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TemPower 2
AR ACB Installation Manual
ACB Types:
AR208S, AR212S, AR216S, AR220S, AR325S, AR332S, AR440S, AR212H, AR216H, AR220H, AR316H, AR320H, AR325H, AR332H
Notice
Read this manual before installing, operating, servicing, or inspecting the ACB.
Please retain this manual for future reference.
Electrical work must be done by competent persons.
ACB maintenance, inspection, parts replacement, OCR field tests and setting changes must be performed by competent persons who are authorised to
do so by the NHP Products dept.
TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019
2019
22
th
October 2019
1

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Summary of Contents for NHP TERASAKI TemPower 2 AR208S

  • Page 1 Electrical work must be done by competent persons. • ACB maintenance, inspection, parts replacement, OCR field tests and setting changes must be performed by competent persons who are authorised to do so by the NHP Products dept. October 2019 TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 2: Table Of Contents

    TemPower 2 AR ACB Installation Manual Contents 5-2-9-1 Protection characteristics S characteristic OCR’s .... 1. SAFETY NOTICES ................5-3. H ......OW TO ISPLAY EASUREMENTS AND ETTINGS 5-3-1. General TEMPro PREMIER OCR ..........2. RECEIVING AND HANDLING ............... 5-3. H ......
  • Page 3 CUSTOMER FIT 8-4-1 Modbus Communications ............8-11 A – ............CCESSORIES NOT CUSTOMER FIT 8-4-1-1 Data Variables available for LCD Display and Communication 116 8-12 NHP ............INTERNAL AND FIELD SERVICES 8-4-1-2 Modbus Wiring ............... 8-13 S ................ERVICE EPORT 8-4-1-3 T2ED Circuit Breaker External Display ......
  • Page 4: Safety Notices

    1. SAFETY NOTICES Thank you for purchasing the TERASAKI AR-series Air Circuit Breaker (TemPower2). This chapter contains important safety information. Be sure to carefully read these safety notices, instruction in this manual, and other documents accompanying the Air Circuit Breaker (hereinafter referred to as the ACB) to familiarize yourself with safe and correct procedures or practices before installing, operating, or servicing the ACB.
  • Page 5 J Maintenance and Inspection Precautions ACB maintenance, inspection and parts replacement must be performed by competent persons authorized by NHP. Do not touch ACB current carrying parts and ACB structural parts close to a current carrying part immediately after the ACB trips open.
  • Page 6: Receiving And Handling

    2. RECEIVING AND HANDLING Upon receipt of your ACB, check the following. If you have any question or problem, contact NHP at the indicated number on the back cover of this manual. Check that the ACB received is as ordered and that the accessories are as specified.
  • Page 7: Transporting The Breaker Body

    2-1-2. Transporting the breaker body Use an optional lifter or lifting plate to transfer the breaker body. When transporting the breaker body on a lifter, move the lifter with the lifter fork held at the lowest possible position. Take care not to exert forces on the front cover and the control circuit contacts shown in Fig. 2 . Otherwise, a deformation or damage may result. 2-1-3.
  • Page 8: Installation Precautions

    2-3. Installation Precautions Electrical work must be done by competent persons. Do not place the ACB in such an area that is subject to high temperatures, high humidity, dusty air, corrosive gases, strong vibration and shock, or other unusual conditions. Mounting the ACB in such an area could cause a fire or malfunction. Be careful to prevent foreign objects (such as debris, concrete powder, dust, chippings, and iron powder) and oil or rainwater from entering the ACB.
  • Page 9 • Connect conductors to the main circuit terminals in the conductor connection area as shown in Figs. 5 - 7. Fig. 5 Conductor (include screw) connection area (AR208S, AR212S, AR216S, AR220S, AR212H, AR220H) TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 10 Fig. 6 Conductor (include screw) connection area (AR325S, AR332S, AR316H, AR320H, AR325H, AR332H) TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 11 Fig. 7 Conductor (include screw) connection area (AR440S) Use a busbar support to hold conductors securely at distance L as shown in Fig. 8 and Table 2. Such a support will help preventing the conductors and main circuit terminals from being deformed or damaged due to a large electromagnetic force caused by any fault current. Use a high-quality insulating material for a support and secure enough insulation distance.
  • Page 12 The following procedure makes it easy to make connections with plug-in tab terminals (#187) of position switches, control circuit terminals, and auxiliary switches. (1) Draw out the breaker body to the removed position, and remove it using an optional lifter or lifting plate. Refer to sections 4-2-2 and 2-1-2. (2) If the ACB is equipped with the control terminal block cover, loosen both the cover fixing screws and remove the cover.
  • Page 13: General

    4 Pole ACBs without Neutral phase protection cannot be applied to “IT” type earthing systems, which do not include a neutral. Please contact NHP for DC application ACBs. AGR OCRs cannot be used with DC currents. NEMA / ANSI rated AR ACBs are not UL Certified. NEMA / ANSI ratings are shown for markets outside of North America, or for marine use, using NEMA ratings.
  • Page 14 4 Pole ACBs without Neutral phase protection cannot be applied to “IT” type earthing systems, which do not include a neutral. Please contact NHP for DC application ACBs. AGR OCRs cannot be used with DC currents. NEMA / ANSI rated AR ACBs are not UL Certified. NEMA / ANSI ratings are shown for markets outside of North America, or for marine use, using NEMA ratings.
  • Page 15 Use the ACBs in the environmental conditions specified in Table 5. Table 5 Operating environment Do not perform dielectric withstand/insulation resistance tests under non specified conditions. This may cause a malfunction. Table 6 shows the dielectric withstand voltage and the insulation resistance of the ACBs Table 6 Dielectric withstand voltage and insulation resistance The above data applies to new ACBs.
  • Page 16 Table 8 shows applicable current of the ACBs. The applicable current varies depending on the ambient temperatures. Table 8 Dependence of applicable current on ambient temperature Notes: For AR208S, AR212S and AR216S, it is assumed that main circuit terminals are of horizontal type at both the line and load sides. For other types, it is assumed that main circuit terminals are of vertical type at both the line and load sides.
  • Page 17: Parts And Functions

    3-2 Parts and Functions Fig. 12 provides a general view of the ACB. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 18 TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 19 TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 20: Circuits And Ratings

    Standard shunt trip coil circuit (OPTIONAL). This circuit is not valid when double shunt coils or shunt and UVT coils are to be fitted together on a single ACB. • Standard UVT circuit (OPTIONAL). This circuit is not valid when double shunt coils or shunt and UVT coils are to be fitted together on a single ACB. Contact NHP for a separate wiring diagram.
  • Page 21 Figure 17: Motor changing, shunt trip and UVT trip circuit MOTOR CHARGING CIRCUIT *4, *5 SHUNT TRIP UNDER VOLTAGE TRIP CIRCUIT Single phase only! Three phase connection will result in damage Figure 18: Auxiliary switch and position switch terminals AUXILIARY SWITCH (4 C/O STANDARD) POSITION SWITCH Figure 19: Terminal number and function of auxiliary and position switches TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 22 (indent stock), AC220V (indent stock), AC240V, DC24V, DC48V (stock items), DC100V trip device power (indent stock), DC110V (indent stock). NOTE: Double shunt trip coils are short time rated only! Contact NHP for available OFF switch voltages and special wiring details. The standard wiring diagram does not apply! Long time delay trip (LT), Short time delay (ST), instantaneous trip (INST/MCR) and Ground fault trip (GF) alarm contact indication.
  • Page 23 Table 9-2 Terminal functions and circuit symbols Symbol Meaning Symbol Meaning S1 - S4 Current sensors (Conversion ratio: CT rated primary current ICT (A)/150 Latch release coil CT1 - CT3 Power supply CT (Provide power to the overcurrent trip device when Shunt trip device control power is lost.) Magnet hold trigger...
  • Page 24 Table 13 Ratings of auxiliary and position switches *1: Using b-contact results in contact chatter of 20 ms or less when the ACB opens or closes. *2: Do not apply different voltages to contacts of a switch. *3: Min. applicable load: DC5V/1 mA *4: AC cosθ...
  • Page 25: Operation

    4. OPERATION 4-1. Charging and Opening operation Never touch live terminal parts. Otherwise, electric shock may result. Do not force down the charging handle after completion of manual charging operation. Doing so may cause a malfunction. The permissible operating voltage of the spring charging motor is 85 to 110% of the rated ac voltage or 75 to 110% of the rated dc voltage. Be sure to supply a voltage within the above ranges to the motor.
  • Page 26: Closing Operation

    4-1-2. Closing operation The ACB closing operation is not permitted unless all of the following conditions are met. 1) The charge indicator (Fig. 20 ) shows "CHARGED". 2) The position indicator (Fig. 20 ) shows "CONN.", "TEST" or "ISOLATED" (a halfway position not permitted). 3) The draw-out handle is not inserted in the draw-out handle insertion hole(Fig.
  • Page 27: Motion Of Operation Mechanisms

    4-1-5. Motion of operation mechanisms Figs. 21 - 24 illustrate the motion of the charging and ON-OFF mechanisms. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 28 TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 29: Draw-Out And Insertion Operation

    4-2. Draw-out and Insertion Operation 4-2-1. General The draw-out type ACB consists of the breaker body and the draw-out cradle. The main and control circuit terminals are installed on the draw-out cradle, which permits you to draw out and inspect or service the breaker body without the need for removing wiring from the terminals. The draw-out mechanism allows you to move the breaker body to any of the four positions as shown in Fig.
  • Page 30: Draw-Out Operation

    4-2-2. Draw-out operation Never touch live terminal parts. Otherwise, electric shock may result. Do not leave the ACB body in the removed position. The weight of the ACB may cause serious injury. If the ACB has the breaker fixing bolts, be sure to loosen the bolts on both sides before draw-out operation. Otherwise, damage to the ACB may result. Make sure the draw-out cradle is secured with mounting screws before drawing out the breaker body.
  • Page 31: Moving The Breaker Body From The Test Position To The Isolated Position

    4-2-2-2. Moving the breaker body from the TEST position to the ISOLATED position 1) Open the ACB. (If the ACB remains closed, the draw-out handle (Fig. 26 ) cannot be inserted). 2) Press the release button (Fig. 26 ). The release button will be locked depressed. 3) Unlock the position lock lever (Fig.
  • Page 32: Putting The Breaker Body Back To The Isolated Position

    4-2-3-1. Putting the breaker body back to the ISOLATED position 1) Make sure the draw-out cradle (Fig. 26 ) is secured with mounting screws. 2) Push the rail stoppers (Fig. 26 ) outward on both sides of the draw-out cradle to unlock the draw-out rail (Fig. 26 ), and then uphold and pull out the rail until it stops.
  • Page 33: Contact Status Of Auxiliary And Position Switches

    4-2-4. Contact status of auxiliary and position switches Tables 17 and 18 show the contact status of auxiliary switches and position switches respectively. Table 17-1 Contact statues of auxiliary switches Table 17-2 Contact statues of auxiliary switches (When pursuant to ship classification society rules) Table 18 Contact statues of position switches * "Inserted"...
  • Page 34: On-Off Button Cover Locking Procedure

    4-3. ON-OFF Button Cover Locking Procedure Lock the button cover using a padlock with ø6 shackle (up to 3 padlocks can be used) as shown in Fig. 29. The ON-OFF button cover is locked and the ON and OFF buttons cannot be operated.
  • Page 35: Position Lock Lever Locking Procedure

    4-5. Position Lock Lever Locking Procedure 1) Move the breaker body to the desired position (CONN, TEST or ISOLATED). 2) Pull out the position lock lever shown in Fig. 31. 3) Lock the position padlock lever using a padlock with ø6 shackle (up to 3 padlocks can be used) as shown in Fig. 31. This prevents the draw-out handle from being inserted into the draw-out handle insertion hole, i.e., the breaker position cannot be changed.
  • Page 36: Overcurrent Release (Ocr)

    Note 3: Required for ground fault protection for 3-poles ACB on 3-phase, 4-wire systems. Note 4: Micro-load (very low current and voltage) switch assembly arrangement available. Refer page 38 for configuration details. ¶: Contact NHP for details. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 37 AR Air Circuit Breaker – Over Current Release (OCR) Specification Featuring a wide range of standard features and specialised options, the Terasaki TemPro / AGR overcurrent release range is suitable for commercial, industrial and marine applications. The OCR types are divided into two performance ranges; the TEMPro PLUS (AGR21) and TEMPro PREMIER (AGR31).
  • Page 38 AR Air Circuit Breaker – TemPro PLUS and TemPro PREMIER appearance OCR control voltage: Confirm the terminal connections to match the indicated control voltage. Refer to page 9 - XX for terminal OCR protection curve: Can be “L” general feeder designations.
  • Page 39 Specifications: AR ACBs with AGR21C and AGR31C Over Current Releases Main features at a glance: Basic Protection Single contact Application Modbus & indicator Control OCR type Cat No. protection LCD monitoring (only data LTD, STD, power curve monitoring) INST INST, GF AGR-21C-L-PG Current (A) required...
  • Page 40 Specifications: AR ACBs with AGR21C and AGR31C Over Current Releases Table 2 Protective / Alarm function OCR Characteristic curve AGR “C” series AGR21 C and AGR31 C L, R (80% to 100%) x I in 1% step (80% to 115%) x I in 1% steps Long Time delay trip (LTD) (0.5 to 30.0) sec in 0.01 sec steps...
  • Page 41 Specifications: AR ACBs with AGR21C and AGR31C Over Current Releases Table 3 AGR-21C – L and AGR31 C – L L characteristic for general feeder (general power distribution and transformer protection) AGR-21C – R and AGR31 C – R R characteristic for general feeder (3 characteristics conforming to IEC60255) AGR-21C –...
  • Page 42 Specifications: AR ACBs with AGR21C and AGR31C Over Current Releases Protection operation & indication chart: OCR Protective characteristic AGR21C L / R AGR21C S AGR31C L / R AGR31C S Contact Modbus Contact Modbus Contact Modbus Contact Modbus Function display Output output display...
  • Page 43 AR Air Circuit Breaker – OCR release specification Standard features description Application curve Standard feature Description LTD trip Adjustable overload protection area trip √ √ √ STD trip Adjustable short circuit protection area trip (with intentional delay) √ √ √ INST trip Adjustable short circuit protection area trip (with NO intentional delay) √...
  • Page 44 (TemPro PREMIER) Notes: All special application functions are available on an indent basis. For further information on special application functions contact NHP. ✓ = option available ✗ = not available. i = Available on indent only. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 45 Each specific voltage range of 400 to 450 VAC or 460 to 700 VAC has a unique resistor card, and the OCR also needs specific voltage programming. ACBs with AGR31 OCR’s must be initially set up by NHP, and the mains voltage must be specified to NHP at the time or ordering.
  • Page 46: Characteristics

    5-2 Characteristics 5-2-1 curve OCR setting: TemPro PLUS (AGR-21C-L) Setting item Symbol Setting range CT rated primary current [I ] × (0.5 - 0.63 - 0.8 - 1.0) (A) Applied [I ] (A) 1000 1250 1600 2000 2500 3200 4000 ] ×...
  • Page 47: L Curve Ocr Setting: Tempro Plus (Agr-31C-L)

    5-2-2 curve OCR setting: TemPro PLUS (AGR-31C-L) Setting item Symbol Setting range CT rated primary current [I ] × (0.5 - 0.63 - 0.8 - 1.0) (A) Applied [I ] (A) 1000 1250 1600 2000 2500 3200 4000 ] × 0.5 1000 1250 1600...
  • Page 48: L Curve Ocr Setting: Tempro Plus (Agr21C-L) And Tempro Premier (Agr-31C-L)

    5-2-3 curve OCR setting: TemPro PLUS (AGR21C-L) and TemPro PREMIER (AGR-31C-L) Notes BOLD values are default settings. A change in rated current setting results in changes in long time delay trip, short time delay trip, instantaneous strip, pre-trip alarm and negative-phase sequence protection trip pickup current settings accordingly.
  • Page 49 5-2-3 curve OCR setting: TemPro PLUS (AGR21C-L) and TemPro PREMIER (AGR-31C-L) Ampere sensing coils available for AGR-21C-L and AGR-31C-L CT Amps Rated current [In] (A) CT Amps Rated current [In] (A) CT Amps Rated current [In] (A) Type Type Type x 0.5 x 0.63 x 0.8 x 1.0 x 0.5 x 0.63 x 0.8...
  • Page 50: Protection Characteristics L Characteristic Ocr's

    5-2-3-1 Protection characteristics L characteristic OCR’s TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 51: R Curve Ocr Setting: Tempro Plus (Agr-21C-R)

    5-2-4 curve OCR setting: TemPro PLUS (AGR-21C-R) Setting item Symbol Setting range CT rated primary current [I ] × (0.5 - 0.63 - 0.8 - 1.0) (A) Applied [I ] (A) 1000 1250 1600 2000 2500 3200 4000 ] × 0.5 1000 1250 1600...
  • Page 52: R Curve Ocr Setting: Tempro Premier (Agr-31C-R)

    5-2-5 curve OCR setting: TemPro PREMIER (AGR-31C-R) Setting item Symbol Setting range CT rated primary current [I ] × (0.5 - 0.63 - 0.8 - 1.0) (A) Applied [I ] (A) 1000 1250 1600 2000 2500 3200 4000 ] × 0.5 1000 1250 1600...
  • Page 53: R Curve Ocr Setting: Tempro Plus (Agr21C-R) And Tempro Premier (Agr-31C-R)

    5-2-6 curve OCR setting: TemPro PLUS (AGR21C-R) and TemPro PREMIER (AGR-31C-R) Notes BOLD values are default settings. A change in rated current setting results in changes in long time delay trip, short time delay trip, instantaneous strip, pre-trip alarm and negative-phase sequence protection trip pickup current settings accordingly.
  • Page 54 5-2-6 curve OCR setting: TemPro PLUS (AGR-21C-R) and TemPro PREMIER (AGR-31C-R) Ampere sensing coils available for AGR-21C-R and AGR-31C-R CT Amps Rated current [In] (A) CT Amps Rated current [In] (A) CT Amps Rated current [In] (A) Type Type Type x 0.5 x 0.63 x 0.8 x 1.0 x 0.5 x 0.63 x 0.8...
  • Page 55: Protection Characteristics R Characteristic Ocr's

    5-2-6-1 Protection characteristics R characteristic OCR’s TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 56 5-2-6-1 Protection characteristics R characteristic OCR’s Protection TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 57 5-2-6-1 Protection characteristics R characteristic OCR’s TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 58: S Curve Ocr Setting: Tempro Plus (Agr-21C-S)

    5-2-7 curve OCR setting: TemPro PLUS (AGR-21C-S) Setting item Symbol Setting range Rated current CT rated primary current [I ] × (0.5 - 0.63 - 0.8 - 1.0) (A): is fixed to a single setting (FACTORY SET ONLY) Mode select Trip / OFF pickup current ] ×...
  • Page 59: S Curve Ocr Setting: Tempro Premier (Agr-31C-S)

    5-2-8 curve OCR setting: TemPro PREMIER (AGR-31C-S) Setting item Symbol Setting range Rated current CT rated primary current [I ] × (0.5 - 0.63 - 0.8 - 1.0) (A): is fixed to a single setting (FACTORY SET ONLY) Mode select Trip / OFF pickup current ] ×...
  • Page 60: S Curve Ocr Setting: Tempro Plus (Agr-21C-S) And Tempro Premier (Agr-31C-S)

    5-2-9 curve OCR setting: TemPro PLUS (AGR-21C-S) and TemPro PREMIER (AGR-31C-S) Notes BOLD values are default settings. Cannot be changed by the user The operating time (t) at a long-time delay (or pre-trip alarm) pickup current setting is given by: t = 1.44 ×...
  • Page 61: Protection Characteristics S Characteristic Ocr's

    5-2-9 curve OCR setting: TemPro PLUS (AGR-21C-S) and TemPro PREMIER (AGR-31C-S) Ampere sensing coils available for AGR-21C-S and AGR-31C-S OCR rated primary Applicable range of generator OCR rated primary Applicable range of generator Type current rated current Type current rated current ] (A) ] (A) ] (A)
  • Page 62: How To Display Measurements And Make Settings

    OCR type number Press the SET button using the tip of a ball point pen or the black NHP setting tool supplied with the ACB. DO NOT use sharp of pointed objects as they will damage the unit. Inbuilt power meter for TEMPro...
  • Page 63: How To Display Measurements And Make Settings

    OCR settings. Close the OCR cover after viewing measurements or changing settings. After setting changes are made, it is recommended that the settings be checked with a OCR checker type ANU-1 (optional). Please contact NHP for availability.
  • Page 64: Available Screens

    5-3-2. Available screens The available screens for the AGR-21C and AGR-31C are shown in the figure below. Press the MENU button to progress to the next screen. Monitor 1 screen (MONI) 5-3-3 This is the initial screen that appears when power is applied to the OCR. Various current values can be viewed on this screen Monitor 2 screen (MONI IVP) 5-3-4 (AGR-31C only) Various current values, line voltage, phase voltage, power, power demand, electrical energy, power factor and...
  • Page 65: Monitor 1 Screen

    5-3-3. Monitor 1 screen The Monitor 1 screen sub screens are shown below. Press the MENU button to progress to the next screen. Table 22: Monitor 1 screen menu and descriptions Number Subscreen item Description Tolerance Max. phase current (present value) Initial display Only presented when the ground fault function Ground fault current (present value)
  • Page 66: Monitor 2 Screen (Agr-31C Only)

    5-3-4. Monitor 2 screen (AGR-31C only) The Monitor 2 screen sub screens are shown below. Press the MENU button to progress to the next screen. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 67 5-3-4. Monitor 2 screen (AGR-31C only) Table 23: Monitor 2 screen menu and descriptions Number Subscreen item Description Monitor 1 screen See 5-3-3 First phase current (present value) Second phase current (present value) Third phase current (present value) Neutral current (present value) Displayed when the ACB is a 4-pole type Ground fault current (present value) Only presented when the ground fault function is...
  • Page 68: Monitor 3 Screen (Agr-31C Only)

    5-3-5. Monitor 3 screen (AGR-31C only) The Monitor 3 screen sub screens are shown below. Press the MENU button to progress to the next screen. Table 24: Monitor 3 screen menu and descriptions Number Subscreen Item Description Total Harmonic Distortion Fundamental Total Harmonic Distortion Root Mean Square Harmonic current Harmonic current...
  • Page 69: Setup Screen

    To cancel a setting before saving press left arrow once and the flashing variable/setting will stop. WARNING! Do not use a sharp object to save changes, as it may damage the 'set' button. Use a rounded ball point pen or the black plastic setting tool supplied by NHP. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 70 5-3-6. Setup screen Table 25: Setup screen menu and setting range Number Subscreen item 1 Setting change Setting range / remarks Main circuit rated voltage Disabled Fixed CT rated primary current Disabled Fixed Main circuit rated power Disabled Determined (calculated with main circuit rated voltage and rated current [In]) Number of poles Disabled...
  • Page 71: Reset Screen

    Do not use a sharp object to save changes. It may damage press left arrow once and the the 'set' button. Use a rounded ball point pen or the black flashing variable/setting will stop plastic setting tool supplied by NHP. Table 26: Reset screens menu and descriptions Number Subscreen item...
  • Page 72: Setting 1 Screen

    WARNING! Do not use a sharp object to save changes. It may damage the 'set' button. Use a rounded ball point pen or the black plastic setting tool supplied by NHP. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 73 5-3-8. Setting 1 screen Table 26: Setting 1 screen menu and setting range Number Subscren item Setting range / remarks Monitor screen Rated current (L/R characteristic) [ICT] × (0.5-0.63-0.8-1.0) (A) Rated current (S characteristic) [ICT] × (0.5 to 1.0) (A): Fixed to a single point in increments of 1A Long Time Delay trip Trip / Off Long Time Delay trip characteristic...
  • Page 74 OCR setting example – ST Short Time Delay and INST Instantaneous “SET” button to confirm a setting “MENU” Moves through the varuous main setting menu’s Toggle selects sub-menu items from the “ENT” Enter button selects a range different main menu selections. of variable date to be changed Also, setting of variable values such as base current, LT, ST or INST etc.
  • Page 75 OCR setting example – I base current and Long Time Delay Long Time Delay setting If the ACB current rating needs to be changed by more than 20%, it will be necessary to reduce or increase the I base current setting first. The base current can be set to: 0.5, 0.63, 0.8 or 1.0 x I is the ampere rating of the current sensing Rogowski coils on each phase of the ACB.
  • Page 76: Setting 2 Screen

    5-3-9. Setting 2 screen The Reset screen sub screens are shown below. Press the MENU button to progress to the next screen. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 77 5-3-9. Setting 2 screen Table 27: Setting 2 screen menu and setting range Number Subscreen item Setting range / Remarks Monitor screen Ground Fault trip mode TRIP / AL / OFF Ground Fault trip pickup current [ICT] × (10% to 100%) (A), in steps of 1%, Tolerance: ±20% Ground Fault trip pickup time (0.1 to 2.0) (sec) in steps of 0.1 sec Ground Fault trip I...
  • Page 78 5-3-9. Setting 2 screen Table 27: Setting 2 screen menu and setting range Number Subscreen item Setting range / Remarks Reverse Power Trip pickup time (2.5 to 20.0 sec) at 100% of [PR], in steps of 0.01sec, Tolerance: ±20%,+0.15s–0s Negative-phase sequence protection mode TRIP / AL / OFF Negative-phase sequence protection pickup current [In] ×...
  • Page 79: Maintenance Screen

    5-3-10. Maintenance screen The Maintenance screen sub screens are shown below. Press the MENU button to progress to the next screen. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 80 5-3-10. Maintenance screen Table 28: Maintenance screen menu and setting range Number Subscreen item Setting range / Remarks Monitor Screen Maintenance test screen Maintenance test LT screen “LT” flashes Maintenance test LT Trip screen “TRIP” flashes Maintenance test LT No Trip screen LT trip test function with no trip.
  • Page 81: Ocr Function Check

    5-4. OCR Function Check Use the following procedure to perform OCR function check. 1) Open the ACB and draw out the breaker body to the TEST position. Make sure control power is connected to power the OCR. 2) Change settings according to the test as shown in Table 30. 3) To check the ACB along with the OCR, close the ACB before applying a test signal.
  • Page 82: Maintenance, Inspection And Parts Replacement

    NHP is unable to sell most 'loose' parts due to safety and quality control reasons. • A thorough inspection will be done by NHP. A complete overhaul would be done on NHP premises, where experienced staff can service & test the ACB.
  • Page 83: Inspection Procedures (Information Only, Contact Nhp For Service)

    Tables 34 and 35 respectively. Information you are requested to state If you want NHP to take action about any issue, contact us while providing us the information shown in Table 34 below. Our contact details are shown at the end of this manual.
  • Page 84 If foreign matter or dust is accumulated, use vacuum cleaner to remove foreign matter of dust and mechanism wipe off with dry, clean cloth. If any parts are missing or damaged or springs are broken, contact NHP. See 6-2-7.
  • Page 85 With ACB closed, check that the moving core results in ACB being opened slowly, and releasing the moving core results in the motion core being restored smoothly. If not, replace SHT - contact NHP. After inspection, discharge closing springs. Disconnect hand connector (red) and, using tester, measure coil resistance between terminals and make sure it is 1.8 - 2.2 Ω.
  • Page 86: Troubleshooting Flowcharts

    7-0 Troubleshooting flowcharts Figs. 86 - 90 are troubleshooting flowcharts where typical troubles and remedial actions are shown. Abnormal System alarm occurs Check operating mechanism Is "SYS2" indicated? Remove cause. See No. 12 in Table 35. Normal Abnormal Check control ci r cuit and MHT. Is "SYS1"...
  • Page 87 7-0 Troubleshooting flowcharts Fig. 88 Remedial actions against a symptom of "closing impossible" TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 88 7-0 Troubleshooting flowcharts Fig. 89 Remedial actions against a symptom of "opening impossible" Fig. 90 Remedial actions against an overheat TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 89: Tripping Options

    8-1-1 Shunt Trip – AVR-1C single coil type Single coil shunt trip coils are designed to remotely trip the ACB, are continuously rated. The coils are available in different voltages and are factory fit accessories or an NHP service site visit. Rated voltages...
  • Page 90: Shunt Trip - Avr-1Cd Double Coil Type

    The wiring diagram below represents how the double coil shunts are wired and internally connected. This wiring will vary for ACBs with TemPro Premier (AGR31) OCRs using the double shunt, mainly in the area of the blue connector below. Refer NHP for wiring in this case.
  • Page 91: Under Voltage Trip - Type Aur-1C

    8-1-3 Under Voltage Trip – type AUR-1C Under Voltage Trip (UVT) accessory – for remote tripping an ACB The Under Voltage Trip accessory (UVT) monitors a single phase and trips the ACB when the control voltage drops below its opening voltage threshold. When the control voltage is restored to the pick-up voltage, the ACB can be closed. The pick-up voltage is fixed to 85 % of the rated voltage.
  • Page 92: Acbs With A Shunt & Uvt

    8-1-4 ACBs with a Shunt & UVT 8-1-4-1 ACBs with a 2 independent shunt trip & control circuit Shunt trip via MHT and UVT When a standard AVR-1C shunt trip is installed, a UVT cannot be installed. The use of a special shunt trip controller to operate the ACBs MHT provides a solution to allow shunt tripping to occur, and a UVT to be installed.
  • Page 93: Trip, Alarm And Status Indication

    8-1-5 Trip, Alarm and Status Indication Auxiliary switches The auxiliary switches operate during the ACB ON/OFF operation. Connections to the switches are made via screw terminals as standard, with a spade connection types and indent option. The auxiliary switches for draw-out type ACBs operate in the CONNECTED and TEST positions. Auxiliary switches for ACBs operate in the CONNECTED position only.
  • Page 94 8-1-5 Trip, Alarm and Status Indication Position Switches A position switch operates to give an indication of the ACB body position within the carriage: CONNECTED, TEST, ISOLATED, or INSERT There are two contact ▪ arrangements: 2c and 4c. ▪ Connections to the switches are made via screw type terminals.
  • Page 95: Ocr Indication Of Trip, Alarm, Status And System Alarm & Communications

    8-1-6 OCR Indication of Trip, Alarm, Status and System Alarm & communications 1. Indication via a single contact within the OCR When the LT, ST, INST or GF trip function is activated, an output is generated via a N/O contact. 2.
  • Page 96: Spring Charged Operation - Via Manual Racking, Motor Charging, Lrc Operation

    8-1-7 Spring charged operation – via Manual racking, Motor charging, LRC operation Manual charging type For this type of ACB, the closing springs are charged by means of the spring charging handle. ON/OFF operation of the ACB is performed by means of ON/OFF buttons on the ACB.
  • Page 97: Motor Data, Spring Charged Operation, Lrc Closing Data

    0.12 Notes The above LRC closing command current is the current draw by the Latch Release Coil. Refer NHP for 415 VAC motor options (240VAC motor + control transformer: #ARMOT415ACAGR3) Split voltage specification (separate motor and LRC operation) The motor control circuit can be manufactured for two methods of operation. The standard motor control circuit configuration requires that the motor and LRC (closing coil) voltage be common due to the shared wiring to terminal 22.
  • Page 98: Interlocking - Cable Type

    For example the hardware supplied for a ‘type C’ interlock is only suitable for use in a two way system. The hardware supplied for a ’type B’ interlock is only suitable for that particular type, it can not be used for a ’type A’ system. Contact NHP for further info.
  • Page 99: Door Interlock

    ACB is in the ISOLATED position, the interlock is released, and the switchboard door can be opened. The breaker body cannot be inserted unless the switchboard door is closed. Contact NHP for more details if required. Door interlock outline dimensions and arrangement drawing...
  • Page 100: Trapped Key Locks

    Using the same keys also allows interlocking between an ACB and other devices (such as a switchboard door). ACBs can be supplied, using our range of stocked NHP / Allen-Bradley ProSafe trapped key interlocks. Other brands such as Fortress CL, Castell or Ronis locks can also be supplied on request.
  • Page 101: Other Acb Locking Methods

    8-1-11 Other ACB Locking methods Padlocking ON OFF pushbutton An ON-OFF button cover prevents inadvertent or unauthorised operation of the ACB ON or OFF button. It can be locked with up to three padlocks with ø 6 mm hasp. Padlocks are not supplied. Button covers are supplied fitted to ACBs as standard. The padlock facility for the ACBs pushbuttons, is intended to prevent unauthorised operation of the buttons.
  • Page 102: Door Flange

    8-1-12 Door flange A door flange can be used as a decoration panel that covers the cutout on the switchboard panel, and provides IP 41 protection with the gasket fitted. Only drill the 10 hole indicated below to achieve IP 41. IP 55 Door cover An IP cover provides an IP 55 grade of protection as defined in IEC 60529.
  • Page 103: Control Wiring

    8-2 Control Wiring 8-2-1 AGR21 Control wiring – standard configuration TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 104: Agr21 Control Wiring - With Spring Charge Switch Fitted

    8-2-2 AGR21 Control wiring – with spring charge switch fitted TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 105: Agr21 Control Wiring - Split Voltage Configuration (Separate Motor & Lrc Voltage)

    8-2-3 AGR21 Control wiring – split voltage configuration (Separate motor & LRC voltage) TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 106: Agr31 Control Wiring - Standard Configuration

    8-2-4 AGR31 Control wiring – standard configuration TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 107: Agr31 Control Wiring - Spring Charge Switch Fitted

    8-2-5 AGR31 Control wiring – spring charge switch fitted TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 108: Agr31 Control Wiring - Split Voltages For Motor And Lrc (Latch Release Coil)

    8-2-6 AGR31 Control wiring – split voltages for motor and LRC (Latch Release Coil) TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 109: Ground Fault Protection For Agr-21C-L/Rand Arg-31C-L/R/S

    If the ACB is reverse fed, the external CT (L) is to face the line side of the ACB. This circuit diagram is not suitable for Terasaki RESTRICTED EARTH FAULT. Contact NHP for CT dimensions. Grounding of the L terminal on 4 CTs is not required.
  • Page 110: Current Transformer For Neutral Line (External Mounting)

    8-3-1 Current transformer for Neutral line (external mounting) When using a 3-pole ACB with the ground fault protection function to protect a 3-phase, 4-wire system against ground fault, install an appropriate current transformer (CT) to the neutral line of the system. TERASAKI can provide this neutral line CT as an option.
  • Page 111: Ref Restricted Ground Fault Protection For Arg-31C-L/R Only

    In addition to the standard unrestricted ground fault option, the TemPro Premier (AGR31C-L/R types) can also offer restricted earth fault (REF) protection as a option. This is an indent option and may not be available with certain OCR special functions. Please consult NHP before selecting REF protection.
  • Page 112: Ref Restricted Ground Fault Protection For Arg-31C-L/R Only

    8-3-2 REF Restricted Ground fault protection for ARG-31C-L/R only The wiring diagram below (Figure 8.3.3) shows the standard diagram with the addition of terminals 17 and 25 which are used for the REF alarm contact indication. NOTE: this REF alarm contact will have momentary operation (less than 40ms) if control power is not wired to the OCR. Figure 8.3.3 Restricted Earth Faults –...
  • Page 113: Ref Restricted Ground Fault Protection For Arg-31C-L/R Only

    8-3-2 REF Restricted Ground fault protection for ARG-31C-L/R only Quick Calculation: If Max phase current + GFT current ≤ 2 x bias current; then rule 1 is true. Assume, Max phase current + GFT current = 2 x bias current Therefore, Max phase current + GFT current = 4800A Therefore rule 1 is satisfied.
  • Page 114: Ref Restricted Ground Fault Protection For Arg-31C-L/R Only

    8-3-2 REF Restricted Ground fault protection for ARG-31C-L/R only Example 3: The ACB from Example 2 now detects a decrease in the max phase current + the line side GFT current. AR216 with ICT = 1600A NEW REF pickup current = 1600A (FROM EXAMPLE 2) REF bias current (default setting) = 1.5 x ICT, therefore 1.5 x 1600 = 2400A Quick Calculation: If Max phase current + line side GFT current >...
  • Page 115: Modbus Communications

    This MODBUS communications facility is only capable of data monitoring, not ACB control. For protocols other than MODBUS an additional communications interface (such as Anybus) can be mounted externally to the ACB - refer NHP. Note: The AR ACB MODBUS communications function requires OCR control power to function.
  • Page 116 8-4-1-1 Data Variables available for LCD Display and Communication The data variables that can be displayed and communicated are shown in the table below: Data Variable AGR21CL AGR21CS AGR31CL AGR31CR AGR21CR AGR31CR Current - Ia √ √ √ √ Current - Ib √...
  • Page 117: Modbus Wiring

    8-4-1-2 Modbus Wiring The RS-485 interface fitted to the top of the carriage allows MODBUS communications enabled ACBs to be ‘daisy chained’. Below, the MODBUS master can an industrial PC, however this will depend on the user application. The wiring scheme below facilitates data monitoring only. Allen-Bradley Touchscreen Industrial PC Terasaki AR ACBs Terminator resistor (R)
  • Page 118 8-4-1-3 T2ED Circuit Breaker External Display Features • One T2ED meter model Cat No: T2ED00D02NNA • For TemBreak XOW MCCBs rated 16A to 1000A or any TemPower AR ACB. • Works as a master/slave meter • The T2ED display is the master, the MCCB/ACB, the slave •...
  • Page 119 8-4-1-4 External Meter and Building Management System Communications Options Modbus RS485 Monitoring application 1 • One T2ED display required for each MCCB or ACB • Modbus RS485 standard between each MCCB/ACB and T2ED display • T2ED external displays can be daisy chain connected •...
  • Page 120 8-4-1-5 T2ED installation examples ACB Connection diagram - Single T2ED external display meter connection to TemPower 2, AR ACB: TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 121: Wiring Details

    8-4-1-6 T2ED user connection Wiring details: Customer wiring Wiring from MCCB 06 (SIG 16 (SIG -) 26 (COM) R: Install a terminator between “TRX + ve” and “TRX - ve“ for COM2 furthest from the gateway. Fig. 7 Connection diagram R: Install a terminator between “TRX +ve”...
  • Page 122: Module Layout

    8-4-1-7 Communications Gateways - Anybus NHP Anybus modules can connect non-networked device to any major fieldbus or industrial Ethernet. The module performs an intelligent conversion between the serial protocols (Modbus RTU) of Terasaki Air Circuit Breaker to Ethernet/TCP. All data between the fieldbus and the serial network is stored in an internal memory buffer inside the Anybus module.
  • Page 123 Page 1 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus Function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR Close operation ON=close operation, OFF=N/A Open operation ON=open operation, OFF=N/A ( Reserved )
  • Page 124 Page 2 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus Function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR Latest alarm history - GF alarm status 1=active, 0=N/A ( Reserved ) ( Reserved )
  • Page 125 Page 3 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Modbus Line Address Address Length / Bit TERASAKI Item Name Units Notes 21CL Remarks Function code 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR 1=1[kVA], 0 - 65535 40136 apparent power demand- Sd [kVA] 1=0.1[kVA], 0 - 65535...
  • Page 126 Page 4 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus Function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR 3=TRIP, 1=ALARM, 0=OFF NS - TRIP/ALARM/OFF 3=TRIP.
  • Page 127 Page 5 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Modbus Line Address Address Length / Bit Function TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) code 21CR 40177 LT - Ir (High) 1=1[A] 40178 LT - Ir (Low)
  • Page 128 Page 6 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR 40198 REF Bias Limit 1=0.1[%] 40199 IREF bias 1=1[A] (write [% *Ict])
  • Page 129 Page 7 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus Function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR [kVarh 40245 total reactive energy (+) - EQ in (High-High) 1=1[kVarh] 40246 total reactive energy (+) - EQ in (High-Low)
  • Page 130 Page 8 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus Function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR 40308 ( Reserved ) 40309 ( Reserved ) 40310 ( Reserved )
  • Page 131 Page 9 8-4-1-8 Modbus Memory Map – AGR21C / AGR31C Reference Command Line Address Address Length / Bit Modbus Function code TERASAKI Item Name Units Notes 21CL Remarks 21CS 31CS 31CL 31CR (DEC) (DEC) 21CR 41073 1072 1 alarm history 09 - fault alarm cause 41074 1073 alarm history 09 - fault alarm value...
  • Page 132 8-4-1-9 Trip and Alarm history details using AGR21_C or AGR31_C OCRs with Modbus TRIP History Modbus Addresses HISTORY No. Trip Cause Trip Value Trip Time History 01 (most recent) 40257 [256] 40258 [257] 40259 [258] History 02 40263 [262] 40264 [263] 40265 [264]...
  • Page 133: Detailed Dimensions

    8-5 Detailed dimensions TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 134 8-5 Detailed dimensions AR208S, AR212S, AR216S, AR220S, AR212H, AR216H, AR220H Draw-out types TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 135 8-5 Detailed dimensions AR325S, AR332S, AR316H, AR320H, AR325H, AR332H Draw-out types TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 136 8-5 Detailed dimensions AR325S, AR332S, AR316H, AR320H, AR325H, AR332H Draw-out types TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 137 8-5 Detailed dimensions Types: AR440S Draw-out type CP: ACB Front cover center line Notes: 1) Conductors including connecting bolts should be separated min-7mm from Draw-out arm. 2) Panel cut should be 339 mm not 335 mm when the door flange is used. Refer to page 9 - 49. If IP55 door flange is used refer page 9-49. •...
  • Page 138 8-5 Detailed dimensions AR440S Draw-out type TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 139 8-5 Detailed dimensions Notes: 1) Panel should be 339 mm not 335 mm when door flange is used. Refer to page 9 - 43. If IP 55 door flange is used see page 58. • N represents the neutral pole of 4-pole ACBs. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 140 8-5 Detailed dimensions AR650S, AR663S Draw-out types TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 141 Anti-corrosion treatment This treatment can be specified when the ACB is used in a corrosive atmosphere. Contact NHP for details. AR ACB main terminals have a 100% silver plating. Certain environments may cause only a discolouration which does not affect the terminal resistance, or actual corrosion may occur as in the case of HS environments for example.
  • Page 142 8-7 Technical data – dielectric strength, internal resistance, power consumption Notes: 1) Above figures are based on the calculation of 3 x I2R. For more information please contact NHP. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 143 Ambient temperature 40 °C, ACB in “Free air” as per standard. Notes: 1) Contact NHP for details. If different types of terminal arrangement are used for line and load sides refer to the ratings for the horizontal terminals. Front connection cannot be specified with the different types of terminal arrangement for line and load sides.
  • Page 144 8-8 Technical data – Temperature ratings For when the tempurature inside a switchboard is known TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 145 8-8 Technical data – Temperature ratings TemPower 2 busbar connection sizing The temperatures shown represent the °C ambient temperature inside a switchboard where the ACB is installed Busbars are to be of high conducting copper ▪ The maximum permissible busbar temperature is 100 °C ▪...
  • Page 146 8-8 Technical data – Temperature ratings TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 147: Service And Maintenance

    Depending on a customer accessory specification, NHP may supply a ‘non-standard’ ACB wiring connection. This means that the standard wiring diagrams found in typical NHP / Terasaki catalogues may not fully represent the control wiring schematic that is being supplied. In this case NHP issue a ‘NHP SR’...
  • Page 148 CT is required. If this CT (available from NHP) is not connected to the ACB, nuisance tripping may occur. If the external CT is not installed and ground fault protection is not required this function can be disabled. The direction the CT is facing in reference to the supply is important. Please refer to the diagrams below for installation recommendations.
  • Page 149 TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 150 XEC1640LS50 6300A AR663S XEC1640LS63 Stocked ACB instruction manual Customer to specify required quantity when ordering. Not supplied as standard, or refer NHP for PDF version. Description Cat No. TemPro Plus (AGR21B) Installation manual (hard copy version) ARAGR21BMANUAL TemPro Premier (AGR31B) Installation manual (hardcopy version)
  • Page 151 8-11 Accessories – not customer fit These accessories are fitted when an ACB is new, and being ordered from NHP, or if the ACB is already installed, will require NHP Service for installation. Accessory type Description NHP Service, Special order...
  • Page 152 New Zealand Service Report: When NHP is contacted to provide ACB service either in our own premises, or on-site, a typical service & test report is issued by the NHP service department, as shown on the following pages. TEMPOWER 2 AR ACB INSTALLATION MANUAL 2019...
  • Page 153: Service Report

    8-13 Service Report Prepared by ____________________________________ Service Report Number: _________________________________ ____________________________________ Site Address __________________________________________ Customer: ____________________________________ __________________________________________ Contact Person ____________________________________ Phone Number: ________________ Mobile ____________________ Cust. Order No: ____________________________________ Attendance date __________________________________________ Product type No. ____________________________________ Used as: __________________________________________ ITEM Inspection Points and findings Service - Notes Loose screws or bolts...
  • Page 154: Electrical Operation

    Trip / Alarm at 65% Note: 3 Phase Mk3 UVT is an alarm only UVT_____V AC/DC 18. OCR Calibration Use NHP SI /PI test Conducted OCR field test with pass result? (Y/N or N/A) & COMMS test sheet to complete Conducted secondary injection test with pass result? (Y/N or N/A) test.
  • Page 155: Front View

    8-14 Terasaki AR ACB identification Front view Control circuit terminal cover Position switch terminals Auxiliary switch terminals ARR Control circuit terminals Mal insertion device ON-OFF cycle counter Draw out carriage ON-OFF indicator Spring charge indicator Over Current Relay ON button OFF button Spring charge handle Breaker fixing bolts...
  • Page 156 8-14-1 AR ACB Labelling To help customers avoid incorrectly damaging the ACB the following labels are added: Above – attached to front cover caution label At right - Attached to ARR control terminal bock At right – Attached to OCR / Trip Unit At right –...
  • Page 157 In some cases customers will request specific functions that are not standard on the AR ACB. This can sometimes result in the NHP workshop modifying the internal wiring loom. When this is done a special wiring loom drawing is created by NHP and a copy of this drawing is supplied with the ACB.
  • Page 158: Installation

    The following installation procedure applies where the trapped key mounting hardware is already installed within the front of the ACB. If the hardware is not fitted, contact NHP service who an arrange to have this fitted. Trapped key interlock hardware has been pre-installed in NHP stock ACBs since around 2014, and in custom assembled ACBs, only when specified.
  • Page 159 8-15 Trapped key interlock fitting, where the mounting hardware is pre-installed Fit the PROSAFE KEY to the KEY SUPPORT BRACKET by Pan Head M6 x 10 screw. OPERATION CHECK • Push the OFF BUTTON and turn left the KEY then release hand, the OFF BUTTON can be hold pushed condition and can remove the KEY.
  • Page 160 NHP Electrical Engineering Products Pty Ltd A.B.N. 84 004 304 812 Head office: New Zealand 43-67 River Street 118a Carbine Road Richmond Mt Wellington VIC, 3121 Auckland 1060 AUSTRALIA NEW ZEALAND Tel: 1300 647 647 0800 647 647 www.nhp.com.au www.nhp-nz.com...

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