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Post by ceilingfansmalta on Apr 13, 2021 12:36:06 GMT -5
GOOD NEWS!!!
Today I was passing near the scrapper where I got my 2nd ceiling fan, and near his garage there was a large number of 1400mm Relite Rapide MKII ceiling fans ready to be scrapped! He told me that I could take them, and I got 2! Unfortunately I do not have the whole fans. I I have 2 blade sets, of which 2 blades were slightly bent and 2 motors, one complete with the down rod, which works but makes a grinding noise due to it being dusty, and one which I have not tested yet. I also have one canopy which has a hole which is too large for the down rod. This is because the fans had short downrods, but were then fixed to thicker pipes. That leaves the shackle of both fans, the blade screws, a down rod, and 3 canopies missing, but it should not be a problem. It is a pity the others are probably going to be scrapped.
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Post by ceilingfansmalta on Apr 14, 2021 7:51:26 GMT -5
UPDATE: today I went back to the scrapper, and replaced the noisy motor with a more silent one, I also got a down rod, blade screws, and the bolts which were missing.
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Post by ceilingfansmalta on Apr 14, 2021 10:12:31 GMT -5
UPDATE: I assembled one of the fans in the laundry room, however I made 3 900mm blades out of aluminium foil trays and cardboard, instead of using the 1400mm blades.
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Post by Tais on Apr 15, 2021 11:20:05 GMT -5
Interesting finds! I would love to see the pics if possible
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Post by ceilingfansmalta on Apr 15, 2021 11:53:00 GMT -5
Yes, I will try to take some pictures soon
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Post by ceilingfansmalta on Apr 22, 2021 12:08:22 GMT -5
UPDATE: yesterday my father and I tried out the other fan. It works too.
By the way, when I still had the one with bad bearings, I opened the motor I noted something interesting. The fans which are made in England (as mentioned on their wall controls at the department store) have an upper bearing (and probably even the lower one) which is made in India. The fans in general also share many characteristics with some other Indian fans I know about, mainly the blades which are possibly identical to Crompton Greaves Riviera!
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Post by ceilingfansmalta on Jul 12, 2021 12:59:45 GMT -5
UPDATE: I know it might seem to be a bit of a shame, but the 1400mm blades were way to big for anywhere in my house, so I cut the 3 worst blades to 1200mm as an experiment, so I still have the best 3 in 140mm. The fan now fits better in the laundry room, but due to the blades, and I think even the shanks being bent the fan is wobbly. Moreover I do not have a rubber for the shackle, so it wobbles all the more. Note: I dared do this because I had already done the same job for the Venti.
Fun fact: I compared the Relite Rapide MKII 1400mm with its blades to the Venti with 900mm blades. One must consider that:
1. the Venti's motor is 200mm in diameter, whereas the Relite Rapide MKII's is only 180mm.
2. The stator of the Venti is wider in diameter and also thicker
3. The Venti's capacitor is 2Mfd and the Relite's is 2.25Mfd
4. Both have 14 + 14 pole motors
As a result, the Relite is more fast and powerful than the Venti, even when the Venti is given the advantage of having smaller blades than the original ones!
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Post by Tais on Jul 12, 2021 15:26:24 GMT -5
Hmm.. i wouldnt alter the size of an original blade, ive obtained some already cut blades from scrap though, and they all had some sort of issues with balance
As of the fan motor's size and power (aside from the number of coils) what makes the fan more powerful is:
More layers of stamp in stator and rotor
The closer the run and start winding to each other
In some cases, thicker concentrated coils
Wider stators
The coil ratio of run and start is not too high
Capacitors work differently on different models of fan, in some cases like india( almost all fans have 2.0 to 2.5 cap values) they have the same values
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Post by ceilingfansmalta on Jul 13, 2021 10:37:21 GMT -5
OK thank you. What is unusual is that 900mm Relite Rapide MKII fans are only 1.6Mfd, and are still very fast.
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