Subscribe to Our Youtube Channel
Summary of Contents for Major tech MT Series
- Page 1 USER'S MANUAL HIGH VOLTAGE PHASE COMPARATORS MT Series Double Poles Model System Voltage Full Scale MT6kV 6.6kV MT11kV 11kV 12kV MT22kV 22kV 24kV MT33kV 33kV 36kV MT44kV 44kV 48kV...
-
Page 2: Table Of Contents
INDEX PAGE SAFETY RULES..........GENERAL DESCRIPTION......PRINCIPLE OF OPERATION......PROVING THE PHASE COMPARATORS..LIMIT MARK........... LABELS AND MARKING........ RANGE OF MODELS........INSTRUCTION FOR USE......OPERATION........... SPECIFICATIONS.......... SCALES............DIRECTIONS FOR USE........ TESTING FOR PHASING PRESENCE..CARE AND MAINTENANCE......LIMITED WARRANTY........NOTES............ -
Page 3: Safety Rules
SAFETY RULES ● Only Personnel who are fully trained in the use of High Voltage Phase Comparators should use this equipment. ● Be aware that the system that it will be used on are powered from high voltages which are lethal. ●... -
Page 4: General Description
GENERAL DESCRIPTION ● The range of high Voltage Phase Comparators have been designed to comply with and exceed the requirements of VDE0681Part5. ● The Phase Comparators are double pole devices which are used to determine the correct Phase Relationship between two energized conductors of the Same nominal Voltage and frequency. -
Page 5: Proving The Phase Comparators
PROVING THE PHASE COMPARATORS ● Before and after using a Phase Comparator and accessories, a functional test should be performed on the Phase Comparator as it is to be used on the source or circuit to test. ● A High Voltage Insulation tester can be used for this purpose. ●... -
Page 6: Labels And Marking
LABELS AND MARKING ● The following labels must be present on the Master Pole. MT6KV 50/60Hz MT11KV 50/60Hz MT22KV 50/60Hz MT33KV 50/60Hz MT44KV 50/60Hz PHASE PHASE PHASE PHASE PHASE (6.6kV) COMPARATOR COMPARATOR COMPARATOR COMPARATOR COMPARATOR 11kV 22kV 33kV 44kV Climatic Class - Normal Climatic Class - Normal Climatic Class - Normal Climatic Class - Normal... -
Page 7: Range Of Models
RANGE OF MODELS ● Models are available to cover system voltages from 1kV to 44kV @50 or 60Hz. ● Contact the factory for information on models suitable for other voltages. ● The following models are available as standard instruments: Model System Full Scale Maximum... -
Page 8: Instruction For Use
INSTRUCTION FOR USE ● Before using the Phase Comparator, clean the Front End (Fiber Glass) with a polymer polishing. ● All models do not require batteries and are being signal driven (current taken from the source or circuit under test) and do not require arming. -
Page 9: Operation
OPERATION To determine the correct phase relationship between two energized conductors, the following procedure should be followed: ● First, Check that each Phase to be compared is individually energized. 1. With one handle held in each hand, touch one bare conductor (first phase which will be compared later) with one contact electrode and touch the earth with the other contact electrode. -
Page 10: Specifications
SPECIFICATIONS Safety Standard : IEC 61481 Electrical MT6kV MT11kV MT22kV MT33kV MT44kV Total Resistance 4.48MΩ 6.78MΩ 10.82MΩ 19.68MΩ 26.8MΩ Response time <1Sec <1Sec <1Sec <1Sec <1Sec Neon Threshold 1.2kV 1.2kV 1.2kV 1.2kV 1.2kV Neon Lit Fully @ 1.5kV 1.5kV 1.5kV 1.5kV 1.5kV Mechanical... -
Page 11: Scales
SCALES MT6kV MT11kV MT22kV MT33kV MT44kV Special Scales and configuration can be manufactured on a case by case basis. Contact the factory with your requirements. -
Page 12: Directions For Use
DIRECTIONS FOR USE It is the user's responsibility to ensure that only competent personnel, with the necessary knowledge and training to work with high voltage, use and handle this equipment. Before using the Phase Comparators, it is recommended to check them with a High Voltage Insulation tester (if possible a variable one). -
Page 13: Testing For Phasing Presence
TESTING FOR PHASE PRESENCE Before doing the Phase Comparison test, you must ensure that the feeders to be compared are live. FEEDER “1” FEEDER “2” Example: Preparing to Phase “A” Compare two Phases Phase “A” From different feeders Phase “B” Phase “B”... -
Page 14: Care And Maintenance
CARE AND MAINTENANCE ● Storage: The Phase Comparator and it's accessories should be stored in the proprietary carrying case/bag when not in use. ● Transporting: When the equipment is in transit it should be stored in its carrying case/bag. Whilst the equipment has been designed for field use it should not be subjected to excessive bumps and shocks. -
Page 15: Limited Warranty
LIMITED WARRANTY We warrant the product manufactured by us to be free from defective material or factory workmanship and agree to repair or replace this product which, under normal use and service, disclose the defect to be the fault of our manufacturing, with no charge for parts and service. -
Page 16: Notes
Always make a sketch before proceeding with testing High Voltage and ensure you are fully in control of the testing and understand fully what is going on. Failure to do so can result in fatal accidents. MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com...
Need help?
Do you have a question about the MT Series and is the answer not in the manual?
Questions and answers