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I do laser engraved Panel Tags and Signs. I carry several colors of interior and exterior engravable plastic,sticky back or holes cut no charge. My turn around time is normally 24hrs. I ship the following morning USPS.
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Laseriffic Laser Engraving
Protect your electrical equipments from a sudden surge or disturbance in power by taking surge protection service from Keating Electric. We offer:
- Whole house surge protection
- Office surge protection
- Home theater surge protection
- and many other types of surge suppression services.
Contact keatingelectric.com for more information.
We are offering three different training classes in Baltimore, Maryland at the end of March. These courses provide valuable insight for the most effective and profitable use of electrical estimating software. We take you from job creation, to takeoff, to report generation.
Vision's Electrical Bid Manager™, Time and Material Billing Manager™, On-Screen Takeoff®, and EPIC Pricing Service™. Call Joy Cobb at 1-800-258-7752 Ext. 544 with any questions or to register.
Thurs, March 24th, Electrical C1 (EBM, T&M Billing, EPIC), 8am - 4PM
Thurs, March 24th, Electrical C2 (Advanced EBM), 4:30PM - 7:30PM
Fri, March 25th, Electrical C3 (Takeoff with EBM), 8:30AM - 4PM
Click here to visit our website and view additional class outlines.
All Vision courses are taught by Brian Hoffelder. Brian Hoffelder is Vision InfoSoft's professional software trainer. He is one of the founders of Vision InfoSoft, provider of estimating, billing and pricing software for electrical and plumbing contractors throughout the country. Brian combines over two decades of experience in software development, software training and first hand estimating to provide a real-world perspective on the most critical skills required for efficient and profitable bidding.
Electrical Estimating Software Training
Keating Electric and Technologies provides best electrical contracting services in NY. Contact Keating Electric for electrical contracting services like:
· Wiring and Cabling
· Electrical Service & Upgrade
· Lighting and Controls
· Surge Protection
· Generators etc.
Visit keatingelectric.com for more information.
Custom engraved selector switch plates, legend plates, conduit/valve tags, outlet wall plates, recepticle plates, name tags, labels, tags and signs. Standard selector/switch plates: Cutler Hammer, Allen Bradley, Square D, Eaton, G.E. as well as custom sizes and colors. Very reasonable rates. Made Fast, Shipped Fast. 30% off entire order for new customers.
We have a used Transistorized switching module (TSM) just pulled out of a fully functional APC Silcon 40 KVA UPS System in Excellent Condition.
The power switch TSM is designed as 2 individual 3-phase inverters (main & delta inverter) intended for use in DP300E, 3-phase UPS system.
The TSM operates as an electronically controlled low loss power switch, and consists of the following units:
1 Main inverter IGBT *modules V001 - V003
2 Main inverter driver DR02
3 Delta inverter IGBT module V130
4 Delta inverter driver DR01
5 Filter PCB for main & delta inverter FILT
6 Crowbar thyristor V004
7 DC electrolytic capacitors C001 - C004
8. Heat sink and other mechanics
*) IGBT = Insulated gate bipolar transistor
The main inverter consists of 3 identical half bridge IGBT modules V001 - V003 Each of the 3 modules are internally isolated from the heat sink, and each module consists of 2 IGBT's and 2 freewheeling diodes. The PWM output from the 3 IGBT modules is passed through the filter PCB, where a current measurement takes place.
The driver unit, DR02, takes care of the following functions:
A. Gives galvanic isolation (Opto coupler) between control signals and power electronics. (IGBT's)
B. Galvanic isolated power supplies the driver circuits.
C. Supplies IGBT V001 - V003 with control signal. (+/- 15V) for safe turn ON and turn OFF.
D. Protection of the power transistors in case of overload by means of current sensing technique with Hall sensors. (The Hall sensors are placed on the filter PCB)
The delta inverter consists of a six-pack IGBT module V130, which is internally isolated from the heat sink. This module consists of 6 IGBT's and 6 freewheeling diodes and form a complete 3 phase inverter bridge. The PWM output from this module is led directly to the 3 connectors X001 to X003, on the Delta inverter driver DR01.
The delta inverter driver unit, DR01 is mounted directly on the IGBT module V130 and soldered to the terminals. The main functions of DR01 are the same as for DR02, in addition the delta inverter driver contains the following functions:
A. Hall sensors for overload protection and regulation of mains current.
B. Resistors for sensing the 2 DC voltages.
C. Trigger circuit for the crowbar thyristor
D. Output filter capacitors.
E Hall sensors for measuring of the main inverter current.
F. Resistors for sensing of inverter output voltage.
G. DC decoupling capacitors for the main inverter IGBT's.H. Inverter output fuses.
Custom engraved selector switch plates, legend plates, conduit/valve tags, outlet wall plates, recepticle plates, name tags, labels, tags and signs. Standard selector/switch plates: Cutler Hammer, Allen Bradley, Square D, Eaton, G.E. as well as custom sizes and colors. Very reasonable rates. Made Fast, Shipped Fast.
Books, Tools & Resources for Electrical & Construction Trades