Summary of Contents for Eagle Eye Power Solutions GFL-1000
- Page 1 GFL-Series User Manual V1.1 GFL-1000 User Manual Ground Fault Locator www.eepowersolutions.com | Tel: 1-877-805-3377 | Fax: 1-414-962-3660 | info@eepowersolutions.com | V1.1...
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Page 2: Table Of Contents
GFL-Series User Manual V1.1 Contents Contents .......................... 1 Declaration of Conformity ..................3 Introduction ......................3 Equipment Information ..................... 3 Safety Precautions ..................... 4 Specifications ..................... 4 GFL – 1000 Equipment List ................5 Typical Applications ................... 6 Getting Started ......................7 Navigation ...................... - Page 3 GFL-Series User Manual V1.1 5.7.1 Resetting the Reference value ..............24 5.7.2 Using more than one Signal Receiver ............24 5.7.3 Voltage, Current and Selection ..............24 Signal Generator Additional Functions ..............24 Setting the Date and Time ................24 Settings ......................
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Page 4: Declaration Of Conformity
GFL-Series User Manual V1.1 1 Declaration of Conformity This equipment conforms to the relevant requirements of EMC Directive EMC 2004/108/EC. Samples of this equipment have been tested and found to conform to the following standards: EN50022:2006+A1:2007 EN55024:1998+A1;2001+A2:2003 EN61000-3-2:2006 EN61000-2-3:1995+A1+A2:2005 2 Introduction The GFL –... -
Page 5: Safety Precautions
GFL-Series User Manual V1.1 3.1 Safety Precautions The GFL – 1000 generates high voltages and is also connected to high voltage systems. Note the following: • When using the equipment Personal Protective Equipment must be worn at all times. In particular, insulating gloves must be worn when connecting test leads. -
Page 6: Gfl - 1000 Equipment List
GFL-Series User Manual V1.1 Current Clamp: 30 mm (Maximum cable diameter) φ8 and φ20 Current Sensor: Jaw Opening: 60 mm (2.36 in) Display: Backlit Color LCD Temperature: -5 – 40 °C (23 – 104 °F) Operating Environment: Power Requirements: Built in Li-ion Batteries with supplied Chargers Dimensions: 430 x 350 x 135 mm (17 x 13.7 x 5.3... -
Page 7: Typical Applications
GFL-Series User Manual V1.1 3.4 Typical Applications A typical supply to be tested will consist of a main bus connection with many branches to different loads or systems. Figure 3-1 shows a simplified circuit with loads connected via branches. Typical faults are also shown: Figure 3-1 Power Circuit showing Possible Faults 1. -
Page 8: Getting Started
GFL-Series User Manual V1.1 6. Leakage capacitance. This is not a fault, but leakage capacitance may be distributed around the system and will influence measurement (see Section 5.6.1) In all cases, the actual impedance (resistance) of the fault may be very high, very low due to a short circuit, or anywhere in between. -
Page 9: Navigation
GFL-Series User Manual V1.1 Remove the Signal Receiver from the case. Switch it on using the slide switch on the left side of the unit. Check that the display is lights and the battery is charged. The state of charge is indicated by the icon in the top right hand corner of the display. If necessary, charge the battery by connecting the smaller power supply for the Signal Receiver to the DC supply connection at the base of the receiver. - Page 10 GFL-Series User Manual V1.1 Figure 4-2 Signal Receiver Switch off the unit before making further connections. www.eepowersolutions.com | Tel: 1-877-805-3377 | Fax: 1-414-962-3660 | info@eepowersolutions.com | V1.1...
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Page 11: Setting Up The Signal Generator
GFL-Series User Manual V1.1 Plug in the test leads to the sockets on the front of the Signal Generator. Connect the red lead to the red socket marked (+) and the black lead to the black socket marked (-). Ensure these are correctly connected Fit the alligator clips to the end of the leads. Note that one of the clips includes an insulation piecing point. - Page 12 GFL-Series User Manual V1.1 Figure 4-3 Signal Generator Start up Menu On the main screen (see Figure 4-3), select GND-Fault using the arrow keys until it is highlighted; then press ENT. The next screen will allow the output signal to be adjusted, see Figure 4-4.
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Page 13: Setting The Output Voltage And Current Limit
GFL-Series User Manual V1.1 Figure 4-4 Voltage and Current Limit Settings 4.2.3 Setting the Output Voltage and Current Limit Set the output voltage and current limit by highlighting the appropriate value using the left and right arrow keys, adjusting the value using the up down arrow keys, pressing ENT again to save to value. - Page 14 GFL-Series User Manual V1.1 detection systems are present, set the current limit to UL, which will in any case limit the output power to about 5W or 40mA, whichever is less. Select Next to continue. The signal generator will operate and a screen similar to that shown in Figure 4-5 will appear.
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Page 15: Setting Up The Signal Receiver
GFL-Series User Manual V1.1 If Next is pressed, the generator will produce an output and the screen shown in Figure 4-6 will appear. Figure 4-6 Signal Generator Output The signal generator is now producing a continuous output voltage and current which is displayed on the screen. -
Page 16: Setting The Frequency And Audio Indicator
GFL-Series User Manual V1.1 Figure 4-7 Signal Receiver Starting Screen 4.3.1 Setting the Frequency and Audio Indicator. The screen shown in Figure 4-8 appears when GND-Fault is selected in the previous screen. The receiver frequency is fixed at 10Hz, so this cannot be changed An audio indicator can be set to assist fault tracing. -
Page 17: Setting The Reference
GFL-Series User Manual V1.1 Figure 4-8 Location Setting Screen 4.3.2 Setting the Reference Ensure the output of the Signal Generator has been set to continuous (Cont). Check that there is current flowing from the signal generator by noting the reading on the screen. - Page 18 GFL-Series User Manual V1.1 Figure 4-9 Current Clamp Position for Reference Calibration Allow the measurement to stabilize for five seconds, then select Set ref on the signal receiver screen. The display will state Setting Ref… and after a few seconds will indicate Setting Done! All subsequent measurements will now be referenced to this Signal Generator output value, defined as 100%.
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Page 19: Tracing The Fault
GFL-Series User Manual V1.1 Figure 4-10 Setting the Reference 5 Tracing the Fault 5.1 Basic Principles The Signal Generator is producing an AC voltage at a frequency that the Signal Receiver is sensitive to. If there is a fault in the circuit, there will be a current flow that will be detected by the current clamp. -
Page 20: Tracing An Ground Fault
GFL-Series User Manual V1.1 helps to reject noise and interference. Stray capacitance in the system will permit a small current to flow; filtering will also minimize the effect of this. The direction of current flow in Figure 4-10 (I direct.:) is shown with reference to the arrow on the current clamp. -
Page 21: Tracing 'Wire Mix' Faults
GFL-Series User Manual V1.1 Figure 5-1 Tracing a Ground Fault 5.3 Tracing ‘Wire Mix’ faults Where a fault has occurred between two separate, otherwise isolated circuits, the signal generator may be connected between the two circuits and the fault traced in a similar way to a ground fault. -
Page 22: Tracing Partial Short Circuits
GFL-Series User Manual V1.1 Figure 5-2 Tracing a 'Wire Mix' Fault 5.4 Tracing Partial Short Circuits Short circuits between the main power connections will cause protection circuits to open. However, a partial short may cause unwanted battery discharge and other problems. -
Page 23: Using Two Current Clamps
GFL-Series User Manual V1.1 Figure 5-3 Tracing a Partial Short Circuit Note that in all cases it is not necessary to check individual wires. Cable bundles feeding cabinets or equipment may be checked with one measurement and eliminated or traced in more detail as required. 5.5 Using Two Current Clamps The Signal Receiver is provided with two identical current clamps. -
Page 24: Factors Affecting Fault Tracing
GFL-Series User Manual V1.1 Figure 5-4 Tracing a Ground Fault using Two Clamps 5.6 Factors Affecting Fault Tracing. 5.6.1 Distributed Capacitance. Wherever cables run close together there is a significant capacitance which allows a leakage current to flow when AC voltage is present. Leakage capacitance is always present and does not represent a fault condition. -
Page 25: Hints And Tips
GFL-Series User Manual V1.1 5.7 Hints and Tips 5.7.1 Resetting the Reference value If the signal becomes weaker during tracing. the signal reference can be reset at any point, by setting the reference as described in Section 4.3.2 but with the current clamp at the point of weak signal. -
Page 26: Signal Receiver Additional Functions
GFL-Series User Manual V1.1 7 Signal Receiver Additional Functions 7.1 Spectrum Analyzer The spectrum analyzer function displays the range and magnitude of the frequencies present in the system under test. It may be used to identify sources of interference, which may then be isolated to facilitate signal tracing. The Spectrum Analyzer function is selected from the main menu by selecting Frequency. -
Page 27: Bp (Band Pass) Filter
GFL-Series User Manual V1.1 1000 2500 For initial use, use the 0.5Hz setting as this will allow analysis of frequencies around the Signal Generator frequency of 10Hz. 7.1.2 BP (Band Pass) Filter The band pass filter can be enabled to remove interference. The frequency is fixed at 10Hz to suit the Signal Generator frequency. -
Page 28: Oscilloscope
GFL-Series User Manual V1.1 Figure 7-2 Spectrum Analyzer Displays In Figure 7-2A, the cursor is set at 12Hz, and the high value of the 13Hz peak can be seen. The drag bar is showing a frequency range of about 3.5Hz to 17Hz, from full range of 0 to 50Hz. - Page 29 GFL-Series User Manual V1.1 Figure 7-3 Oscilloscope Function Three channels are provided. These can be enabled by checking the boxes labelled 1, 2 and 3. The range of each channel can be changed in the boxes to the right of the channel numbers.
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Page 30: System
GFL-Series User Manual V1.1 7.3 System Selecting System in the main menu will lead to a second screen with the choice of Setting or Version. 7.3.1 Version The version of firmware can be read here. Firmware updates can be provided if required. -
Page 31: Frequency Synchronization
GFL-Series User Manual V1.1 7.3.4 Frequency Synchronization The Signal Receiver is synchronized to the Generator during factory set up, so it should not be necessary to carry out synchronization in normal use. However, this can be carried out if exceptional phase shift is noted, which will affect the sensitivity of the measurements. -
Page 32: Troubleshooting
GFL-Series User Manual V1.1 The frequency of 10Hz is not adjustable on this variant, so press F Sync to start synchronization. The Receiver will step through several screens, (see Figure 7-6) including a 240 second synchronization process. The final screen will show Syn Done!, (not Setting Done) indicating that synchronization is complete. -
Page 33: Checking The Signal Generator
Section 4.2.4 2. Incorrect connection to bus 2. Check bus-bar connections. bar; no ground fault present GFL-1000 operates for a short Unit not fully charged before 1. Fully charge signal generator amount of time then the operation and receiver before using. -
Page 34: Cleaning, Storage, And Maintenance
GFL-Series User Manual V1.1 8.4 Cleaning, Storage, and Maintenance Ensure the units are switched off and disconnected from power sources. Clean all units with a soft damp cloth. Do not immerse in liquid. Do not use abrasives, solvents, or alcohol. Store the unit in the case provided in a dry area, protected from condensation and direct sunlight.