Amvac™ medium voltage vacuum circuit breakers installation and operation manual provided by northeast power systems, inc. (nepsi).
2 1val050601-mb rev c provided by northeast power systems, inc. (nepsi).
3 1val050601-mb rev c t able of c ontents foreword .............................................................................................................................................................. 4 introduction & safe practices .............................................................
4 1val050601-mb rev c foreword this booklet provides information for the medium voltage (5kv to 27kv) amvac tm indoor circuit breakers as described below. Note: not all sections of this bulletin appllies to all the types of amvac tm circuit breakers. For example, the racking and interlock sections o...
5 1val050601-mb rev c s afe p ractices : amvac™ circuit breakers are equipped with high energy electrical storage capacitors. The design includes several interlocks and safety features which help ensure safe and proper operating sequences. To ensure safety of personnel associated with installation, ...
6 1val050601-mb rev c r eceiving , h andling , and s torage : amvac™ circuit breakers are subject to complete factory production tests and inspection prior to packaging and shipment. The shipping package is designed to provide reasonable protection during shipment and to provide convenient handling....
7 1val050601-mb rev c caution always follow safe work practices when lifting the circuit breakers to protect the safety of personnel and equipment. Always inspect lifting hook for signs of wear or damage before use. Do not use a lifting hook that is damaged or worn. The lifting device (i.E. Hoist, w...
8 1val050601-mb rev c 2 accessories m anual t rip h andle : the manual opening handle (1) is designed to open the amvac circuit breaker manually. Insert the handle into the opening in the front panel (2) and turn it counter-clockwise until the circuit break- er opens. The manual opening handle shall...
9 1val050601-mb rev c i nsertion and r emoval this section describes the necessary steps for inserting and removing a circuit breaker to and from the switchgear’s “disconnect” position. Racking the circuit breaker to and from disconnect, test and connected positions is covered in the next section. T...
10 1val050601-mb rev c i nsertion : (refer to figure 1] for compartment detail, [appendix a] for breaker detail) 1. Open switchgear breaker compartment door [h] to its fully opened position. 2. Align lift truck left & right platform guides with switchgear latch openings. 3. Raise platform for easy i...
11 1val050601-mb rev c r acking : amvac™ circuit breakers are provided with three positive stop racking positions. “disconnect” position allows for (door open) manual opening only through the use of the manual opening handle (spring loaded) or operation through the use of the electrical close / open...
12 1val050601-mb rev c 2. Begin racking procedure using approved racking crank: a. Insert racking crank socket into breaker door access port and rotate until socket slides into position. B. Hold racking crank with left hand and depress position lever with right hand. C. Turn racking crank counter-cl...
13 1val050601-mb rev c c ircuit b reaker s tructure : (refer to figure 2) s tructure of the circuit breaker poles : the encapsulated poles are mounted on the rear flat section of the circuit breaker enclosure. The live parts of the circuit breaker poles are enclosed in cast resin and protected from ...
14 1val050601-mb rev c s torage capacitors : (figure 2c) the energy for the operation of the circuit breaker is stored electrically in two storage capacitors. The breaker is de- signed in such a way that when the capacitors are fully charged, there is enough energy for an o-c-o (open-close- open)* o...
15 1val050601-mb rev c c ircuit b reaker c ontrol : all the conditions for control of the magnetic actuator mechanism are defined in a permanently programmed logic module. These conditions are: auxiliary voltage must be applied to the ac/dc converter. the storage capacitors must have sufficien...
16 1val050601-mb rev c p ackages : amvac tm circuit breakers are available with three control packages. The standard package (package 1) comes as an advac ® (spring stored energy mechanism) replacement circuit breaker. It comes with all functions of an advac ® circuit breaker having one secondary di...
17 1val050601-mb rev c structure and function figure 2a: circuit breaker front with controls 1 breaker enclosure 1.1 front plate 1.2 lifting bracket, both sides 2 “ready” indicator 3 close push-button 4 open push-button 5 mechanical operating cycle counter 6 mechanical close/open indicator 7 rating ...
18 1val050601-mb rev c i nterlocks : the amvac™ circuit breaker contains a number of interlocks. A description of each interlock follows as encountered during racking of the circuit breaker into the compartment. P osition i nterlocks : the position release lever must be depressed in order to begin r...
19 1val050601-mb rev c m aintenance : the mechanism requires visual inspection of hardware, lubrication and operation during routine inspection. Before beginning any maintenance, remove the control power, and initiate the discharge of the storage capacitors by pulling the truck handles inward. Wait ...
20 1val050601-mb rev c t ruck : the truck requires visual inspection of hardware, lubrication and operations during routine maintenance. With the breaker outside the cell, verify all visible hardware tightness, including handles (9) and wheels (7). Wheels should rotate freely by hand movement. Repla...
21 1val050601-mb rev c p rimary c ircuit a ssembly : (pole) the primary circuit requires visual inspection of hardware, low-frequency withstand voltage testing to insure vacuum, and lubrication during routine maintenance. All insulation material should be clean and free of structural cracks. Some mi...
22 1val050601-mb rev c c ontrol w iring : the control wiring requires visual inspection of hardware during routine maintenance. Disconnect control power before verifying secondary hardware and before low-frequency withstand voltage testing. Remove the front cover with a screwdriver. Correct any loos...
23 1val050601-mb rev c 15 2 1 4 3 9 19 18 17 16 10 # description 1 front plate assembly 2 charged/discharged “ready” indicator 3 close push button 4 open push button 5 operation counter 6 close/open indicator 7 rating label 8 manual opening handle slot 9 collar 10 racking screw 11 position release l...
24 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices d rawout b reaker : all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
25 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
26 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
27 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
28 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
29 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
30 1val050601-mb rev c appendix b basic breaker dimensions and weights appendices all amvac tm circuit breakers of this style have the same basic dimensions (i.E. Pole spacing) regardless of pole configuration. Provided by northeast power systems, inc. (nepsi).
31 1val050601-mb rev c appendix b appendices type u i r i sc mechanism cubile amvac 15kv 1200-2000a 50ka a5 safegear hd tm weight 410lbs, 186kg provided by northeast power systems, inc. (nepsi).
32 1val050601-mb rev c appendix b appendices type u i r i sc mechanism cubile amvac 15kv 3000a 50ka a5 safegear hd tm weight 420lbs, 190kg provided by northeast power systems, inc. (nepsi).
33 1val050601-mb rev c appendix c ed2 electronic control board appendix c following are the basic characteristics for the control power and close and open operations of the amvac tm circuit breaker. D rawout - s tandard w iring : the schematic illustrates the basic wiring scheme for a drawout circui...
34 1val050601-mb rev c e lectronic c ontrol b oard 1.0 overview the actuator control board is comprised of a power supply recharge unit, control unit, and fet switching circuit which connects the storage capacitors to the magnetic actuator coils. The power supply recharge circuitry adapts to whateve...
35 1val050601-mb rev c binary inputs there is a removable filter card plugged into the control board. This filter card has five metal jumpers on the board. When these jumpers are cut, the binary input threshold is raised by 20 volts. It is recommended that these jumpers are cut for 125vdc applicatio...
36 1val050601-mb rev c appendix c second trip (km1005, ch 4, pins 7 and 8) this input can be configured as either a protection trip or second trip function. It is programmed via jumper jp1001 pins 1 and 2 or as a normal input by jumping jp1001 pins 2 and 3. The protection trip input is designed to w...
37 1val050601-mb rev c appendix c binary outputs binary outputs are pairs of mechanical wipe relay contacts. They can be employed to switch in other circuitry or to an alarm indicator. See illustration 3 and 4 for the power limitations of the contacts. Notice the flat curve for ac voltage in illustr...
38 1val050601-mb rev c appendix c characteristic wipe contacts relay switching characteristics maximum switching power 1500 va on resistive load maximum switching voltage 400 vac, 300 vdc maximum switching current 6 a maximum rated current 6 a contacts characteristics maximum on resistance (ron) 100...
39 1val050601-mb rev c appendix c e lectronic c ontrol b oard features temperature protection the temperature protection circuit monitors the average temperature of a critical area on the ed2.0 power supply. The output power will be linearly reduced to zero as the temperature increases from 172 to 2...
40 1val050601-mb rev c appendix c e lectronic c ontrol b oard capacitor life the standard 0.1 farad electrolytic capacitors are designed to be operated in the temperature range of --40° f to 185°f (--40°c to 85°c). The end-of-life corresponds to the point at which the capacitance decreases by 20% or...
41 1val050601-mb rev c e lectronic c ontrol b oard appendix c breaker ready / not ready binary output contacts and ready light status condition circuit breaker position close open capacitor energy sufficient for o-co operations ready led: on ready contact: closed not ready contact: opened ready led:...
42 1val050601-mb rev c appendix c i1002 i1004 km1005 (inputs) 14 - under voltage 13 + under voltage 12 - close blocking 11 + close blocking 10 not used 9 not used 8 - 2nd trip/protect trip 7 + 2nd trip/protect trip 6 - aux open/safe open 5 + aux open/safe open 4 - cb remote open 3 + cb remote open 2...
43 1val050601-mb rev c appendix d note : single secondary draw-out has only plug 1. * note: on fixed mount breakers only p3-1 and p3-4 does not ex- ist. Pin 11 on km1005 is directly wired to pin 2 on km1003 for the lock circuit breaker open circuit. Also p1-16 wire 13 goes directly to * * * * * prov...
44 1val050601-mb rev c appendix d * note: o n fixed mou nt brea kers o n ly p3-1 and p3-4 does n ot exist. Pin 11 on km10 05 is directly wire d to pin 2 on km100 3 for the lock circuit brea k- er ope n circui t. Also p1 -16 wire 13 g oe s directly to 52b1 o n bb3 * * provided by northeast power syst...
45 1val050601-mb rev c appendix e procedure for setting under voltage trip option: note: breaker must have dual secondary disconnect to use under voltage option. The under voltage trip input will perform an auto trip in the event the voltage source being monitored by this input falls between 35% to ...
46 1val050601-mb rev c appendix f provided by northeast power systems, inc. (nepsi).
47 1val050601-mb rev c appendix g provided by northeast power systems, inc. (nepsi).
48 1val050601-mb rev c product quality and environmental protection abb products are manufactured to meet or exceed the standards of compliance for quality and environmental manage- ment systems in accordance with iso 9001 and iso 14001. All of these items can be supplied with a certificate of quali...
49 1val050601-mb rev c notes provided by northeast power systems, inc. (nepsi).
50 1val050601-mb rev c contact us abb inc. 655 century point lake mary, fl 32746 phone: +1 407 732 2000 customer service +1 800 929 7947 ext. 5 +1 407 732 2000 ext. 2510 e-mail: customer.Service.Group@us.Abb.Com www.Abb.Com/mediumvoltage all sales are subject to abb inc. General terms and conditions...