What Controls a Motor? In 1887 Nikola Tesla invented an alternating current (AC) Motor to harness the power of electricity. It is a great invention but not as useful unless operators could turn the motor on and off. Therefore the “knife switch” was created, which connected the power to the motor when the operator manually pulled […]
Electrical buckets are more commonly known as motor control center (MCC) buckets. Essentially, they are metal enclosures that house the control portion of a motor control center. They play a very important role in the industrial power control and distribution systems. Buckets are mainly used in manufacturing facilities for their fast and easy […]
A shunt trip is an optional accessory device that electricians and/or manufacturers install to a circuit breaker. This is known as a shunt trip circuit breaker. Some circuit breakers allow shunt trip kits to be installable in the field. Others require factory installation when ordering the circuit breaker. You can check your specific type of […]
Who doesn’t get a little frustrated when the power goes out every now and then? Especially when you’re in the middle of something. Circuit breakers seem to fail at the least opportune time. But why do circuit breakers fail anyway? First, let’s get back to the basics. We know that circuit breakers trip when there’s […]
Circuit breakers are safety devices that interrupt the flow of current. This happens if there’s either a gradual increase in load or a short circuit, which trips the breaker instantly. The most common times for a breaker to trip in a household are when devices which convert electrical energy to heat are in use. Examples […]
Looking to replace circuit breakers in your Siemens electrical service panel? The straightforward answer is: read your panel for manufacturer’s instructions on acceptable breaker replacements. If the instructions are hard to read (normally they fade over time), then check your existing breakers and replace those with the same type. Firstly, remove one of the old […]
Replacing circuit breakers in your electrical service panel but not sure which ones to use? Normally you would just go to the panel and look up the specified breakers the manufacturer has listed. Maybe you’re trying to save money or can’t find the part you’re looking for and now you’re looking for options. Here is […]
There are many types of testing equipment that make a circuit breaker testing facility successful. If you had to pick your top 3 that you cannot live without, what would they be? We have picked our top 3 pieces of testing equipment below. See how yours compare! Primary Injection Test Set A primary injection […]
The National Electrical Code (NEC) has made some changes as well as added a few articles to the 2017 NEC. If you are in the electrical field, it is a good idea to keep up with the changes that the NEC makes every three years. Here we have listed the scopes of the five new […]
There are many testing equipment that make an electrical contractor / electrician successful in their craft. If you had to pick your top 3 that you cannot live without, what would they be? We have picked our top 3 testing equipment below. See how yours compare! Digital Multi-Meter (Category III or IV) Your digital […]
