Instruction/ maintenance manual of the product 7ATB Emerson
Go to page of 16
381333–132 F 50 Hanover R oad, Florha m P ark, New J ersey 07932–1591 USA For sales or service call 1 800 800–2726 (A SCO) www.ascopower .com AS CO POWE R TE CHN OLOGI ES CA NA DA PO Box 1238, 1.
.
Ca talo g Number I dentif icatio n T y pical 7000 Ser ies A TB catal og no. for ove rla pping neutra l, 3 pol e, 4000 am p., 480 V , in T y pe 1 encl osure: G7A T B C 3 4000 N 5 C Phase Poles Neutral .
.
1 --- 1 SECT ION 1 INST ALLA TION The ASCO 7000 Series A uto matic T ra nsfer & Bypass–Isolati on Switch (A T B) consists of an upper bypass–isolati on switch, a lower transfer switch, a monitoring and transfer control ler, and door–mounted controls.
INST ALLA TION (continued) 1 --- 2 De–energ ize the conductors bef ore ma king any line or a uxiliary circuitry connections. Be sure that Normal a nd E mergency l ine connections are in prop er phase rota tion. Place eng ine gen - erator sta rti ng co ntrol in the OFF po siti on.
INST ALLATION ( continued) 1 --- 3 obse rve these li ghts Tr a n s f e r S w i t c h Connected To Normal Tr a n s f e r S w i t c h Conne cted To Emergency Normal Source Accepte d Emergency Source Accepte d Tr a n s f e r Control Retrans f er Dela y Bypas s Tr a n s f e r Te s t HOLD FOR 15 SECO NDS RED RED GREEN GREEN ( ) Figure 1 - 2.
INST ALLA TION (continued) 1 --- 4 obse rve these li ghts Tr a n s f e r S w i t c h Connected To Normal Tr a n s f e r S w i t c h Conne cted To Emergency Normal Source Accepte d Emergency Source Acc.
SECT ION 2 TEST ING & SERVICE 2 --- 1 TRA NSF ER TES T T est the A utomati c T ransfer Swit ch portion of the 7000 Series A T B at least once a month. This procedure chec ks the elec trical operation of the T ransfer S witc h and C ontroll er. Put the engine–generat or starti ng con- trol (at the eng i ne–g enerator set) in autom atic mode.
TEST ING & SERVICE (continued) 2 --- 2 TROUBL E-SHOOTING Note any opti onal acc essories tha t may be furnished on the A TB and rev iew their oper ation. R efer to any separat e drawings and/or instructions t hat may be pack ed with the A TB. Haz ardou s voltage capable of c ausi ng shock, burns, or death is u sed in th is swit ch.
SECTION 3 B YP AS SING & ISOLAT ING 3 --- 1 BY PA S S I N G T H E AT S * This pr oc edur e expl ains how to Bypas s the clo sed autom atic transfer sw i tc h contac ts.
B YP AS SING & ISOLA TING (continued) 3 --- 2 ISOLATING THE A TS Isolating is required before any service work can be perform ed on the automatic tr ansfer sw i tc h (A TS). R efer to Figures 3–4, 3–5, 3–6, and 3–7. 1. Bypass t he closed autom atic transfer switc h contac ts.
B YP AS SING & ISOLA TING (continued) 3 --- 3 left s up port le g right support l eg lockin g pin with c lev is pi n lockin g pin with c lev is pi n adjust length to touch fl oo r adjust length to touch fl oo r Draw out p roced ure grasp two handles 1.
B YP AS SING & ISOLA TING (continued) 3 --- 4 RETURN TO SERVI CE This proc edure expl ains how to retur n the autom atic tr ansf er s wit ch (A T S) t o ser vice a ft er i nsp ecti on a nd maintena nce. Observe the By pa ss Switch P ositi on indicat or and lights).
B YP AS SING & ISOLA TING (continued) 3 --- 5 RETURN TO SERVI CE continued* This proc edure expl ains how to retur n the Bypass Sw itch H andle to the OPE N position . The Bypass Han dle must be i n the CL OSED pos it io n (ye llow indic ator on NORMAL or EM ERGENCY )a n d t h e Isol ation Hand le m ust be in the TEST position (window).
INDEX Printed in U .S.A . E ASCO Power T echn olo gies, L .P . 2009 A auxil iary c irc uits, 1–2 B bus connections, 1–2 bypassing t he A TS, 3–1 C cat alog n umber, ins ide co ver cleaning, 2–.
An important point after buying a device Emerson 7ATB (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Emerson 7ATB yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Emerson 7ATB - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Emerson 7ATB you will learn all the available features of the product, as well as information on its operation. The information that you get Emerson 7ATB will certainly help you make a decision on the purchase.
If you already are a holder of Emerson 7ATB, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Emerson 7ATB.
However, one of the most important roles played by the user manual is to help in solving problems with Emerson 7ATB. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Emerson 7ATB along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
