The lightweight insulating rod is characterized by thermo stability, moisture-proof, strong shock resistance & bending resistance high-insulation, high flexibility and so on.
Monitoring Software: Functions such as real-time monitoring, historical data search, accessing, browsing, saving, and printing data available; dynamic display;
ETCR9500C ratio tester integrates the functions of single-channel  wireless HV CT tester, HV & LV clamp current meter, HA current remote sensor, HA leaker tester, High accuracy clamp leaker meter, phase detector,  three-channel leaker recorder ,etc.
 

III Technical Specifications

 
Functions
The on-line measurement and detection for primary and secondary current, transformation ratio, error, phase (group) difference, polarity, phase sequence, and leaker in the three-channel high & low voltage current transformer and the voltage transformers
Power supply
HV Detector锛欴C6V alkaline batteries (1.5V AAA 脳 4)
Principal machine: DC6V alkaline batteries (1.5V AAA 脳 4)
30-hour continuous operation available
Test mode
Clamp CT, HV 1CT, LV 3 CT double- shield
Transmission mode
High-pressure tested data transmitted through wireless network, with a linear transmission distance of 20m;
Range
HV detector 1st: 0.0mA~1000A
LV current clamp 2nd: 0.01mA ~ 10A
Resolution
HV detector: 0.1mA; LV current clamp: 0.01mA
Primary circuit test accuracy
(23  卤 3 掳C below70% RH)
0.0mA~9.99A: 卤1%卤5dgt 
10.0A~49.9A: 卤2%卤5dgt 
50.0A~199.9A: 卤3%卤5dgt
200A~600A: 卤4%卤5dgt   
601A~1000A: 卤5%卤5dgt  
Secondary circuit test accuracy
0.00mA~10A: 卤1%卤5dgt (three-channel being displayed in one screen)   (23卤3掳C, less than 70%RH)
CT ratio
Three kinds of transformation ratio indications :
(1)convert the transformation ratio based on the adjustable basic value of 5A for secondary circuit current;
(2)convert the transformation ratio based on 10kV-YY of 10kV/380V, that means 1st means the current of the line under 380V, 2nd means the secondary circuit current of CT under the 380V, and then calculate the ratio between the 10KV line and the secondary circuit;
(3)the measured current ratio can be calculated by the measured CT ratio between the primary and secondary circuit.
Reference Range
Reference range of transformation: 0.00A ~ 99.99A, the default secondary circuit  current is transformed to 5A;
Range of Ratio error
(F.Er)
0.0% ~ 9.9%, the error between the measured CT ratio and the preset CT ratio
Range of CT ratio
0000~9999/0.0A~9.9A
Range of Ratio error
Phase polarity
Symbol  indicated for in-phase positive polarity
Symbol  indicated for in-phase negative polarity
Indication of Phase Sequence
Cursor in clockwise rotation and Positive Phase, indicated for positive phase sequence
Cursor in counterclockwise rotation and Negative Phase,  indicated for negative phase sequence
Indication of Error
Symbol Error indicated if  the tester can鈥檛 identify the phases, polarity,  and phase sequence properly;
Data Storage
1500 sets of dada memory; press the Left arrow key to select data, and to save and auto-number the selected data (the good condition of data available under power-down or battery replacement)
Automatic  Recording Interval Time
From 00 minutes to 99 minutes, the tester stops automatic record if being set to 00 minutes; the principal machine doesn鈥檛 shut down automatically if being set from 01 minutes to 99 minutes.
Sampling rate
3 times / sec
Shift
Full-automatic shift 
Dimensions
Principal machine:W75mm 脳 H170mm 脳 T30mm;
HV detector: W 76mm 脳 H 255mm 脳 T 31mm;
LV current clamp: W 70mm 脳 H115mm 脳 T 38mm;
Clamp Size
HV detector clamp: 蠁48mm
LV current clamp: 25mm 脳 30mm
Voltage
Less than 60kV voltage for line test(operation by being connected to 5 insolating rods required)
Display Mode
LCD: 128dots 脳 64dots;
backlight available for dark areas
LCD Size:
44mm 脳 27mm;
Data Retention
Press the Left arrow key to retain the data ; press the Left arrow key to cancel retention if the symbol HOLD displays;
Data Search
Press the MEM key and the Arrow key to search data;
Overflow Display
Overflow available if being out of range: the symbol OL A displayed;
Zero-signal indication
The symbol --- is shown if the principal machine can鈥檛 receive the signal from the HV detector;
Backlight Control
Available; ON / OFF means to open /close the backlight;
Alarm prompt
The principal machine can sound an alarm of beep - beep beep if the measured value is more than the preset error. and press the Right arrow key to launch or stop the alarm function;
Auto power-off
Automatic power-off available after about 15 minutes as of starting;
Battery voltage
The low- voltage symbol is displayed to remind user to replace the battery if the battery voltage is lower than 4.8V;
Weight
Principal machine:240g (including batteries)
HV detector: 335g (including batteries)
LV current clamp: 150g 脳 3
Total weight: 10kg (including instrument box and the insulating rods)
Requirements on Interferences
No strong electromagnetic interference; no interference from 433MHz and 315MHz channel 
Operating temperature and humidity
-25~45掳C; less than 80%Rh
Storage temperature and humidity
-10~60掳C less than 70%Rh  
Insulating rod size
Outer diameter 蠁32mm, inner diameter 蠁24mm, 1m /piece, 5 pieces
Lead length of LV current clamp
2 m / Piece
Dielectric strength
AC100kV/rms between HV detector cover and the 5th insulating rod; the AC1000V/rms between the principal machine and the LV current clamp shell between
Structure
Anti-leak type II (HV detector)
 
III Field Application

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