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PONOVO POWER CO., LTD
No. 139 Jinghai Third Road, BDA, Beijing, China, 100176
Office
TEL. +86 (10) 59089666
E-Mail
Info@relaytest.com
Website
www.relaytest.com / www.ponovo.com.cn
PW-VP50 Polarity Checker
VERSION:
DATE:
This manual is the publication of PONOVO POWER CO., LTD. Any form of copy should
obtain the consent of it.
This manual represents the technical status for the moment of publishing. The product
information, description and specifications mentioned in the manual do not have any
contact binding force and PONOVO POWER CO., LTD remains the right to make
modifications to the technical specifications and configurations without prior notice.
PONOVO POWER explicitly exonerates itself from all liability for mistakes in this manual
User Manual
PW-VP50-AE-1.0
FEB 2021
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Summary of Contents for Ponovo PW-VP50
- Page 1 PW-VP50-AE-1.0 DATE: FEB 2021 This manual is the publication of PONOVO POWER CO., LTD. Any form of copy should obtain the consent of it. This manual represents the technical status for the moment of publishing. The product information, description and specifications mentioned in the manual do not have any contact binding force and PONOVO POWER CO., LTD remains the right to make...
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Page 2: Table Of Contents
PW-VP50 CT Polarity Checker Content Precautions ..........................3 Brief Introduction ......................4 Master machine and slave machine ................5 2.1 Master machine ......................5 2.2 Slave machine .......................7 CT Polarity testing wiring connection................9 Compare with traditional battery test ................. 10 Specifications ........................ 11 5.1 Specifications for master machine ................11 5.2 Specifications for slave machine ................ -
Page 3: Precautions
PW-VP50 CT Polarity Checker Precautions 1. The battery for master PW-VP50 is lithium battery with 8.4V. Please recharge the master machine with the charger of 8.4V. 2. The battery for slave PW-VP50 is AAA battery 4 pieces. Please switch off the slave machine after testing, and remove the batteries if there is no testing going on. -
Page 4: Brief Introduction
PW-VP50 CT Polarity Checker 1. Brief Introduction PW-VP50 CT polarity checker is the favorable meter which can be used for field CT polarity test in power plants, substitution and any other application which may need to check the polarity. There are 2 units included in PW-VP50. One master machine can automatically inject high-precision pulse current with adjustable amplitude and period to the primary side of CT, three-phase at the same time. -
Page 5: Master Machine And Slave Machine
PW-VP50 CT Polarity Checker 2. Master machine and slave machine 2.1 Master machine Phase A + Phase B + Phase C + Phase A - Phase B - Phase C - There are three pairs of current output ports A, B and C. - Page 6 PW-VP50 CT Polarity Checker The three ports will be connected with the CT primary current. Buttons on the master machine: Power: Press the power button 3 seconds to switch on or switch off the master machine. Phase output: It is used to set the output phase of the current pulse. Phase A, B, C or three-phase can output simultaneously.
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Page 7: Slave Machine
PW-VP50 CT Polarity Checker 2.2 Slave machine Inductive signal Inductive signal Positive Negative There is one pair of signal input port on the slave machine. The port will be connected with the CT secondary side. Note: The current amplitude for the input current can be over than 50mA, otherwise the machine will be damaged. - Page 8 PW-VP50 CT Polarity Checker for 2 seconds and alarm; if it is analyzed polarity Negative, the LED Negative polarity will be on in red without alarm,...
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Page 9: Ct Polarity Testing Wiring Connection
PW-VP50 CT Polarity Checker 3. CT Polarity testing wiring connection Slave Primary Secondary Sa1+ Sa1- Sa2+ Sa2- Master Sb1+ Sb1- Sb2+ Sb2- Sc1+ Sc1- Sc2+ Sc2- The master output will be connected with the CT primary and output pulse current with setting value. -
Page 10: Compare With Traditional Battery Test
By battery test, more than 2 engineers should be required for the site testing. Besides, the long-distance communications, testing wiring connection, etc makes the testing in low speed. Moreover, the pulse current amplitude will be affected by the resistance, and remaining battery. By using PW-VP50, the above advantages will be avoided. -
Page 11: Specifications
PW-VP50 CT Polarity Checker 5. Specifications 5.1 Specifications for master machine Phase output option: A phase, B phase, C phase, and three-phase Period output option: 2s, 3s, 4s, 5s Max output option: 1A, 2A, 3A, 5A Output mode: Single trigger, cyclic trigger... -
Page 12: Accessories
PW-VP50 CT Polarity Checker 6. Accessories The accessory package for PW-VP50 contains the following articles: Note: The accessories used with the kit should be supplied by the manufacturer. The pictures are for reference only. Primary test lead Amount: 6 pieces... - Page 13 PW-VP50 CT Polarity Checker Crocodile clamp in primary Amount: 6 pieces Crocodile clamp in secondary Amount: 2 pieces Battery charger Amount : 1 Amount : 1...
- Page 14 PW-VP50 CT Polarity Checker Portable case...
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