GE 10.320.704 Instruction Manual Download Page 18 | Manualshive

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GE 10.320.704 Instruction Manual Download Page 18

HARDWARE

HIDs with latching relay use 2 K 75W resistors, while HIDs without latching relay use 1 K 100 W resistors.

FIGURE 3-4 INPUT CONNECTIONS

Current flows through stabilizing resistors into current input of the overcurrent module. Once high-speed overcurrent
module trips, latching relay contacts short-circuit stabilizing resistor plus current input. In this way, excessive heating
causing damage to resistors is avoided. MOV is used to avoid over voltages damaging current input, limiting voltage
to 1900V.

WARNING

In order to prevent personal damage connect the relay to ground.

For this purpose, please follow the safety instructions below

GEK-113064

HID High Impedance Differential Module

3-5

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Summary of Contents for 10.320.704

Page 1: ...12 E gemultilin ge com Internet www GEMultilin com Copyright 2005 GE Multilin HID High Impedance Differential Module Instruction manual GEK 113064 GE Multilin Avda Pinoa 10 48170 Zamudio SPAIN T 34 94 485 88 00 F 34 94 485 88 45 E gemultilin euro ge com g GE Consumer Industrial Multilin ...

Page 2: ... 3 2 STABILIZING RESISTORS 2 2 2 3 3 LATCHING RELAY 2 3 2 3 4 ENVIRONMENTAL 2 3 2 3 5 TYPE TESTS CERTIFICATIONS 2 4 2 3 6 APPROVALS 2 4 3 HARDWARE 3 1 3 1 MODULE DESCRIPTION 3 1 3 1 1 MOUNTING 3 2 3 1 2 EXTERNAL CONNECTIONS DIAGRAM 3 2 3 1 3 CONTROL POWER 3 3 3 1 4 MECHANICAL DESCRIPTION 3 3 3 1 5 MOUNTING 3 3 3 1 6 REAR DESCRIPTION 3 4 3 1 7 INPUTS 3 4 4 ACCEPTANCE TESTS 4 1 4 1 WIRING AND NECESS...

Page 3: ...TABLE OF CONTENTS 1 2 HID High Impedance Differential Module GEK 113064 ...

Page 4: ...e that all warnings and cautions in this manual are reviewed to help prevent personal injury equipment damage and or downtime 1 1 1 CAUTIONS AND WARNINGS CAUTION The operator of this instrument is advised that if the equipment is used in a manner not specified in this manual the protection provided by the equipment may be impaired Installation must be according to the national electric code of the...

Page 5: ...at you receive the following items with your device Mounting screws for rear terminals and for fixing the device to a cabinet Wiring diagram Certificate of compliance For product information instruction manual updates please visit the GE Multilin Home Page www GEMultilin com Note If there is any physical damage noticed on the device or if any of the contents listed are missing please contact GE Mu...

Page 6: ...pe Tel 34 94 485 88 54 Fax 34 94 485 88 38 Email multilin tech euro ge com Worldwide Tel 1 905 294 6222 Fax 1 905 201 2098 Email multilin tech ge com The information provided herein does not intend to cover all details of variations of the described equipment nor does it take into account the circumstances that may be present in your installation operating or maintenance activities Should you wish...

Page 7: ...e safety instructions below The ground screw shown in the following figure must be correctly grounded Grounding screw FIGURE 1 3 GROUNDING SCREW LOCATION GE Multilin will not be responsible for any damage in the device or connected equipment whenever this elemental safety rule is not followed 1 4 HID High Impedance Differential Module GEK 113064 ...

Page 8: ... together with voltage limiters MOV to be used with a high speed overcurrent relay in order to obtain a high impedance differential protection scheme External CT s are differentially connected exactly as for traditional high impedance differential protection relaying FIGURE 1 4 TYPICAL APPLICATION OF AN HID AS A BUSBAR DIFFERENTIAL PROTECTOR GEK 113064 HID High Impedance Differential Module 1 5 ...

Page 9: ...g instructions Review all WARNINGS and CAUTIONS 1 4 2 FRONT PLATE BUTTON The HID front plate incorporates a reset pushbutton to reset the latching relay once the fault has been cleared in order to eliminate the resistors short circuit FIGURE 1 5 HID FRONT PANEL 1 6 HID High Impedance Differential Module GEK 113064 ...

Page 10: ...rs generators or motors as well as restricted earth fault protection HID modules are available in single phase models for applications such as restricted earth fault protection in a transformer winding models with two resistors for applications in transformers with two grounded windings and three phase models for busbar high impedance differential protection Each HID module incorporates 2000 Ohm r...

Page 11: ...lay 2 125 Vdc Latching relay 3 220 Vdc Latching relay 2 3 TECHNICAL SPECIFICATIONS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2 3 1 VOLTAGE LIMITERS TECNOLOGY MOV METAL OXYDE VARISTOR Rated Voltage VDC Rated Voltage VAC Rated Current VDC Pick Voltage Pick Current Power Dissipation Rated Power Absorption 350 V 290 V 4 7 mA 50 1 900 V 10 A 8 W 5 400 J with latching relay 10 000 J without la...

Page 12: ...ng 1 second Make and carry 30 A Breaking 5000 VA non inductive at 250 Vac 375 W inductive at 125 Vdc 250 W inductive at 250 Vdc ENVIRONMENTAL Temperature range 20ºC to 60ºC Maximum relative humidity 95 Dielectric Withstand Between independent circuits 2500 Vca one minute Between circuits and ground 2500 Vca one minute Between open contact terminals 1800 Vca one minute Mechanical life More than 10 ...

Page 13: ...nvironmental and operating requirements established in ANSI standards C37 90 IEC 255 5 IEC 255 6 and IEC 68 Electrical Environment Test Standard Class IEC 60255 5 Insulation Dielectric 2kV IEC 60255 5 Insulation Impulse Voltage 5 kV 0 5 J Atmospheric Environment Test Standard IEC 60068 2 1 Temperature Cold Heat IEC 60068 2 2 Temperature Dry Heat IEC 60068 2 3 Relative Humidity 2 3 6 APPROVALS Manu...

Page 14: ... special care should be taken while manipulating HID modules Operators before even touching any components must make sure that their bodies are not charged by either touching a grounded surface or by using an antistatic grounded wrist bracelet 3 1 MODULE DESCRIPTION The HID units incorporate the following parts 1 Latching relay 2 Resistors 3 MOV Metal Oxide Varistor 4 Reset button Metallic Case 1 ...

Page 15: ...ns among the stabilizing resistors MOV and latching relay contacts Components are mounted on a base screwed to the rear side of the case The module is closed with the frontal plate where the latching relay reset button is located The wiring is made in the rear side of the module Drilling dimensions are shown on the drilling dimension diagram FIGURE 3 5 3 1 2 EXTERNAL CONNECTIONS DIAGRAM FIGURE 3 2...

Page 16: ...on It is made of stainless steel AISI 304 coated with an epoxy layer and the rest of the metallic pieces are covered with a high quality resistive coating that has successfully passed at least 96 hours in the salt spray chamber S N ASTM B 117 As well an IP52 IEC 529 protection degree against dust and water through the front and with the relay mounted in the panel 3 1 5 MOUNTING The HID module is s...

Page 17: ...ents Stabilizing resistor MOV Contact from latching relay Inputs vary depending on the HID model chosen Thus if the model corresponds to a type 1 application in the model selection list HID will have one single input two for a type 2 application and three for a type 3 application HIDs can be supplied with or without latching relay If the unit includes a latching relay then MOVs and resistors are d...

Page 18: ...eed overcurrent module trips latching relay contacts short circuit stabilizing resistor plus current input In this way excessive heating causing damage to resistors is avoided MOV is used to avoid over voltages damaging current input limiting voltage to 1900V WARNING In order to prevent personal damage connect the relay to ground For this purpose please follow the safety instructions below GEK 113...

Page 19: ...ed together with a high speed overcurrent module or it can be mounted alone FIGURE 3 5 shows the drilling panel for this situation FIGURE 3 5 DIMENSIONS AND DRILLING FOR HID MODULE 3 6 HID High Impedance Differential Module GEK 113064 ...

Page 20: ...inputs For other models please check the corresponding external wiring diagram 4 2 VISUAL INSPECTION Verify that the HID unit has not suffered any damage due to its handling and transport Verify that all the screws are correctly fixed and that the terminal board is in good condition Check that the information shown on the relay identification label corresponds to the requested relay model 4 3 CONT...

Page 21: ...during one second In case the Hi Pot device used to test the relay trips due to excessive consumption apply the test between each group and ground one at a time 2500 RMS volts will be applied progressively between groups during one second Group 1 LATCHING RELAY contacts A5 A6 A7 A8 A9 A10 A11 A12 B1 B2 B3 B4 B5 B6 B7 B8 Group 2 LATCHING RELAY coils A1 A4 B9 B12 Group 3 Pushbutton C5 C6 C7 C8 Group...

Page 22: ...220 Vdc 4K2 4K2 NOTE An error of 20 will be admitted Resistors Measure Check that the resistor value between terminals is 2K with latching relay 1K without latching relay NOTE An error of 12 will be admitted C12 D8 C11 D7 C10 D6 Thyrites current measure Applied voltage Thyrite Terminals 290 Vac C12 D4 2 10 mA C11 D3 2 10 mA C10 D2 2 10 mA GEK 113064 HID High Impedance Differential Module 4 3 ...

Page 23: ...osed and that there is continuity between each pair of them Apply voltage to terminals B9 and B12 and verify that latching relay contacts opening time is below 20 ms Check that all auxiliary contacts have changed to their default position open and therefore there is no continuity between each pair of them Lamp Apply the latching relay rated voltage to terminals CN A6 and CN A9 and check that the b...

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